American Megatrends APOLLO MAN 772 User Manual

Apollo IV Pentium

PCI ISA MotherboardGuide

MAN-772

11/21/97

Preface

To the OEM

Thank you for purchasing the high performance American Megatrends

Apollo IV PCI Pentium ISA motherboard. This product is a state of the art

motherboard that includes the famous AMIBIOS. It is assumed that you have

also licensed the rights to use the American Megatrends documentation for

the American Megatrends Apollo IV motherboard

This manual was written for the OEM to assist in the proper installation and

operation of this motherboard. This manual describes the specifications and

features of the Apollo IV motherboard. It explains how to assemble a system

based on the Apollo IV motherboard and how to use the AMIBIOS that is

specifically designed for this motherboard.

This manual is not meant to be read by the computer owner who purchases a

computer with this motherboard. It is assumed that you, the computer

manufacturer, will use this manual as a sourcebook of information, and that

parts of this manual will be included in the computer owner's manual.

Technical Support

If you need help installing, configuring, or running this product, call

American Megatrends technical support at 770-246-8645. You can also send

questions to tech support at:

[email protected].

American Megatrends BBS The American Megatrends BBS permits you to access technical

information about American Megatrends motherboard, peripheral, and BIOS

products. Product Engineering Change Notices, Tech Tips, and technical

documentation are available on the BBS. Some parts of the BBS are not

accessible to all callers. Call American Megatrends Technical Support at 770-

246-8645 to find out how to access the BBS.

Phone Numbers The BBS requires no parity, eight data bits, and one stop bit. The

characteristics of the BBS phone numbers are:

Phone Number

770-246-8780

770-246-8781

770-246-8782

770-246-8783

Characteristics

28,800 baud rate. Supports v.34.

Supports HST and v.42.

Web Site

We invite you to access the American Megatrends world wide web site at:

http://www.ami.com.

Preface

iii

Packing List

You should have received the following:

an Apollo IV Pentium PCI ISA motherboard,

a diskette containing the DMI Wizard 95 utility,

the American Megatrends DMI Wizard 95 User’s Guide,

an optional USB cable and mounting bracket,

two serial cables,

one parallel cable,

a Warranty Card, and

the American Megatrends Apollo IV Pentium ISA Motherboard User's Guide.

Warning

The pinout for the optional USB Cable Box is:

VCC

Pin 1 Red

Pin 2 Green Data +

Pin 3 White Data -

Pin 4 Black Ground

Please make sure that the USB cable is correctly installed. Incorrect

installation will damage the motherboard.

Static Electricity

The Apollo IV motherboard can easily be damaged by static electricity. Make

sure you take appropriate precautions against static electric discharge:

wear a properly-grounded wristband while handling the motherboard or any other

electrical component,

touch a grounded anti-static surface or a grounded metal fixture before handling

the Apollo IV motherboard,

handle system components by the mounting bracket, if possible.

Batteries

Make sure you dispose of used batteries according to the battery

manufacturer’s instructions. Improper use of batteries may cause an

explosion. Make sure you follow the battery manufacturer’s instructions about

using the battery. Replace used batteries with the same type of battery or an

equivalent recommended by the battery manufacturer.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

1 Hardware Installation

Overview

The American Megatrends Apollo IV PCI Pentium ISA motherboard includes

the following features.

CPU

The CPU socket on the motherboard is a 321-pin ZIF socket. A switching

voltage regulator is required. You can install any of the following CPUs:

CPU Manufacturer

Supported CPU Speeds

166, 200, and 233 MHz

90, 100, 120, 133, 150, 166, and 200

Intel® Pentium P55C

Intel Pentium P54C with

MMX™ technology

AMD® K6-166

MHz

166 MHz

200 MHz

233 MHz

90 MHz

100 MHz

90 MHz

100 MHz

105 MHz

116 MHz

133 MHz

AMD K6-200

AMD K6-233

AMD K5-PR90

AMD K5-PR100

AMD K5-PR120

AMD K5-PR133

AMD K5-PR150

AMD K5-PR166

AMD K5-PR200

MMX Technology This motherboard supports CPUs that include support for Intel MMX

technology. MMX technology allows you to experience richer video, audio,

digital imaging and communications when running the latest generation of

multimedia software on your computer.

Cont’d

Chapter 1 Hardware Installation

Overview, Continued

Chipset The Apollo IV PCI Pentium ISA baby-AT size motherboard uses an Intel

430TX chipset, including CPU interface controller, advanced cache

controller, integrated DRAM controller, synchronous ISA bus controller, PCI

local bus interface, and an integrated power management unit. The Intel

430TX chipset supports intelligent diagnostic and power management

through features such as DMI support.

Expansion Slots The motherboard includes:

three 16-bit ISA expansion slots and

four 32-bit PCI expansion slots.

The PCI local bus throughput can be up to 132 megabytes per second.

L1 Internal Cache The Intel Pentium on the motherboard has an 8 KB data cache and an 8

KB instruction cache.

L2 Secondary Cache The motherboard has 512 KB of pipeline burst direct-mapped,

WriteBack L2 secondary cache memory. Up to 256 MB of system memory

can be cached.

Supported Standards The Apollo IV motherboard supports:

DMI,

the Intel DPMA (Dynamic Power Management Architecture,

Concurrent PCI V2.0 and V2.1, and

USB (Universal Serial Bus).

Switching Voltage Regulator This motherboard includes a switching voltage regulator that

significantly reduces the CPU and voltage regulator temperature. This voltage

regulator is also fully upgradable to the next generation of Socket 7 CPUs.

These new CPUs will require more electrical current and will generate more

heat.

Cont‘d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Overview, Continued

CPU Thermal Monitor The Apollo IV motherboard includes a special heat sensor under the

CPU that monitors the CPU temperature. This heat sensor generates an SMI

(System Management Interrupt) when the CPU temperature is too hot. The

SMI can be set to turn on the external cooling fan and/or lower the CPU clock

frequency. You are waned that the CPU is overheating. The CPU is returned

to normal operating conditions when the CPU temperature returns to normal.

This feature can only be implemented if a power supply with a soft-off power

controller is installed in the computer. See the American Megatrends DMI

Wizard 95 User’s Guide for additional information about this feature.

SDRAM

The Apollo IV motherboard provides two 168-pin DIMM system memory

sockets that support SDRAM (Synchronous Dynamic Random Access

Memory). SDRAM increases the CPU-to-memory data transfer rate to 528

MBs. This rate is normally 264 MBs if EDO DRAM is installed. The

integrated I2C controller optimizes the memory timing parameters.

System Memory The motherboard supports up to 256 MB of system memory mounted on the

motherboard as follows:

Type of System

Memory Socket

Type of System

Memory

Supported System

Memory

four 72-pin SIMM

sockets

two 168-pin DIMM

sockets

Fast Page Mode or

EDO DRAM

EDO DRAM or

SDRAM

8 MB, 16 MB, 32 MB,

64 MB, or 128 MB

8 MB, 16 MB, 32 MB,

64 MB, or 128 MB

Cont’d

Chapter 1 Hardware Installation

Overview, Continued

PC 97 Compliant The Apollo IV motherboard is fully compliant with the Microsoft PC 97

specification at both the hardware and the BIOS levels.

PC 97 is a set of hardware, bus, and device design requirements specified by

Microsoft that make computers easier to use. PC 97 supports cooperation

between the operating system, the hardware, and the applications software.

Key PC 97 features include:

Plug and Play compatibility,

power management support for configuring and managing all system

components

32-bit device drivers, and

standard installation procedures for Microsoft Windows 95 and Windows

NT.

AMIBIOS Features This motherboard has an AMIBIOS system BIOS on a Flash ROM with

built-in AMIBIOS Setup. AMIBIOS features include:

IDE block mode and 32-bit data transfer support,

IDE Programmed I/O modes 0, 1, 2, 3, and 4 support,

PS/2 mouse support,

IDE LBA mode support,

APM (Advanced Power Management) and Flash BIOS hooks,

EPA Green PC-compliant,

PCI and Plug and Play (PnP) support, and

DIM (Device Initialization Manager) support,

DMI (Desktop Management Interface) support,

can boot from a CD-ROM drive,

automatically detects system memory, cache memory, and hard disk drive

parameters,

Intel NSP-compliant,

Fast ATA IDE mode programming and ATAPI support,

Boot sector virus protection,

instant-on support,

automatically configures PnP and PCI devices.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Overview, Continued

BIOS Shadowing The system BIOS is always copied from ROM to RAM for faster execution.

The end user can shadow 16 KB ROM segments from C0000h – DCFFFh.

IDE

The Apollo IV motherboard has two 40-pin IDE connectors onboard that

support up to four IDE drives (hard disk drives, CD-ROM drives, or tape

drives). The integrated PCI bus master enhanced IDE controller is on the PCI

local bus. The IDE controller supports the Ultra DMA/33 protocol, which

doubles the hard disk drive data transfer rates specified in the ATA-2

standards to 33 MBs while maintaining full backward compatibility with

existing PIO mode 3, PIO mode 4, and DMA mode 2 devices.

Fast ATA

The motherboard supports the Fast ATA specification using PIO mode 4 and

multiword DMA mode 2.

Ultra DMA/33 This motherboard includes an integrated enhanced IDE PCI bus master IDE

controller that supports the Ultra DMA/33 protocol. The Ultra DMA/33

protocol permits data transfer rates up to 33 MBs. Ultra DMA/33 also reduces

the CPU workload and permits increased CPU utilization. Ultra DMA/33 is

completely backward-compatible with older DMA standards.

Floppy

The Apollo IV motherboard has an onboard floppy controller that supports up

to two 360 KB, 720 KB, 1.2 MB, 1.44 MB, or 2.88 MB floppy drives.

Parallel Port

Serial Ports

Keyboard

The Apollo IV motherboard has an onboard ECP and EPP-capable parallel

port connector.

The Apollo IV motherboard has two onboard serial port connectors and two

16550 UART serial ports.

The Apollo IV motherboard Includes a standard DIN keyboard connector.

Cont’d

Chapter 1 Hardware Installation

Overview, Continued

Mouse

USB

The Apollo IV motherboard includes a 5-pin berg mouse connector.

The Apollo IV motherboard has two 4-pin USB connectors. USB allows

future generations of USB-compliant peripheral devices to be automatically

detected and configured through a single port. USB uses Plug and Play

technology. All USB peripherals are automatically detected and configured.

The AMIBIOS on this motherboard provides complete USB system BIOS

support.

Power Connectors The Apollo IV motherboard has three power supply connectors.

RTC/CMOS RAM A real time clock and 128 bytes of CMOS RAM with a battery backup is

provided on the motherboard.

Power Management Power management services include:

Green PC LED,

power management signal to Green PC-aware power supplies,

automatic IDE and video power down,

monitor blanking,

SMI (System Management Interrupt) support,

APM, and

system stop clock.

PCI Slots

The motherboard conforms to the PCI Version 2.1 specification. The

concurrent PCI architecture of this motherboard allows faster CPU, PCI, and

ISA bus transactions for faster and smoother multimedia performance. This

motherboard allows you to install either PCI V2.0 or PCI V2.1-comaptible

adapter cards

The PCI slots are automatically configured by the AMIBIOS. The PCI slots

operate synchronously with the CPU clock, as follows:

CPU External Clock Frequency

PCI Expansion Slot Frequency

66 MHz

60 MHz

33 MHz

30 MHz

Onboard I/O

The Apollo IV Pentium ISA motherboard includes:

two 40-pin IDE connectors on the PCI bus that support up to four IDE

drives,

a 34-pin floppy drive connector,

two 10-pin serial port connectors (with 16550 UARTs),

a 26-pin parallel port connector with ECP and EPP support,

an infrared connector,

two USB connectors that support an optional riser card that permit high

speed Plug and Play connection to USB-compliant external peripheral

devices,

a keyboard connector, and

a PS/2 mouse connector.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Overview, Continued

DMI

In a corporate environment, system manageability is an important

consideration. DMI (Desktop Management Interface) is a specification for a

standard method of storing and reporting system information. This

motherboard supports the DMI specification on the system BIOS level. DMI

detects and records system configuration information, including the CPU type

and speed, memory size and type, and much more information. DMI

maintains a local database of system configuration information that can be

accessed and even modified from a remote location.

The American Megatrends DMI Wizard 95 is also shipped with this

motherboard. Use DMI Wizard 95 to display and modify DMI information.

DMI Wizard 95 allows a system integrator or user to add additional

information to the DMI database, such as serial numbers and chassis

information. See the American Megatrends DMI Wizard 95 User’s Guide for

additional information.

Infrared

This motherboard includes a 10-pin serial infrared connector. Infrared allows

bidirectional cordless data transactions with other IrDA-compliant computers

and peripheral devices. Infrared transmissions can occur in half-duplex

(sequential transmission/receiving) or full-duplex (simultaneous

transmission) modes.

A 10-pin infrared connector is provided on the motherboard. The

motherboard and AMIBIOS comply with the IrDA SIR infrared device

standards and specifications.

This motherboard complies fully with the IrDA infrared standards. An IrDA-

compliant device can be installed via a 9-pin D-type connector on the rear of

the computer. The 9-pin connector is attached by a cable to the IR berg

connector on the motherboard, next to the serial connectors (COM1 and

COM2). COM2 on the motherboard is an IrDA-compliant port. You must set

the Serial Port2 Mode, IR Transmission Type, and other AMIBIOS Setup

options under Peripheral Setup before you can use an infrared device.

Chapter 1 Hardware Installation

Apollo IV Dimensions

Motherboard Size The Apollo IV Pentium PCI ISA motherboard is the standard baby AT size

(11” by 8.6”).

Motherboard Height Restrictions

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Installation Steps

Step

Action

Unpack the motherboard.

Set Jumpers

Configure the CPU.

Select the CPU voltage.

Select the CPU speed.

Install the CPU.

Install memory.

Install system memory.

Install the motherboard.

Attach cables to connectors.

Connect the power supply.

Attach the keyboard cable.

Connect the mouse cable.

Attach cables.

Connect onboard I/O.

Connect the serial ports.

Connect the parallel port.

Connect floppy drive(s).

Connect the IDE drive(s).

Test and configure.

Warning

This motherboard contains sensitive electronic components

that can be easily damaged by static electricity. Follow the

instructions carefully to ensure correct installation and to

avoid static damage.

Chapter 1 Hardware Installation

Apollo IV Motherboard Layout

Remote

Power

Switch

Speaker

IDE

LED

Reset

Susp.

Turbo

Kbd

Lock

Susp.

LED

PWR

LED

Mode

Switch

LED

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 1 Unpack the Motherboard

Step

Action

Inspect the cardboard carton for obvious damage. If damaged, call 770-

246-8645. Leave the motherboard in its original packing.

Perform all unpacking and installation procedures on a ground-connected

anti-static mat. Wear an anti-static wristband grounded at the same point

as the anti-static mat. Or use a sheet of conductive aluminum foil

grounded through a 1 megohm resistor instead of the anti-static mat.

Similarly, a strip of conductive aluminum foil wrapped around the wrist

and grounded through a 1 megohm resistor serves the same purpose as the

wristband.

Inside the carton, the motherboard is packed in an anti-static bag, and

sandwiched between sheets of sponge. Remove the sponge and the

anti-static bag. Place the motherboard on a grounded anti-static surface

component side up. Save the original packing material.

Inspect the motherboard for damage. Press down on all ICs mounted in

sockets to verify proper seating. Do not apply power to the motherboard if

it has been damaged.

If the motherboard is undamaged, it is ready to be installed.

Chapter 1 Hardware Installation

Step 2 Set Jumpers

Set all jumpers and install the CPU before placing the motherboard in the

chassis. Set jumpers by placing a shunt (shorting bridge) on the designated

pins of the jumper. A shunt and jumpers are shown below:

3-dimensional view of motherboard jumpers and a shunt.

Shunt

2-pin Berg

3-pin Berg

In this manual, jumpers are shown in two -dimensions,

as if viewed from directly above, as shown below:

The placement of shunts is

indicated by a solid line

between pins, as shown

between Pins 1-2

to the right:

PWR1 Power Supply Type PWR1 is a 3-pin berg that sets the power supply type:

PWR1 Setting

Short Pins 1-2

Short Pins 2-3

Description

AT-type power supply is installed (factory setting).

Remote power supply is used.

CPW Clear Password CPW is a 2-pin berg that allows you to delete the system BIOS

password should you forget the password. CPW should be OPEN at all times

during normal operation. Should you forget the password: turn power off,

remove the computer cover, turn power on, place a shorting bridge (shunt) on

CPW for a few seconds, then turn power off again. Reboot the computer and

re-enter all system configuration information, because you have just erased all

of it.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 2 Set Jumpers, Continued

EP1, EP2 Flash ROM Type EP1 and EP2 are 3-pin bergs that specify the type of flash ROM

installed on the motherboard. The settings are:

Flash ROM Type

Intel 28F001

SST 29EE010

MXIC MX28F2000

SST 29EE020

ATMEL AT29C020

AMD 28F020

EP1

Short Pins 2-3

OPEN

Short Pins 2-3

OPEN

EP2

Short Pins 1-2

Short Pins 2-3

OPEN

Short Pins 1-2

Avoid Static Electricity

Static electricity can damage the motherboard and other computer

components. Keep the motherboard in the anti-static bag until it is to be

installed. Wear an anti-static wrist grounding strap before handling the

motherboard. Make sure you stand on an anti-static mat when handling the

motherboard.

Avoid contact with any component or connector on any adapter card, printed

circuit board, or memory module. Handle these components by the mounting

bracket.

Chapter 1 Hardware Installation

Step 3 Configure CPU

Important

Perform the following steps to configure the

motherboard before installing a CPU.

External CPU Clock CLK1, CLK2, and CLK3 are 3-pin bergs that set the CPU external clock

frequency. This motherboard may have any of four different clock generators:

IMI652,

ICS 9147,

ICW, or

PhaseLink.

The CLK1, CLK2, and CLK3 settings are different with the different clock

generators. You must determine the clock generator type (it’s next to the

CPU) before setting these jumpers.

IMI 652 Clock Generator The following CLK1, CLK2, and CLK3 settings apply only if an

IMI 652 clock generator is mounted on the motherboard.

External

(CPUCLK)

66 MHz

60 MHz

55 MHz

CLK1

CLK2

FREQ1

Short Pins 1-2

Short Pins 2-3

N/A

Short Pins 1-2

Short Pins 2-3

N/A

Short Pins 2-3

N/A

50 MHz

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 3 Configure CPU, Continued

ICS 9147 Clock Generator The following CLK1, CLK2, and CLK3 settings apply only if an

ICS 9147 clock generator is mounted on the motherboard.

External

(CPUCLK)

66 6 MHz

60 MHz

55 MHz

50 MHz

CLK1

CLK2

FREQ1

Short Pins 1-2

Short Pins 2-3

Short Pins 1-2

Short Pins 2-3

Short Pins 1-2

Short Pins 2-3

ICW or PhaseLink Clock Generator The following CLK1, CLK2, and CLK3 settings apply

only if an ICW or PhaseLink clock generator is mounted on the motherboard.

External

(CPUCLK)

66 6 MHz

60 MHz

55 MHz

50 MHz

CLK1

CLK2

FREQ1

Short Pins 1-2

Short Pins 2-3

N/A

Short Pins 1-2

Short Pins 2-3

N/A

Short Pins 1-2

N/A

CPU/Bus Frequency Ratio FREQ1, FREQ2, and FREQ3 are 3-pin bergs that set the ratio of

the internal CPU frequency to the bus clock.

For

P54C

For

P55C,

and K6

For

FREQ1

FREQ2

FREQ3

2.5x

Short Pins 1-2

Short Pins 2-3

Short Pins 1-2

Short Pins 2-3

Short Pins 1-2

1.75x

N/A

1.5x

3.5x

Cont’d

Chapter 1 Hardware Installation

Step 3 Configure CPU, Continued

Summary of Jumper Setting for Intel Pentium CPUs

Multi

Ext.

IMI 652 Clock Generator

CLK1 CLK2 CLK3

OCS 9147 Clock Generator

CLK1 CLK2 CLK3

Speed

plier

Speed

FREQ1

FREQ

FRE

P55C

233

3.5x

200

166

2.5x

P54C

200

166

150

133

120

100

2.5x

1.5x

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 3 Configure CPU, Continued

Summary of Jumper Setting for AMD K5 and K6 CPUs

Mult

plier

Ext.

IMI 652 Clock Generator

CLK1 CLK2 CLK3

OCS 9147 Clock Generator

CLK1 CLK2

Speed

CLK3

FREQ1

FREQ2

FREQ3

K6-233

233

3.5x

K6-200

200

166

200

K6-166

2.5x

K5-PR200

K5-PR166

K5-PR150

166

150

1.75x

K5-PR133

K5-PR120

K5-PR100

K5-PR90

133

120

1.5x

100

1.5x

Cont’d

Chapter 1 Hardware Installation

Step 3 Configure CPU, Continued

VR Set Pentium CPU Voltage Install Intel Pentium CPUs that adhere to either the standard or

VRE voltage specifications. VR is a 10-pin berg that sets CPU voltage. VR1

is near the top of the CPU socket.

Intel Pentium CPU Markings The markings on the bottom side of the Intel Pentium CPUs

are:

xxxxxxxxxx

BP80502-SSS

Sxxxx/RSS

xxx

R is the voltage range identifier:

R value

Description

VRE voltage range

Standard voltage range

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 3 Configure CPU, Continued

Set AMD CPU Voltage Install AMD K5 and K6 CPUs that adhere to either the standard or

VRE voltage specifications. VR is a 10-pin berg that sets CPU voltage. VR1

is near the top of the CPU socket.

AMD K5 CPU Markings The markings on the top of the AMD K5 CPUs are:

AMD-K5

AMD-K5-PRxxxABQ

where B is the voltage range identifier.

AMD K6 CPU Markings The markings on the top of the AMD K6 CPUs are:

AMD-K6

AMD-K6-xxxA AMD K5 CPU Markings The markings on the top of the

AMD K5 CPUs are:

AMD-K5

AMD-K5_PRxxxAVQ

where V is the voltage range identifier.

B and V

value

Description

Core

I/O

Core

I/O

3.1 – 3.3V

3.135 – 3.6V

2.755 – 3.045V

3.135 – 3.6V

Cont’d

Chapter 1 Hardware Installation

Step 3 Configure CPU, Continued

Install CPU

Install the CPU in the ZIF (zero insertion force) socket by performing the

following steps. The CPU socket is near one edge of the motherboard.

Warning

Improper CPU installation can damage the CPU and the

motherboard. You must follow the procedures in this section exactly

as documented. Make sure you wear an antistatic wristband while

installing the CPU. Follow all antistatic procedures.

Step

Action

Lift the lever on the ZIF socket. The empty CPU socket looks like

this.

Check for bent pins on the CPU. Gently straighten any bent pins

with pliers. Place the CPU in the middle of the socket. Make sure

that pin 1 of the CPU is aligned with pin 1 of the socket. Make sure

you are properly grounded while handling the CPU.

Complete installation by lifting the ZIF lever to the other side of the

socket, as shown below.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 4 Install Memory

System Memory The motherboard has four 72-pin SIMM – Single Inline Memory Module)

sockets and two 168-pin DIMM sockets. Memory must be populated one bank

at a time. Each bank has two sockets. Each bank must be populated with the

same type of SIMM. If a 16 MB SIMM is installed in the first socket in

Bank0, then the same type of 16 MB SIMM must be installed in the second

Bank0 SIMM socket.

The motherboard supports up to 256 MB of system memory mounted on the

motherboard as follows:

Type of System Memory

Socket

Type of System

Memory

Supported System Memory

four 72-pin SIMM sockets

Fast Page Mode or

EDO DRAM

EDO DRAM or

SDRAM

8 MB, 16 MB, 32 MB, 64 MB, or 128

two 168-pin DIMM

sockets

Supported System Memory Configurations

SIMM

Bank0

SIMM

Bank1

DIMM1

DIMM2

Total System

Memory

4 MB and

4 MB

8 MB

16 MB

32 MB

64 MB

8 MB

8 MB and

8 MB

16 MB

32 MB

16 MB and

16 MB

32 MB

64 MB

32 MB and

32 MB

64 MB

64 MB and

64 MB

128 MB

64 MB

128 MB

256 MB

64 MB and

64 MB

64 MB and

64 MB

Cont’d

Chapter 1 Hardware Installation

Step 4 Install Memory, Continued

Installing SIMMs The motherboard has four x 36 SIMM sockets. These sockets can be filled

with either 1 MB x 36, 4 MB x 36, 8 MB x 36, or 16 MB x 36 SIMMs.

Place the motherboard on an anti-static mat. With the component side of the

SIMM facing you, firmly push the SIMM into the socket at an angle, then

push it up. When properly inserted, the SIMM clicks into place as the

latching pins engage.

Memory Display

System memory is reported by AMIBIOS as it boots and again when

the AMIBIOS System Configuration Screen is displayed just before the

operating system boots. The memory displayed by AMIBIOS on the System

Configuration Screen is 384 KB less than the total memory installed.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 5 Install the Motherboard

The motherboard mounting hole pattern is the same as the mounting hole

pattern on the standard baby AT motherboard. Standoffs and mounting

screws are not supplied with the motherboard. The chassis manufacturer

should supply these parts.

Step

Action

Place the chassis on an anti-static mat. Connect the chassis to ground to avoid

static damage during installation. Connect an alligator clip with a wire lead to

any unpainted part of the chassis. Ground the other end of the lead at the same

point as the mat and the wristband.

Rotate the chassis so the front is to the right, and the rear is to the left. The side

facing you is where the motherboard is mounted. The power supply is mounted

at the far end of the chassis.

Hold the motherboard, component-side up, with the edge with the SIMM

sockets toward you and the edge with the power supply connector away from

you. The keyboard, mouse, and video connectors should be to the left.

Carefully slide the motherboard into the chassis. Make certain the edge

connectors fit the ports in the rear of the chassis. The motherboard should rest

level with the chassis.

Place the mounting screws in the holes provided and tighten them. If necessary,

shift the motherboard slightly to align the mounting holes on the motherboard

with the holes on the chassis. See the drawing on the next screen.

Warning

If using metallic screws, make sure you use them only in the

plated mounting holes.

If using metallic screws, make sure the head of the screw fits

completely inside the plated mounting holes.

See the graphic on the following screen.

Cont’d

Chapter 1 Hardware Installation

Step 5 Install Motherboard, Continued

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 6 Attach Cables

Connectors

The Apollo IV motherboard includes many connectors. Connection

instructions, illustrations of connectors, and pinouts are:

Connector

Power supply connector

Keyboard connector

Mouse connector

CPU Fan

Chassis Fan

Infrared

Remote Power connector

USB connectors

Speaker

IDE LED

Remote Power Switch

Hardware Reset Switch

Power LED (lit when power is on)

Keyboard Lock

Turbo LED (lit when high speed is active)

Suspend Mode Switch

Suspend LED (lit when system in suspend mode)

Serial Port

Parallel port

Floppy drive connector

IDE drive connectors

Cable Connector Ends When connecting chassis connectors to the motherboard, make sure to

connect the correct connector end. Most connector wires are color-coded.

Match the color of the wires leaving the switch or LED to the same pin on the

connector end. There may be more than one connector with the same color-

coded wires. If so, follow the wire to the switch or LED. Pin 1 is indicated by

a white line. Pin 1 is always nearest the white line.

Cont’d

Chapter 1 Hardware Installation

Step 6 Attach Cables, Continued

Connect Power Supply The power supply should match the physical configuration of the

chassis. Make sure that the power switch is Off before assembly.

Before attaching all components, make sure that the proper voltage has been

selected. Power supplies often can run on a wide range of voltages and must

be set (usually via a switch) to the proper range. Use at least a 300 watt power

supply, which should have built-in filters to suppress radiated emissions.

Power Cables Attach the power supply cables to the power connector on the motherboard.

AT-compatible power supplies have one twelve pin connector, as shown

below.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 6 Attach Cables, Continued

Connector Keys The keys on the connector must be cut to fit on some power supplies, as

shown below.

Power Connector Pinout

Description

Power Good (Orange wire) (Not used)

VCC (Red wire)

+12 Volts (Yellow wire)

-12 Volts (Blue wire)

Ground (Black wire)

-5 Volts (White wire)

VCC (Red wire)

Keyboard CableThe keyboard attaches via a PS/2 keyboard connector, labeled AT_KB.

Signal Description

Keyboard data

N/C

Ground

VCC

Keyboard clock

N/C

Cont’d

Chapter 1 Hardware Installation

Step 6 Attach Cables, Continued

Mouse Cable

Attach the mouse connector cable supplied by American Megatrends to the

five-pin mouse berg connector on the motherboard (labeled MS_CON), as

shown below. Attach the standard 9-pin mouse connector at the other end of

the mouse cable to the mouse connector port on the computer case. Incorrect

mouse installation can cause the system to hang.

5-pin to 9-pin

converter cable

Mount this connector

on the computer case.

Attach 5-pin connector to

5-pin mouse berg.

Keyboard

Connector

Mouse

Connector

Motherboard

Description

Mouse Clock

N/C

Mouse Data

Ground

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 6 Attach Cables, Continued

When connecting chassis connectors to the motherboard, make sure to

connect the correct connector end. Most connector wires are color-coded.

Match the color of the wires leaving the switch or LED to the same pin on the

connector end. There may be more than one connector with the same color-

coded wires. If so, follow the wire to the switch or LED. Pin 1 is always

indicated on the motherboard.

CPU Fan

A three-pin berg labeled FAN attaches to the CPU fan. The FAN connector is

near the CPU end of the ISA expansion slots.

Description

Ground

+12V

Ground

Chassis Fan

A three-pin berg labeled EXT_FAN attaches to the chassis cooling fan. The

EXT_FAN connector is near the CPU.

Description

Ground

+12V

Ground

IR Infrared

The 8-pin infrared connector (IR) next to the COM1 and COM2 connectors

attaches to an infrared port mounted on the computer chassis. It allows data

transmission to any other device that supports the IrDA standards for infrared

transmission.

Remote Control Power RPW_COM is a 3-pin berg next to the USB connectors that attaches

to the power supply for enabling system power when the remote power switch

is turned on. Connect a 3-wire power cable to RPW_COM and attach the

other end to the peripheral device.

USB Connectors The Apollo IV motherboard has two 4-pin headers (USB1 and USB2) that

attach to a USB connector on the computer chassis. The USB port allows you

to attach to a USB hub. The USB connector pinouts are the same for both

USB connectors:

Signal Description

VCC (Fused 5V)

- Data

+ Data

Ground

Cont’d

Chapter 1 Hardware Installation

Step 6 Attach Cables, Continued

Block Connector The Apollo IV motherboard has a 22-pin header that is used to connect the

following offboard connectors. The header is on the corner of the

motherboard near the CPU socket.

Pins

17 18 19

14 15 16

20 21

1 2

Pins

Connector

Signal Descriptions

Speaker

Pin 12 VCC

Pin 13 Ground

Pin 14 Ground

Pin 15 Speaker Data

Pin 16 LED Power

Pin 17 IDE Active

Pin 18 Remote Power

Pin 19 Ground

IDE LED

Remote Power Switch (Power when low).

Hardware Reset Switch

Pin 20 Hard Reset

Pin 21 Ground

Power LED (lit when power is on)

Keyboard Lock

Pin 1

Pin 2

Pin 4

Pin 5

Pin 6

Pin 7

Pin 8

Pin 9

+Power

Ground

Keyboard Lock

Ground

TURBO_LIT

TURBO_LEDPWR

Suspend In Switch

Ground

Turbo LED (lit when low speed is active)

Suspend Mode Switch (Suspend when

Low)

Suspend LED (lit when system in suspend Pin 10 Suspend Out LED+

mode)

Pin 11 Suspend Out LED-

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 7 Connect Onboard I/O

Onboard I/O

The Apollo IV motherboard has:

two serial ports (COM1 and COM2),

a parallel port (LPT),

an IDE controller on the PCI bus. The primary IDE connector is IDE1.

The secondary connector is IDE2.

a floppy controller (FDD).

The serial and parallel port connectors are described below.

Conflicts

AMIBIOS minimizes conflicts between onboard and offboard I/O devices.

AMIBIOS automatically checks the adapter cards installed in the expansion

slots on the Apollo IV motherboard for a hard disk or floppy controller and

serial or parallel ports.

Serial Ports

COM1 and COM2 are 10-pin connectors that provide an AT-compatible

serial port interface. Connect the cables supplied with the motherboard to the

10-pin serial connectors. The serial port base I/O port address and other serial

port settings can be selected in Peripheral Setup in AMIBIOS Setup. The

serial connector pinout is shown below. COM2 and IR use the same IRQ, so

the COM2 connector does not work if an infrared device is attached to the IR

connector.

Description

Carrier Detect

Receive Data

Transmit Data

Data Terminal

Ready

Signal Description

Data Set Ready

Request to Send

Clear to Send

Ring Indicator

Ground

CUT PIN

Cont’d

Chapter 1 Hardware Installation

Step 7 Connect Onboard I/O, Continued

Parallel Port

PRINTER is a 26-pin connector for a parallel port. The LPT pinout is shown

below. Connect the 26-pin to DB25 cable provided with the motherboard to

PRINTER. All parallel port settings can be configured through Peripheral

Setup in WINBIOS Setup.

Signal Description

STROBE#

PD1

Signal Description

PD0

PD2

PD3

PD4

PD5

PD6

PD7

ACK#

BUSY

SLCT

AUTOFD#

INIT#

ERROR#

SLCTIN#

Ground

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 8 Attach Floppy Drive

FLOPPY

FLOPPY is a 34-pin dual-inline berg. Connect the cable from the floppy drive

to FLOPPY, as shown below. The onboard floppy controller cannot be used if

a hard disk card with a floppy controller is installed. Choose Standard Setup

and Peripheral Setup to configure the floppy controller.

The motherboard supports up to two 720 KB, 1.44 MB, or 2.88 MB 3½"

drives and 360 KB and 1.2 MB 5¼" drives. The connecting cable is a 34-pin

ribbon connector with two 34-pin edge connectors for attaching the floppy

disk drives. There is a small twist in the cable between the floppy connectors.

The last (end) connector should be connected to floppy drive A:.

Cont’d

Chapter 1 Hardware Installation

Step 8 Attach Floppy Drive, Continued

Floppy Connector Pinout

Use

DENSE1

N/C

GND

DRATE0

-INDEX

-MOTOR0

-FDSEL1

-FDSEL0

-MOTOR1

DIR

-WDATA

-WGATE

-TRK0

-WRPROT

-RDATA

HDSEL

DSKCHNG

Twist in Floppy Cable

Floppy B to A

10 to 16

Floppy B to A

12 to 14

Floppy B to A

14 to 12

15 to 11

16 to 10

11 to 15

13 to 13

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 9 Attach IDE Drive

IDE Drives

Attach the IDE drives in the following manner. Choose Peripheral Setup in

WINBIOS Setup to enable the onboard IDE controller.

Cont’d

Chapter 1 Hardware Installation

Step 9 Attach IDE Drive, Continued

Attach IDE Cable The primary IDE (Integrated Drive Electronics) hard disk drive connector

is marked PRIMARY. Both the primary master and the primary slave IDE

drives must be connected by cable to PRIMARY, as shown below.

PRIMARY is a 40-pin dual-inline berg that connects an IDE drive to the

primary onboard IDE connector. This motherboard supports IDE Modes 0, 1,

2, 3, and 4, IDE prefetch, LBA (Logical Block Address) mode, high capacity

drives (over 528 MB), 32-bit data transfer, and fast IDE transfer. These IDE

features are configured in Peripheral Setup in the WINBIOS Setup utility.

Disable the onboard IDE interface in Peripheral Setup to use an ISA ESDI,

RLL, MFM, or SCSI hard disk drive controller.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 9 Attach IDE Drive, Continued

PRIMARY Pinout The PRIMARY IDE pinout is:

Use

-RESET

DATA7

DATA6

DATA5

DATA4

DATA3

DATA2

DATA1

DATA0

GND

N/C

-IOW

-IOR

IDERDY

N/C

Use

GND

DATA8

DATA9

DATA10

DATA11

DATA12

DATA13

DATA14

DATA15

KEY (N/C)

GND

ALE

GND

-IOCS16

N/C

HA2

-CS1

GND

INT14

HA1

HA0

-CS0

-IDEACT

Secondary IDE Controller The secondary IDE connector is labeled SECONDARY. It

connects the secondary primary and slave IDE drives to the secondary

onboard IDE controller.

Attach the secondary master and slave IDE drives to IDE2 via a standard 40-

pin IDE cable.

Cont’d

Chapter 1 Hardware Installation

Step 9 Attach IDE Drive, Continued

SECONDARY IDE Pinout The SECONDARY pinout is:

Use

-RESET

DATA7

DATA6

DATA5

DATA4

DATA3

DATA2

DATA1

DATA0

GND

N/C

-IOW

-IOR

IDERDY

N/C

Use

GND

DATA8

DATA9

DATA10

DATA11

DATA12

DATA13

DATA14

DATA15

KEY (N/C)

GND

ALE

GND

-IOCS16

N/C

HA2

-CS3

GND

INT15

HA1

HA0

-CS2

N/C

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Step 10 Test and Configure

Review the following points before powering up:

make sure that all adapter cards are seated properly,

make sure all connectors are properly installed,

make sure the CPU is seated properly,

make sure there are no screws or other foreign material on the

motherboard,

plug the system into a surge-protected power strip, and

make sure blank back panels are installed on the back of the chassis to

minimize RF emissions.

Start the Test Plug everything in and turn on the switch. If there are any signs of a problem,

turn off the unit immediately. Reinstall the connectors. Call Technical

Support if there are problems.

BIOS Errors

If the system operates normally, a display should appear on the monitor. The

BIOS Power On Self Test (POST) should execute.

If POST does not run successfully, it will beep or display error messages.

Beeps indicate a serious problem with the system configuration or hardware.

The Beep Code indicates the problem. AMIBIOS Beep Codes are defined in

the AMIBIOS Technical Reference. Make sure the affected part is properly

seated and connected. An error message is displayed if the error is less

serious. Recheck the system configuration or the connections.

Configure the System Run WINBIOS Setup. You must enter the requested information and

save the configuration data in CMOS RAM. The system will then reset, run

POST, and boot the operating system. See the following chapter for

information about configuring the computer.

Chapter 1 Hardware Installation

2 WINBIOS^®Setup

In ISA and EISA computers, the system parameters (such as amount of

memory, type of disk drives and video displays, and many other elements) are

stored in CMOS RAM. Unlike the DRAM (dynamic random access memory)

that is used for standard system memory, CMOS RAM requires very little

power. When the computer is turned off, a back-up battery provides power to

CMOS RAM, which retains the system parameters. Every time the computer

is powered-on, the computer is configured with the values stored in CMOS

RAM by the system BIOS, which gains control when the computer is powered

on.

The system parameters are configured by a system BIOS Setup utility.

Historically, BIOS Setup utilities have been character-based, required

keyboard input, and have had user interfaces that were not very intuitive.

Graphical Interface American Megatrends has a new type of system BIOS Setup utility.

WINBIOS Setup has a graphical user interface the end user can access using

a mouse. The WINBIOS Setup code is so compact that it can reside on the

same ROM as the system BIOS. The system configuration parameters are set

by WINBIOS Setup.

Since WINBIOS Setup resides in the ROM BIOS, it is available each time the

computer is turned on.

Starting WINBIOS Setup As POST executes, the following appears:

Hit <DEL> if you want to run SETUP

Press <Del> to run WINBIOS Setup.

Chapter 2 WINBIOS Setup

Using a Mouse with WINBIOS Setup

WINBIOS Setup has a built-in mouse driver and can be accessed by either a

serial mouse or PS/2-style mouse. WINBIOS Setup supports Microsoft-

Compatible serial mice and all PS/2-type mice.

The mouse click functions are: single click to change or select both global

and current fields and double click to perform an operation in the selected

field.

Using the Keyboard with WINBIOS Setup

WINBIOS has a built-in keyboard driver that uses simple keystroke

combinations:

Keystroke

<Tab>

<®, ¬ , • , ¯

<Enter>

Action

Change or select a global field.

Change or select the current field.

Perform an operation in the current field.

Increment a value.

–

Decrement a value.

<Esc>

Abort any window function.

Return to the previous screen.

Advance to the next screen.

Returns to the beginning of the text.

Advance to the end of the text.

<PgUp>

<PgDn>

<Home>

<End>

<Ctrl><Alt><+> Change to high speed.

<Ctrl><Alt><-> Change to low speed.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

WINBIOS Setup Menu

The WINBIOS Setup main menu is organized into four sections. Each of

these sections corresponds to a section in this chapter.

Each section contains several icons. Clicking on each icon activates a specific

AMIBIOS function. The WINBIOS Setup main windows and related

functions are described on the next screen.

Main Windows The WINBIOS Setup main windows are:

Setup, described in Section 1 has icons that permit you to set system

configuration options such as date, time, hard disk type, floppy type, and

many others,

Security, described in Section 2 has three icons that control AMIBIOS

security features, and

Utilities, described in Section 3 sets the screen color and allows language

changes,

Default, described in Section 4 has three icons that permit you to select a

group of settings for all WINBIOS Setup options.

Chapter 2 WINBIOS Setup

Section 1 Setup

Standard Setup

Standard Setup options are displayed by choosing the Standard icon from the

WINBIOS Setup main menu. All Standard Setup options are described in this

section.

Date/Time

Select the Standard option. Select the Date and Time icon. The current values

for each category are displayed. Enter new values through the keyboard.

Floppy Drive A: and B: Move the cursor to these fields via • and ¯ and select the floppy type.

The settings are 360 KB 5¼ inch, 1.2 MB 5¼ inch, 720 KB 3½ inch, 1.44 MB

3½ inch, or 2.88 MB 3½ inch.

Primary Master, Primary Slave, Secondary Master, Secondary Slave Select one of these

hard disk drive icons to configure the hard disk drive named in the option.

Select Auto from the drive parameters screen to let AMIBIOS automatically

configure the drive. A screen with a list of drive parameters appears. Click on

OK to configure the drive.

Drive Type

How to Configure

SCSI

Select Type. Select Not Installed in the drive parameter screen. The SCSI

drivers provided by the SCSI drive or SCSI host adapter manufacturer should

allow you to configure the SCSI drive.

IDE

Select Type. Select Auto to let AMIBIOS determine the parameters. Click on

OK when AMIBIOS displays the drive parameters.

Select LBA/Large Mode. Select On if the drive has a capacity greater than

540 MB.

Select Block Mode. Select On to allow block mode data transfers.

Select 32-Bit Transfer. Select On to allow 32-bit data transfers.

Select the PIO Mode. It is best to select Auto to allow AMIBIOS to determine

the PIO mode. If you select a PIO mode that is not supported by the IDE

drive, the drive will not work properly. If you are absolutely certain that you

know the drive’s PIO mode, select PIO mode 0 - 5, as appropriate.

Select Type. Select CDROM. Click on OK when AMIBIOS displays the drive

parameters.

CD-ROM

Standard

MFM Drive

Non-

Standard

MFM Drive

Select Type. You must know the drive parameters. Select the drive type that

exactly matches your drive’s parameters.

Select Type. If the drive parameters do not match the drive parameters listed

for drive types 1 - 46, select User and enter the correct hard disk drive

parameters.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Standard Setup, Continued

Entering Drive Parameters You can also enter the hard disk drive parameters. The drive

parameters are:

Parameter

Type

Description

The number for a drive with certain identification parameters.

The number of cylinders in the disk drive.

Cylinders

Heads

The number of heads.

Write

The actual physical size of a sector gets progressively smaller as the track

Precompensation diameter diminishes. Yet each sector must still hold 512 bytes. Write

precompensation circuitry on the hard disk compensates for the physical

difference in sector size by boosting the write current for sectors on inner

tracks. This parameter is the track number on the disk surface where

write precompensation begins.

Landing Zone

This number is the cylinder location where the heads normally park when

the system is shut down.

Sectors

The number of sectors per track. MFM drives have 17 sectors per track.

RLL drives have 26 sectors per track. ESDI drives have 34 sectors per

track. SCSI and IDE drives have even more sectors per track.

Capacity

The formatted capacity of the drive is the number of heads times the

number of cylinders times the number of sectors per track times 512

(bytes per sector).

Cont’d

Chapter 2 WINBIOS Setup

Standard Setup, Continued

Hard Disk Drive Types

Type

Cylinders

Heads

Write

Precompensation

Landing

Zone

Sectors

Capacity

306

615

940

615

462

733

900

820

855

306

733

612

977

1024

733

306

925

754

699

823

918

1024

612

1024

615

987

820

977

981

830

917

1224

128

300

305

615

940

615

511

733

901

820

855

319

733

663

977

1023

732

733

336

925

754

699

823

918

1024

612

1024

615

987

820

977

981

830

918

1223

10 MB

20 MB

31 MB

62 MB

47 MB

20 MB

31 MB

30 MB

112 MB

20 MB

35 MB

50 MB

20 MB

43 MB

20 MB

41 MB

57 MB

60 MB

30 MB

43 MB

30 MB

10 MB

54 MB

69 MB

44 MB

69 MB

41 MB

68 MB

53 MB

94 MB

128 MB

43 MB

10 MB

77 MB

68 MB

41 MB

25 MB

57 MB

41 MB

48 MB

69 MB

114 MB

152 MB

300

512

65535

256

65535

128

65535

300

65535

512

300

65535

754

65535

256

65535

918

65535

1024

128

65535

512

128

987

820

977

981

512

65535

AMIBIOS automatically sets IDE drive parameters. Select USER to enter MFM, ESDI, or RLL drive

parameters. Select Not Installed for SCSI drives. Select CDROM for CD-ROM drives.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Advanced Setup

Advanced Setup options are displayed by choosing the Advanced icon from

the WINBIOS Setup main menu. All Advanced Setup options are described

in this section.

System Keyboard This option does not specify if a keyboard is attached to the computer.

Rather, it specifies if error messages are displayed if a keyboard is not

attached. This option permits you to configure workstations with no

keyboards. The settings are Absent or Present. The Optimal and Fail-Safe

default settings are Present.

Setup Color Scheme This option specifies the color scheme for the WINBIOS Setup utility.

The settings are LCD, Army, Pastel, or Sky. The Optimal and Fail-Safe

default settings are LCD.

PS/2Mouse Support Set this option to Enabled to enable AMIBIOS support for a PS/2-type

mouse.. The settings are Enabled or Disabled. The Optimal and Fail-Safe

default settings are Enabled.

Display BIOS POST Messages Set this option to Yes to display the standard AMIBIOS

messages during the BIO Power On Self Test (POST) phase. The settings are:

Setting

Description

The standard messages that AMIBIOS displays before

booting the system will appear on the system monitor.

The standard AMIBIOS POST messages will not appear on

the system monitor.

Yes

Cont’d

Chapter 2 WINBIOS Setup

Advanced Setup, Continued

Display Add-On ROM Messages Set this option to Yes to display any additional screen

messages from an option ROM. This option can only be selected if the

Display BIOS POST Message option is set to No. The settings are:

Setting

Yes

Description

Display messages from an option ROM.

Do not display messages from an option ROM.

The Optimal and Fail-Safe default settings are No.

Pause on Config. Screen This option specifies the length of time that the AMIBIOS

configuration screen appears. The settings are 2 (seconds), 3, 4, 5, 6, 7, 8, 9,

10, 11, 12, 13, 14, or Disabled. The Optimal and Fail-Safe default settings

are Disabled.

Boot Up Num Lock Set this option to On to turn the Num Lock key On at system boot. The

settings are On or Off. The Optimal and Fail-Safe default settings are On.

Password CheckThis option enables the password check option every time the system boots or

the end user runs Setup. If Always is chosen, a user password prompt appears

every time the computer is turned on. If Setup is chosen, the password prompt

appears if WINBIOS is executed. The Optimal and Power-On defaults are

Setup.

Boot To OS/2 Set this option to Yes if running OS/2 operating system and using more than

64 MB of system memory on the motherboard. The settings are Yes or No.

The Optimal and Fail-Safe default settings are No.

Floppy Drive Seek Set this option to Enabled to specify that floppy drive A: will perform a

Seek operation at system boot. The settings are Disabled or Enabled. The

Optimal and Fail-Safe default settings are Disabled.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Advanced Setup, Continued

Floppy Drive Swap Set this option to Enabled to permit drives A: and B: to be swapped. The

settings are Enabled or Disabled. The Optimal and Fail-Safe default settings

are Disabled.

Floppy Access Control This option specifies the read/write access that is set when booting

from a floppy drive. The settings are Read/Write or Read-Only. The Optimal

and Fail-Safe default settings are Read/Write.

Hard Disk Access Control This option specifies the read/write access that is set when booting

from a hard disk drive. The settings are Read/Write or Read-Only. The

Optimal and Fail-Safe default settings are Read/Write.

S.M.A.R.T. For Hard Disks Set this option to Enabled to permit AMIBIOS to use the

SMART (Self Monitoring Analysis and Reporting Technology) protocol for

reporting server system information over a network. The settings are Enabled

or Disabled. The Optimal and Fail-Safe default settings are Disabled.

Primary Master ARMD Emulator As

Primary Slave ARMD Emulator As

Secondary Master ARMD Emulator As

Secondary Slave ARMD Emulator As These options specify the type of standard PC drive

that an ARMD drive will use when attached as a master or slave to the

specified IDE channel. The settings are Auto (AMIBIOS automatically

determines the correct type of drive emulation), Floppy, or Hard Disk. The

Optimal and Fail-Safe default settings are Auto.

If Auto is selected, AMIBIOS configures ARMD drives as follows:

Type of ARMD Device

LS120

Drive Emulation Configured

Floppy

Iomega Zip drive

Magneto-Optical drive

Hard Disk

Cont’d

Chapter 2 WINBIOS Setup

Advanced Setup, Continued

1^stBoot Device This option sets the type of device for the first boot drives that the AMIBIOS

attempts to boot from after AMIBIOS POST completes. The settings are

Disabled, Network, Floppy, ARMD-FDD, ARMD-HDD, ATAPI, SCSI,

CDROM, 1^stIDE-HDD, 2nd IDE-HDD, 3^rdIDE HDD, or 4^thIDE-HDD. The

Optimal and Fail-Safe default settings are Disabled.

2nd Boot Device This option sets the type of device for the second boot drives that the

AMIBIOS attempts to boot from after AMIBIOS POST completes. The

settings are Disabled, Floppy, ARMD-FDD, ARMD-HDD, ATAPI, SCSI,

CDROM, 1^stIDE-HDD, 2nd IDE-HDD, 3^rdIDE HDD, or 4^thIDE-HDD. The

Optimal and Fail-Safe default settings are Disabled.

3rd Boot Device This option sets the type of device for the third boot drives that the AMIBIOS

attempts to boot from after AMIBIOS POST completes. The settings are

Disabled, Floppy, ARMD-FDD, ARMD-HDD, ATAPI, CDROM, 1^stIDE-

HDD, 2nd IDE-HDD, 3^rdIDE HDD, or 4^thIDE-HDD. The default settings

are ARMD-HDD.

4th Boot Device This option sets the type of device for the third boot drives that the AMIBIOS

attempts to boot from after AMIBIOS POST completes. The settings are

Disabled, Floppy, ARMD-FDD, ARMD-HDD, ATAPI, CDROM, 1^stIDE-

HDD, 2nd IDE-HDD, 3^rdIDE HDD, or 4^thIDE-HDD. The default settings

are Disabled.

Try Other Boot Devices Set this option to Yes to instruct AMIBIOS to attempt to boot from

any other drive in the system if it cannot find a boot drive among the drives

specified in the 1^stBoot Device, 2^ndBoot Device, 3^rdBoot Device, and 4^th

Boot Device options. The settings are Yes or No. The Optimal and Fail-Safe

default settings are Yes.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Advanced Setup, Continued

External Cache Set this option to Enabled to enable L2 secondary (external) cache memory.

The settings are Enabled or Disabled. The Optimal default setting is

Enabled. The Fail-Safe default setting is Disabled.

Caching Controller Set this option to Yes if a cache controller is installed in the computer.

Setting

Description

To comply with the PCI specifications, PCI adapter cards

must be reset every time the CPU is reset. When the end

user forces a soft reset by pressing <Ctrl> <Alt> <Del>, only

the CPU is reset. When this option is set to No, all soft

resets are converted to hard resets, and all PCI adapter cards

are reset when the CPU is reset.

Absent

(the

default

setting)

Soft resets still behave like soft resets when Yes is selected.

Select this option if a caching controller is installed in the

computer. Soft resets must not generate a hard reset if a

caching controller is used. If a hard reset is generated, a PCI

caching controller card cannot flush data from cache memory

to a hard disk drive before the reset.

Present

Video Shadow C000,32K This option controls the location of the contents of video ROM. The

settings are:

Setting

Description

The contents of the video ROM area (C0000h - C7FFFh) are written to the

corresponding address in RAM.

Shadow

The contents of the video ROM area (C0000h - C7FFFh) are written to the

corresponding RAM address and may be read from or written to cache

memory.

Cached

The video ROM is not copied to RAM. The contents of the video ROM

cannot be read from or written to cache memory.

Disabled

The Optimal default setting is Cached. The Fail-Safe default setting is

Disabled.

Shadow C800,16K

Shadow CC00,16K

Shadow D000,16K

Shadow D400,16K

Shadow D800,16K

Shadow DC00,16K These options enable shadowing of the contents of the ROM area in the

option title.

Setting

Description

The contents of the ROM area are written to the corresponding address in

RAM for faster execution.

Shadow

The contents of the ROM area are written to the corresponding RAM

address and can be read from or written to cache memory.

The ROM is not copied to RAM. The contents of the video ROM cannot be

read from or written to cache memory.

Cached

Disabled

The Optimal and Fail-Safe settings are Disabled.

Chapter 2 WINBIOS Setup

Chipset Setup

The AMIBIOS Setup options described in this section are selected by

choosing the Chipset Setup icon from the Setup section on the WINBIOS

Setup main menu.

USB Function Set this option to Enabled to enable the system BIOS USB (Universal Serial

Bus) functions. The settings are Enabled or Disabled. The Optimal and Fail-

Safe default settings are Enabled.

USB Keyboard/Mouse Legacy Support Set this option to Enabled to enable USB support for

legacy keyboards and mice. The settings are Enabled or Disabled. The

Optimal and Fail-Safe default settings are Enabled.

ISA 8 Bit I/O Recovery Time This option specifies the length of the delay that is added to the

CPU cycle between consecutive 8-bit I/O operations. The length of the delay

is related to the CPU type and frequency. The settings are 1 Sysclock, 2

Sysclocks, 3 Sysclocks, 4 Sysclocks, 5 Sysclocks, 6 Sysclocks, 8 Sysclocks, or

Disabled. The Optimal and Fail-Safe default settings are Disabled.

ISA 16 Bit I/O Recovery This option specifies the length of the delay that is added to the CPU

cycle between consecutive 16-bit I/O operations. The length of the delay is

related to the CPU type and frequency. The settings are 1 Sysclock, 2

Sysclocks, 3 Sysclocks, 4 Sysclocks, or Disabled. The Optimal and Fail-Safe

default settings are Disabled.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Power Management Setup

The AMIBIOS Setup options described in this section are selected by

choosing the Power Management Setup icon from the Setup section on the

AMIBIOS Setup main menu.

Power Management/APM Set this option to Enabled to enable the Intel Triton 2 power

management features and APM (Advanced Power Management). The settings

are Enabled, Inst-On (instant-on), or Disabled. The Optimal and Fail-Safe

default settings are Disabled.

Instant On Support Set this option to Enabled to enable AMIBIOS support for the Intel

InstantON specification. The settings are Enabled or Disabled. The Optimal

and Fail-Safe default settings are Disabled.

Green PC Monitor Power State This option specifies the power state that the green PC-

compliant video monitor enters when AMIBIOS places it in a power saving

state after the specified period of display inactivity has expired. The settings

are Off, Standby, Suspend, or Disabled. The Optimal and Fail-Safe default

settings are Standby.

Video Power Down Mode This option specifies the power conserving state that the VESA

VGA video subsystem enters after the specified period of display inactivity

has expired. The settings are Disabled, Standby, or Suspend. The Optimal

and Fail-Safe default settings are Disabled.

Hard Disk Power Down Mode This option specifies the power conserving state that the hard

disk drive enters after the specified period of hard drive inactivity has

expired. The settings are Disabled, Standby, or Suspend. The Optimal and

Fail-Safe default settings are Disabled.

Hard Disk Timeout (Minute) This option specifies the length of a period of hard disk drive

inactivity. When this length of time expires, the computer enters power-

conserving state specified in the Hard Disk Power Down Mode option (see

the previous screen). The settings are Disabled and 1 Min. through 15 Min in

1 minute intervals. The Optimal and Fail-Safe default settings are Disabled.

Standby/Suspend Timer Unit This option specifies the unit of time used for the Standby and

Suspend timeout periods. The settings are 4 msec, 4 sec, 32 sec, or 4 min.

The Optimal and Fail-Safe default settings are 4 min.

Standby Timeout This option specifies the length of a period of system inactivity while in Full

power on state. When this length of time expires, the computer enters

Standby power state. The settings are Disabled, 4 min, 8 min, up to and

including 508 minutes, in increments of 4 minutes. The Optimal and Fail-Safe

default settings are Disabled.

Suspend Timeout This option specifies the length of a period of system inactivity while in

Standby state. When this length of time expires, the computer enters Suspend

power state. The settings are Disabled, 4 min, 8 min, up to and including 508

minutes, in increments of 4 minutes. The Optimal and Fail-Safe default

settings are Disabled.

Cont’d

Chapter 2 WINBIOS Setup

Power Management Setup, Continued

Slow Clock Ratio This option specifies the speed at which the system clock runs in power

saving states. The settings are expressed as a ratio between the normal CPU

clock speed and the CPU clock speed when the computer is in the power-

conserving state. The settings are 0-12.5%, 12.5-25%, 25-37.5%, 37.5-50%,

50-62.5%, 62.5-75%, or 75-87.5%. The Optimal and Fail-Safe defaults are

1:8.

Display Activity This option specifies if AMIBIOS is to monitor display activity for power

conservation purposes. When this option is set to Monitor and there is no

display activity for the length of time specified in the Standby Timeout

(Minutes) option, the computer enters a power savings state. The settings are

Monitor or Ignore. The Optimal and Fail-Safe default settings are Ignore.

Device 6 (Serial Port 1)

Device 7 (Serial Port 2)

Device 8 (Parallel Port)

Device 5 (Floppy Disk)

Device 0 (Primary Master IDE)

Device 1 (Primary Salve IDE)

Device 2 (Secondary Master IDE)

Device 3 (Secondary Slave IDE) When set to Monitor, these options enable event monitoring

on the specified hardware interrupt request line. If set to Monitor and the

computer is in a power saving state, AMIBIOS watches for activity on the

specified IRQ line. The computer enters the Full On state if any activity

occurs. AMIBIOS reloads the Standby and Suspend timeout timers if activity

occurs on the specified IRQ line.

The settings for each of these options are Monitor or Ignore. The Optimal and

Fail-Safe default settings are Ignore.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

PCI/PnP Setup

Choose the PCI/PnP Setup icon from the WINBIOS Setup screen to display

the PCI and Plug and Play Setup options, described below.

Plug and Play-Aware OS Set this option to Yes if the operating system in this computer is

aware of and follows the Plug and Play specification. Windows 95 is PnP-

aware. The settings are Yes or No. The Optimal and Fail-Safe default settings

are No.

PCI VGA Palette Snoop When this option is set to Enabled, multiple VGA devices operating

on different buses can handle data from the CPU on each set of palette

registers on every video device. Bit 5 of the command register in the PCI

device configuration space is the VGA Palette Snoop bit (0 is disabled). For

example: if there are two VGA devices in the computer (one PCI and one

ISA) and the VGA Palette Snoop bit is:

Snoop Bit

Action

Data read and written by the CPU is only directed to the PCI VGA device's

palette registers.

Disabled

Data read and written by the CPU is directed to the both the PCI VGA device

palette registers and the ISA VGA device palette registers, and the palette

registers of both devices can be identical.

Enabled

This option must be set to Enabled if an ISA adapter card installed in the

system uses VGA palette snooping. The Optimal and Fail-Safe default

settings are Disabled.

Allocate IRQ to PCI VGA Set this option to Yes to allocate an IRQ to a VGA adapter card

that uses the PCI local bus. The settings are Yes or No. The Optimal and Fail-

Safe default settings are Yes.

PCI Slot-1 Latency Timer

PCI Slot-2 Latency Timer

PCI Slot-3 Latency Timer

PCI Slot-4 Latency Timer These options specify the latency timings (in PCI clocks) for PCI

devices installed in the four PCI expansion slots. The settings are 32, 64, 96,

128, 160, 192, 224, or 248. The Optimal and Fail-Safe default settings are 64.

USB Device Latency Timer This option specifies the latency timings (in PCI clocks) for USB

devices installed in the computer. The settings are 32, 64, 96, 128, 160, 192,

224, or 248. The Optimal and Fail-Safe default settings are 64.

USB Device IRQ Preference These options specify the IRQ priority for USB devices installed

in the computer. The settings are Auto, IRQ5, IRQ9, IRQ10, IRQ11, IRQ14,

and IRQ15, in priority order. If Auto is selected, AMIBIOS automatically

determines the optimal IRQ priority order. The Optimal and Fail-Safe default

settings are Auto.

PCI Slot-1 IRQ Preference

PCI Slot-2 IRQ Preference

PCI Slot-3 IRQ Preference

PCI Slot-4 IRQ Preference These options specify the IRQ priority for PCI devices installed in

the four PCI expansion slots. The settings are Auto, IRQ5, IRQ9, IRQ10,

IRQ11, IRQ 14, and IRQ15, in priority order. If Auto is selected, AMIBIOS

automatically determines the optimal IRQ priority order. The Optimal and

Fail-Safe default settings are Auto.

Cont’d

Chapter 2 WINBIOS Setup

PCI/PnP Setup, Continued

IRQ3

IRQ4

IRQ5

IRQ7

IRQ9

IRQ10

IRQ11

IRQ12

IRQ14

IRQ15

These options specify the bus that the specified IRQ line is used on. These

options allow you to reserve IRQs for legacy ISA adapter cards. These options

determine if AMIBIOS should remove an IRQ from the pool of available

IRQs passed to devices that are configurable by the system BIOS. The

available IRQ pool is determined by reading the ESCD NVRAM. If more

IRQs must be removed from the pool, the end user can use these options to

reserve the IRQ by assigning an ISA setting to it. Onboard I/O is configured

by AMIBIOS. All IRQs used by onboard I/O are configured as PCI, PnP, or

PCI/PnP. IRQ14 and 15 will not be available if the onboard Triton 2 PCI IDE

is enabled. If all IRQs are set to ISA and IRQ14 and 15 are allocated to the

onboard PCI IDE, IRQ9 will still be available for PCI and PnP devices,

because at least one IRQ must be available for PCI and PnP devices. The

settings are ISA, PnP, PCI/PnP, or PCI. The Optimal and Fail-Safe default

settings are:

Option

IRQ3

IRQ4

IRQ5

IRQ7

Optimal Default

PnP

Fail-Safe Default

PCI/PnP

PnP

PCI/PnP

PnP

PCI/PnP

PnP

PCI/PnP

IRQ9

IRQ10

IRQ11

IRQ12

IRQ14

IRQ5

PCI/PnP

DMA Channel 0

DMA Channel 1

DMA Channel 3

DMA Channel 5

DMA Channel 6

DMA Channel 7These options allow you to specify the bus type used by each DMA channel.

The settings are PnP or ISA. The Optimal and Fail-Safe default settings are

PnP.

Reserved ISA Card Memory Size This option specifies the size of the memory area reserved

for legacy ISA adapter cards. The settings are Disabled, 16K, 32K, or 64K.

The Optimal and Fail-Safe default settings are Disabled.

Reserved ISA Card Memory Address This option specifies the beginning address (in hex) of

the reserved memory area. The specified ROM memory area is reserved for

use by legacy ISA adapter cards.

The settings are C0000, C4000, C8000, CC000, D0000, D4000, D8000, or

DC000. The Optimal and Fail-Safe default settings are C4000.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Peripheral Setup

Choose the Peripheral Setup icon from the WINBIOS Setup screen to display

the Peripheral Setup options, described below.

Onboard Floppy Controller Set this option to Enabled to enable the floppy drive controller

on the motherboard. The settings are Enabled or Disabled. The Optimal and

Fail-Safe default settings are Enabled.

Onboard Primary/Secondary IDE This option specifies the IDE channels on the onboard

IDE controller that will be used. The settings are Disabled, Primary,

Secondary, or Both. The Optimal and Fail-Safe default settings are Disabled.

Onboard IDE Bus Master Set this option to Enabled to specify that the IDE controller on the

PCI local bus includes a bus mastering capability. The settings are Enabled or

Disabled. The Optimal and Fail-Safe default settings are Disabled.

Primary Prefetch

Secondary Prefetch These options specify the IDE channel or channel where prefetch is

enabled. The settings are Disabled, Master, Slave, or Both. There are no

default settings.

Offboard PCI/ISA IDE Card This option specifies if an offboard PCI IDE controller adapter

card is installed in the computer. You must choose ISA if an ISA IDE card is

installed or the PCI expansion slot on the motherboard where the offboard

PCI IDE controller is installed. If an offboard ISA or PCI IDE controller is

used, the onboard IDE controller is automatically disabled. The settings are

Auto (AMIBIOS automatically determines where the offboard PCI IDE

controller adapter card is installed), Absent, ISA, Slot1, SLot2, Slot3, or

Slot4. The Optimal And Fail-Safe default settings are Auto.

In the AMIBIOS for the Intel Triton II ISA chipset, this option forces IRQ14

and IRQ15 to a PCI slot on the PCI Local bus. This is necessary to support

non-compliant ISA IDE controller adapter cards.

If an offboard PCI IDE controller adapter card is installed in the computer,

you must also set the Offboard PCI IDE Primary IRQ and Offboard PCI

IDE Secondary IRQ options.

Offboard Primary/Secondary This option specifies the IDE controller channels used by the

offboard IDE adapter card. The settings are Disabled, Primary, Secondary, or

Both. There are no Optimal and Fail-Safe default settings.

Offboard PCI IDE Primary IRQ

Offboard PCI IDE Secondary IRQ These options specify the PCI interrupt used by the

primary or secondary IDE channel on the offboard PCI IDE controller. The

settings are Disabled, Hardwired, INTA, INTB, INTC, or INTD. The Optimal

and Fail-Safe default settings are Disabled.

Onboard Serial Port1 IRQ This option specifies the IRQ used for serial port1. The settings

are IRQ4 or Disabled. The Optimal default setting is IRQ4. The Fail-Safe

default setting is Disabled.

Cont’d

Chapter 2 WINBIOS Setup

Peripheral Setup, Continued

Onboard Serial Port1 Address This option specifies the base I/O port address of serial port 1.

The settings are Auto (AMIBIOS automatically determines the correct base

I/O port address), Disabled, 3F8h, or 3E8h. The Optimal default setting is

3F8h. The Fail-Safe default setting is Disabled.

Onboard Serial Port1 FIFO Set this option to Enabled to enable the serial port1 FIFO buffer.

The settings are Enabled or Disabled. The Optimal and Fail-Safe default

settings are Disabled.

Onboard Serial Port2 IRQ This option specifies the IRQ used for serial port2. The settings

are IRQ3 or Disabled. The Optimal default setting is IRQ3. The Fail-Safe

default setting is Disabled.

Onboard Serial Port2 Address This option specifies the base I/O port address of serial port 2.

The settings are Auto (AMIBIOS automatically determines the correct base

I/O port address), Disabled, 2F8h, or 2E8h. The Optimal default setting is

3F8h. The Fail-Safe default setting is Disabled.

Onboard Serial Port2 FIFO Set this option to Enabled to enable the serial port2 FIFO buffer.

The settings are Enabled or Disabled. The Optimal and Fail-Safe default

settings are Disabled.

Onboard Serial Port2 Mode This option specifies the serial port 2 mode. The settings are

Normal or IrDA (Infrared). The Optimal and Fail-Safe default settings are

Normal.

IR Duplex Mode This option selects the infrared transmission method. The settings are Full

or Half. The Optimal and Fail-Safe default settings are Full.

IrDA Protocol This option specifies the infrared standard used for the serial port2 infrared

capability. The settings are 1.6 us or 3/16. The Optimal and Fail-Safe default

settings are unspecified because IR is not the default setting for the Serial

Port2 Mode option.

Onboard Parallel Port IRQ This option specifies the IRQ used by the parallel port. The

settings are Disabled, IRQ 5, or IRQ 7. The Optimal default setting is IRQ 7.

The Fail-Safe default setting is Disabled.

Cont’d

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Peripheral Setup, Continued

Onboard Parallel Port Address This option specifies the base I/O port address of the parallel

port on the motherboard. The settings are Disabled, 378h, or 278h. The

Optimal default setting is 378h. The Fail-Safe default setting is Disabled.

Onboard Parallel Port Mode This option specifies the parallel port mode. The Optimal default

setting is Normal. The Fail-Safe default setting is Disabled. The settings are:

Setting

Normal

SPP/

Description

The normal parallel port mode is used.

The parallel port can be used with devices that adhere to the SPP or Enhanced

Parallel Port (EPP) specification. EPP uses the existing parallel port signals to

provide asymmetric bidirectional data transfer driven by the host device.

The parallel port can be used with devices that adhere to the Extended Capabilities

Port (ECP) specification. ECP uses the DMA protocol to achieve data transfer rates

up to 2.5 Megabits per second. ECP provides symmetric bidirectional

communication.

EPP

ECP

EPP Version

This option specifies the Enhanced Parallel Port specification version number

that is used if the Parallel Port Mode option is set to EPP. This option can

only be selected if the Parallel Port Mode option is set to EPP

The settings are 1.7 or 1.9. There are no Optimal and Fail-Safe default

settings because the default setting for the Parallel Port Mode option is not

EPP.

Parallel Port DMA Channel This option is only available if the setting for the Parallel Port

Mode option is ECP. This option sets the DMA channel used by the parallel

port. The settings are (DMA Channel) 0, 1 or 3. The Optimal and Fail-Safe

default settings are 3.

Chapter 2 WINBIOS Setup

Section 2 Security

Three icons appear in this part of the WINBIOS Setup screen:

Supervisor (Password),

User (Password), and

Anti-Virus.

Two Levels of Passwords Both the Supervisor and the User icons configure password support.

If you use both, the Supervisor password must be set first.

The system can be configured so that all users must enter a password every

time the system boots or when WINBIOS Setup is executed, using either or

both the Supervisor password or User password.

AMIBIOS Password Support

The Supervisor and User icons activate two different levels of password

security.

If WINBIOS Setup has an optional password feature. The system can be

configured so that all users must enter a password every time the system boots

or when WINBIOS Setup is executed.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Setting a Password

The password check option is enabled in Advanced Setup (see the Advanced

Setup section ) by choosing either Always (the password prompt appears every

time the system is powered on) or Setup (the password prompt appears only

when WINBIOS is run). The password is encrypted and stored in NVRAM.

As shown on the above screen, you are prompted for a 1 – 6 character

password. You can either type the password on the keyboard or select each

letter of the password, one at a time, using the mouse. The password does not

appear on the screen when typed. Make sure you write it down. If you forget

it, you must drain NVRAM and reconfigure.

If You Do Not Want to Use a Password Just press <Enter> when the password prompt

appears.

Changing a Password

Select the Supervisor or User icon from the Security section of the WINBIOS

Setup main menu. Enter the password and press <Enter>. The screen does

not display the characters entered. After the new password is entered, retype

the new password as prompted and press <Enter>.

If the password confirmation is incorrect, an error message appears. If the

new password is entered without error, press <Esc>. The password is stored

in NVRAM after WINBIOS completes. The next time the system boots, a

password prompt appears if the password function is present and enabled.

Remember the Password Keep a record of the new password when the password is changed. If

you forget the password, you must erase the system configuration information

in NVRAM (Non-Volatile Random Access Memory).

Chapter 2 WINBIOS Setup

Anti-Virus

When this icon is selected from the Security section of the WINBIOS Setup

main menu, AMIBIOS issues a warning when any program (or virus) issues a

Disk Format command or attempts to write to the boot sector of the hard disk

drive. The settings are Enabled or Disabled. If enabled, the following appears

when a write is attempted to the boot sector. You may have to type N several

times to prevent the boot sector write.

Boot Sector Write!!!

Possible VIRUS: Continue (Y/N)? _

The following appears after any attempt to format any cylinder, head, or

sector of any hard disk drive via the BIOS INT 13 Hard Disk Drive Service:

Format!!!

Possible VIRUS: Continue (Y/N)? _

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Section 3 Utility

The following icons appear in this section of the WINBIOS Setup main

screen:

Detect IDE

Language

Choose this option to let AMIBIOS automatically detect and configure the

parameters for an IDE hard disk drive.

If this feature is enabled, you can select WINBIOS Setup messages in

different languages.

Chapter 2 WINBIOS Setup

Section 4 Default

The icons in this section permit you to select a group of settings for all

WINBIOS Setup options. Not only can you use these icons to quickly set

system configuration parameters, you can choose a group of settings that have

a better chance of working when the system is having configuration-related

problems.

Original

Optimal

Choose the Original icon to return to the system configuration values present

in WINBIOS Setup when you first began this WINBIOS Setup session.

You can load the optimal default settings for the WINBIOS by

selecting the Optimal icon. The Optimal default settings are best-case values

that should optimize system performance. If NVRAM is corrupted, the

Optimal settings are loaded automatically.

Fail-Safe

You can load the Fail-Safe WINBIOS Setup option settings by selecting the

Fail-Safe icon from the Default section of the WINBIOS Setup main menu.

The Fail-Safe settings provide far from optimal system performance, but are

the most stable settings. Use this option as a diagnostic aid if the system is

behaving erratically.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

3 Programming the Flash ROM

All versions of the Apollo IV motherboard use Flash EPROM to store the

system BIOS. The advantage of Flash EPROM is the EPROM chip does not

have to be replaced to update the BIOS. The end user can actually reprogram

the BIOS, using a ROM file supplied by American Megatrends.

Programming the Flash EPROM

Step

Action

Turn power off. Make sure the computer has a working speaker.

Insert the floppy disk with the S772P.ROM file in drive A:.

Before DOS boots, press and hold down the <Ctrl> and <Home> keys to

reprogram the Flash EPROM-based AMIBIOS. The bootblock code immediately

reads the A: drive, looking for the new BIOS information.

When the flash ROM has successfully been programmed, the computer will

reboot.

Bootblock BIOS Actions When you reprogram from system boot, the bootblock BIOS code:

Reads S772P.ROM from the root directory of the floppy disk in drive A:.

Erases the Flash EPROM.

Programs the Flash EPROM with the data read from the floppy disk in drive

A:.

Generates a CPU reset, rebooting the computer.

The bootblock part of the Flash EPROM is not programmed. Should you

inadvertently open the disk drive door or turn power off to the computer while

programming the Flash EPROM, the bootblock will be unaffected. Simply

turn power back on and begin the Flash ROM programming process again.

Cont’d

Chapter 2 WINBIOS Setup

Programming the Flash ROM, Continued

S772P.ROM

S772P.ROM resides on a floppy disk and contains the updated main BIOS

code. American Megatrends will provide this file when the AMIBIOS for the

Apollo IV ISA motherboard must be updated.

S772P.ROM must be present in the root directory of the floppy disk before the

onboard Flash EPROM can be reprogrammed. The file that has the main

BIOS code must be named S772P.ROM.

Sequence of Operation The sequence of operation and expected behavior of the bootblock

BIOS code is:

Step

Expected behavior

1 Look for floppy

disk.

The system beeps one time before the BIOS attempts to read from

floppy drive A:.

2 Look for

S772P.ROM on the

floppy disk.

S772P.ROM must be in the root directory of the floppy disk in

drive A:. There is no beep if successful.

3 Read the floppy

disk.

The floppy disk is read. There is no beep if this step is successful.

4 Check for BIOS file The BIOS file size is checked. There is no beep if this step is

size.

successful.

5 Check for Flash

EPROM.

The BIOS looks for an Intel i28F001BX-T Flash EPROM. It does

not beep if this step is successful.

6 Erase the Flash

EPROM.

Two beeps sound when the BIOS begins erasing the Flash

EPROM.

7 Program the Flash

EPROM.

Three beeps sound when the AMIFlash Code begins

reprogramming the Flash EPROM.

8 Continue

programming the

Flash EPROM.

Four beeps sound when reprogramming has been successfully

completed.

9 AMIFlash does a

reset.

A CPU reset is generated to reboot the computer.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

Programming the Flash ROM, Continued

Beep Codes

The bootblock code produces a series of beeps during Flash ROM

programming to:

signify completion of a step (as shown on the previous screen), or to

signal an error.

Error beeps are arranged in a coded sequence and have different meanings

depending on when they occur. The error beep codes and when they can occur

are:

Number of Beeps

Description

Insert diskette in floppy drive A:.

The AMIBOOT.ROM file was not found in the root directory of the diskette

in floppy drive A:.

Base memory error.

Flash program successful.

Floppy read error.

Keyboard controller BAT command failed.

No Flash EPROM detected.

Floppy controller failure.

Boot Block BIOS checksum error.

Flash erase error.

Flash program error.

AMIBOOT.ROM file size error.

Flash Programming successful. Turn power off. The turn power on again to

restart.

Continuous beep

Chapter 2 WINBIOS Setup

Bootblock Code Checkpoint Codes

Code

Description

E0h

E1h

E2h

Verify the bootblock BIOS checksum. Disable the internal cache, DMA, and

interrupt controllers. Initialize the system timer. Start memory refresh.

Initialize the chipset registers. Set the BIOS size to 128K. Make the 512 KB

base memory available.

Test the base 64 KB of system memory. Send the BAT command to the

keyboard controller. Make sure that <Ctrl> <Home> was pressed. Verify the

main system BIOS checksum.

E3h

E4h

E5h

E6h

E7h

E8h

E9h

EAh

The main system BIOS is good. Transfer control to the main system BIOS.

Start the memory test.

The memory test is over. Initialize the interrupt vector table.

Initialize the DMA and interrupt controllers.

Determine the CPU internal clock frequency.

Initialize the I/O chipset, if any.

Program the CPU clock-dependent chip set parameters.

Enable the timer and the floppy diskette interrupt. Enable the internal cache.

Copy the bootblock BIOS and pass control to the bootblock BIOS in the 0000h

segment.

EDh

EEh

EFh

F0h

Initialize the floppy drive.

Look for a diskette in drive A:. Read the first sector of the diskette.

Floppy read error.

Search for AMIBOOT.ROM in the root directory of the floppy diskette in drive

A:.

F1h

F2h

The AMIBOOT.ROM file is not in the root directory.

Read the FAT. Analyze the FAT to find the clusters occupied by the

AMIBOOT.ROM.

F3h

F4h

F5h

Start reading the AMIBOOT.ROM file, cluster by cluster.

The AMIBOOT.ROM file is not the correct size.

Disable the internal cache. Raise the Vpp. Enable Flash write and reset the

Flash ROM.

FBh

FCh

FDh

FEh

FFh

Detect the flash type.

Start erasing flash blocks.

Program the Flash ROM in the E0000-EFFFFh region.

Start programming Flash at F0000-FFFFF region.

Flash programming is successful. The computer reboots.

Apollo IV PCI Pentium ISA Motherboard User’s Guide

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