User Guide
EVGA nForce 750i SLI
Motherboard
Table of Contents
Before You Begin… .....................................................................................................vi
Parts NOT in the Kit .................................................................................................vi
Intentions of the Kit ..................................................................................................vi
EVGA nForce 750i Motherboard..................................................................................1
Motherboard Specifications...................................................................................... 1
Motherboard Specifications continued......................................................................... 2
UnPacking and Parts Description ................................................................................ 3
Equipment .................................................................................................................. 4
Motherboard Internal Connectors and Back Panel Connectors .................................. 5
I/O Panel description.....................................................................................................6
Safety Instructions.................................................................................................... 6
Preparing the Motherboard ...................................................................................... 6
Hardware Installation ........................................................................................... 7
Installing the CPU and Fan .................................................................................. 8
Installing Memory DIMMs..................................................................................... 9
Installing the Motherboard...................................................................................... 10
Installing the I/O Shield ...................................................................................... 10
Securing the Motherboard into the Chassis....................................................... 10
Connecting Cables and Setting Switches.............................................................. 11
Power Connections............................................................................................ 12
24-pin ATX Power (PWR1) ............................................................................ 12
8-pin ATX 12V Power (PWR2)....................................................................... 12
Connecting IDE Hard Disk Drives...................................................................... 13
Connecting Serial ATA Cables .......................................................................... 14
Connecting Internal Headers ............................................................................. 15
Front Panel Header........................................................................................ 15
IEEE 1394a .................................................................................................... 16
USB Headers ................................................................................................. 16
Audio .................................................................................................................. 17
COM 1................................................................................................................ 17
Fan Connections................................................................................................ 18
Expansion Slots ................................................................................................. 19
PCI Slots ........................................................................................................ 19
PCI Express x1 Slot ....................................................................................... 19
PCI Express x16 Slots ................................................................................... 19
Onboard Buttons.................................................................................................... 20
Configuring the BIOS ..................................................................................................21
Enter BIOS Setup................................................................................................... 21
Main Menu.............................................................................................................. 22
Standard CMOS Features Menu ........................................................................... 22
Date and Time.................................................................................................... 23
IDE Channel and SATA Channel....................................................................... 23
Drive A................................................................................................................ 23
Halt On ............................................................................................................... 23
Memory .............................................................................................................. 23
Advanced BIOS Features ...................................................................................... 24
Removable Device Priority................................................................................. 24
Hard Disk Boot Priority....................................................................................... 25
Quick Power On Self Test.................................................................................. 25
First/Second/Third Boot Device ......................................................................... 25
Boot Other Device.............................................................................................. 25
Boot Up NumLock Status................................................................................... 25
Security Option................................................................................................... 25
APIC Mode......................................................................................................... 25
MPS Version Control For OS............................................................................. 26
Full Screen LOGO Show.................................................................................... 26
Advanced Chipset Features................................................................................... 26
Spread Spectrum ............................................................................................... 26
System BIOS Cacheable ................................................................................... 26
Integrated Peripherals Menu.................................................................................. 27
IDE Function Setup............................................................................................ 27
RAID Config ....................................................................................................... 28
USB Config......................................................................................................... 28
MAC Config........................................................................................................ 28
HD Audio............................................................................................................ 29
IEEE1394 controller ........................................................................................... 29
IDE HDD Block Mode......................................................................................... 29
Onboard FDC Controller .................................................................................... 29
Onboard Serial Port 1 ........................................................................................ 29
Power Management Setup Menu .......................................................................... 30
ACPI Function.................................................................................................... 30
ACPI Suspend Type........................................................................................... 30
Power Management........................................................................................... 30
HDD Power Down.............................................................................................. 30
Soft-Off by PBNT ............................................................................................... 30
WOL(PME#) From Soft-Off................................................................................ 31
Power On by Alarm............................................................................................ 31
HPET Function................................................................................................... 31
POWER ON Function ........................................................................................ 31
PWRON After PWR-Fail .................................................................................... 32
PnP/PCI Configuration Menu................................................................................. 32
Init Display First.................................................................................................. 32
Reset Configuration Data................................................................................... 32
Resources Controlled By ................................................................................... 33
IRQ Resources................................................................................................... 33
PCI/VGA Palette Snoop..................................................................................... 33
Maximum Payload Size...................................................................................... 33
PC Health Status................................................................................................ 34
Dynamic Fan Control ......................................................................................... 34
Frequency/Voltage Control ................................................................................ 35
CPU Clock Ratio ................................................................................................ 35
LDT Frequency .................................................................................................. 35
System Clocks ................................................................................................... 35
FSB & Memory Config ....................................................................................... 36
FSB Memory Clock Mode .................................................................................. 36
Memory Timing Settings .................................................................................... 37
System Voltages ................................................................................................ 38
CPU Core........................................................................................................... 38
CPU FSB............................................................................................................ 38
System Monitor Menu ..........................................
Installing Drivers and Software ...................................
Driver Installation .....................................................
Appendix A. POST Codes............................................
nForce 750i SLI Motherboard
Before You Begin…
Parts NOT in the Kit
This kit contains all the hardware necessary to install and connect your new EVGA nForce® 750i SLI
motherboard. However, it does not contain the following items that must be purchased separately to
make the motherboard functional.
Intel microprocessor:
Intel Core 2 Extreme, Intel Core 2 Quad, Intel Core 2 Duo Pentium EE,
Pentium D, Pentium
Cooling fan for the microprocessor
System memory support:
Supports dual channel DDR2 533/667/800,
Memory.
Supports up to 8 GBs DDR2 memory.
Graphics Card
This motherboard supports 2-way SLI with two x16 PCI Express slots.
Power Supply
The power supply requirement is dependent upon the power and the number of the GPUs you
install. If you are going to SLI two graphics cards, you are going to require more power. As a
rule, for one GPU you need a minimum of a 350 W power supply. If you have two GPUs in an
SLI configuration, you will need a minimum of a 500 W power supply. To calculate the power
you are going to require for your specific configuration, go to www.slizone.com.
These instructions tell you how to install each of the parts listed so you can have a functioning
motherboard. As you go through the installation instructions, we are assuming you have pur-
chased the necessary parts.
Intentions of the Kit
This kit provides you with the motherboard and all connecting cables necessary to install the moth-
erboard into a PC case. If you are building a PC, you will use most of the cables provided in the kit.
If however, you are replacing a motherboard, you will not need many of the cables.
When replacing a motherboard in a PC case, you will need to reinstall an operating system even
though the current drives have an operating system.
EVGA
EVGA nForce 750i
Motherboard
Thank you for buying the EVGA NFORCE 750i SLI Motherboard. This motherboard offers the tools
and performance PC users’ demand. When combined with two SLI-Ready NVIDIA GeForce graph-
ics cards, you get innovative NVIDIA SLI Technology for enhanced system performance.
Motherboard Specifications
Size
ATX form factor of 245mm x 305mm
Microprocessor support
Intel Core 2 Extreme, Intel Core 2 Quad, Intel Core 2 Duo, Pentium EE, Pentium D, Pentium
Operating systems:
Supports Windows XP 32bit/64bit and Windows Vista 32bit/64bit
Contains NVIDIA nForce 750i SLI MCP and SPP
System Memory support
Supports dual channel JEDEC DDR2-800 memory.
Supports up to 8 GBs of DDR2 memory.
Eight USB 2.0 Ports
Supports hot plug
Eight USB 2.0 ports (six rear panel ports, two onboard USB headers)
Supports wake-up from S1 and S3 mode
Supports USB 2.0 protocol up to 480 Mbps transmission rate
Onboard Serial ATA II
300MBps data transfer rate
Four Serial ATA II connectors
NVIDIA MediaShield RAID with support for RAID 0, RAID 1, RAID 0+1, RAID 5, and JBOD
Supports hot plug and NCQ (Native Command Queuing )
Onboard LAN
LAN interface built-in onboard
Supports 10/100/1000 Mbit/sec Ethernet
Onboard 1394
Support hot plug
Two 1394a ports (one rear panel port, one onboard header) with rate of transmission at 400
Mbps
nForce 750i SLI Motherboard
Onboard Audio
Azalia High-Definition audio
Supports 8-channel audio
Supports S/PDIF output
Supports Jack-Sensing function
Green Function
Supports ACPI (Advanced Configuration and Power Interface)
Supports S0 (normal), S1 (power on suspend), S3 (suspend to RAM), S4 (Suspend to disk -
depends on OS), and S5 (soft - off)
Expansion Slots
Three PCI slots
One PCI Express x1 slot
Two PCI Express x16 Graphics slot compliant with PCI Express 2.0
Unpacking and
Parts Descriptions
Unpacking
The NVIDIA nForce 750i SLI motherboard comes with all the necessary cables
for adding a motherboard to a new chassis. If you are replacing a motherboard,
you may not need many of these cables.
Be sure to inspect each piece of equipment shipped in the packing box. If
anything is missing or damaged, contact your reseller.
All parts shipped in this kit are RoHS-compliant (lead-free) parts.
Equipment
The following equipment is included in the NVIDIA nForce 750i SLI
motherboard box.
NVIDIA nForce 750i SLI Motherboard
This PCI Express motherboard contains the
NVIDIA nForce 750i SLI SPP and MCP and is
SLI-ready.
I/O Shield
Installs in the chassis to block radio
frequency transmissions, protect internet
components from dust and foreign objects
and aids in proper airflow within the chassis.
Floppy Cable
Used to attach a floppy drive to the
motherboard.
3
2-Port SATA Power Cable (Qty Three)
1394 Cable
Provides two additional 1394 ports to either
the front or back panels of the chassis.
USB 2.0 4-Port Cable
Provides four additional USB ports to either
the front or back panels of the chassis.
SATA Signal Cable (Qty Four)
Used to support the Serial ATA protocol and
each one connects a single drive to the
motherboard
Comm2 Bracket Cable
IDE-ATA 133 HDD Cable
Driver Installation CD
SLI Bridge 2-Way
nForce 750i SLI Motherboard
1. CPU 775 Socket
11. Serial connector
12. Battery
21. Azalia HD Audio Header
2. CPU fan connector
3. DDR2 DIMM slots 0 - 3
4. 24-pin ATX power connector
5. IDE connector
22. FP Audio connector
23. SPDIF connector
13. Front panel connector
14. USB header
24. PCI slots
15. Reset CMOS button
16. Auxiliary fan connector
17. System fan connector
18. Power button
25. PCI Express x16 slots
26.1394a connector
6. Chassis fan2 connector
7. FDD connector
27. PCI Express x1 slot
28. Backpanel connectors (Figure 2)
29. 8-pin ATX_12V power connector
30. Chipset fan connector
8. Serial-ATA (SATA) connectors
9. Post port
19. Reset button
10. Chassis fan connector
20. Speaker
7
1
3
2
4
5
6
4
4
Figure 2. EVGA nForce 750i SLI Backpanel connectors
1. PS/2 Mouse Port
2. PS/2 Keyboard Port
3. 1394a (Firewire) Port
4. USB 2.0 ports (Six)
5. SPDIF output
6. Audio Port
Blue
2-Channel
4-Channel
Line-In
6-Channel/8-Channel
Line-In
Line-In
Line-Out
Mic In
Green
Pink
Front Speaker Out
Mic In
Front Speaker Out
Mic In
Orange
Black
Center/Subwoofer
Rear Speaker Out
Rear Speaker Out
Grey
7. Lan Port with LEDs to indicate status.
• Yellow/Light Up/Blink = 10 Mbps/Link/Activity
• Yellow and Green/Light Up/Blink = 100 Mbps/link/Activity
• Green/Light Up/Blink = 1000 Mbps/Link/Activity
EVGA
Hardware Installation
This section will guide you through the installation of the motherboard.
The topics covered in this section are:
Preparing the motherboard
Installing the CPU
Installing the CPU fan
Installing the memory
Installing the motherboard
Connecting cables and setting switches
Safety Instructions
To reduce the risk of fire, electric shock, and injury, always follows basic safety precautions.
Remember to remove power from your computer by disconnecting the AC main source before re-
moving or installing any equipment from/to the computer chassis.
Preparing the Motherboard
The motherboard shipped in the box does not contain a CPU or memory. You need to purchase
these components to complete this installation.
7
nForce 750i SLI Motherboard
Installing the CPU
Be very careful when handling the CPU. Make sure not to bend or break any pins on the back. Hold
the processor only by the edges and do not touch the bottom of the processor.
Use the following procedure to install the CPU onto the moth-
erboard.
1. Unhook the socket lever by pushing down and away from
the socket.
2. Lift the load plate. There is a protective socket cover on
the load plate to protect the socket when there is no CPU
installed.
3. Remove the protective socket cover from the load plate.
4. Remove the processor from its protective cover, making
sure you hold it only by the edges.
It is a good idea to save the cover so that whenever you
remove the CPU, you have a safe place to store it.
5. Align the notches in the processor with the notches on the
socket.
6. Lower the processor straight down into the socket with out
tilting or sliding it into the socket.
Align notches with
notches on the CPU
Note: Make sure the CPU is fully seated and level in the
socket.
7. Close the load plate over the CPU and press down while
you close and engage the socket lever.
Installing the CPU Fan
There are many different fan types that can be used with this
motherboard. Follow the instruction that came with you fan as-
sembly. Be sure that the fan orientation is correct for your chas-
sis type and your fan assembly.
EVGA
Installing Memory DIMMs
Your new motherboard has four 1.8V 240-pin slots for DDR2 memory. These slots support 256 MB,
512 MB, 1 GB, and 2 GB DDR2 memory modules. They also support dual channel DDR2 memory
technology up to 10.7GB/s. There must be at least one memory bank populated to ensure normal
operation. Use the following recommendations for installing memory. (See Figure 1 on page 4
for the location of the memory slots.)
One DIMM: Install into slot 0. You can install the DIMM into any slot, however, slot 0 is pre-
ferred.
Two DIMMs: Install into either slots 0 and 1 or 2 and 3. The idea is to not have the DIMMs in ad-
jacent slots.
Four DIMMS: Install into slots 0, 1, 2, and 3.
Use the following procedure to install memory DIMMs. Note that there is only one gap near the
center of the DIMM slot. This slot matches the slot on the memory DIMM to ensure the component
is installed properly.
CPU side
DIMM Slot 0
DIMM Slot 2
DIMM Slot 1
DIMM Slot 3
Card-edge
1. Unlock a DIMM slot by pressing the module clips outward.
2. Align the memory module to the DIMM slot, and insert the module vertically into the DIMM
slot. The plastic clips at both sides of the DIMM slot automatically lock the DIMM into the
connector.
nForce 750i SLI Motherboard
Installing the Motherboard
The sequence of installing the motherboard into the chassis depends on the chassis you are using
and if you are replacing an existing motherboard or working with an empty chassis. Determine if it
would be easier to make all the connections prior to this step or to secure the motherboard and then
make all the connections. It is normally easier to secure the motherboard first.
Use the following procedure to install the I/O shield and secure the motherboard into the chassis.
Note: Be sure that the CPU fan assembly has enough clearance for the chassis covers to lock into place and for
the expansion cards. Also make sure the CPU Fan assembly is aligned with the vents on the covers.
Installing the I/O Shield
The motherboard kit comes with an I/O shield that is used to block radio frequency transmissions,
protects internal components from dust and foreign objects, and promotes correct airflow within the
chassis.
Before installing the motherboard, install the I/O shield from the inside of the chassis. Press the I/O
shield into place and make sure it fits securely. If the I/O shield does not fit into the chassis, you
would need to obtain the proper size from the chassis supplier.
Securing the Motherboard into the Chassis
Most computer chassis have a base with mounting studs or spacers to allow the mother board to
be secured to the chassis and help to prevent short circuits. If there are studs that do not align with
a mounting hole on the motherboard, it is recommended that you remove that stud to prevent the
possibility of a short circuit. In most cases, it is recommended to secure the motherboard using a
minimum of nine (9) spacers.
1. Carefully place the motherboard onto the studs/spacers located inside the chassis.
2. Align the mounting holes with the studs/spacers.
3. Align the connectors to the I/O shield.
4. Ensure that the fan assembly is aligned with the chassis vents according to the fan assembly in-
struction.
5. Secure the motherboard with a minimum of eight-to-ten screws.
EVGA
Connecting Cables and Setting Switches
This section takes you through all the connections and switch settings necessary on the mother-
board. This will include:
Power Connections
24-pin ATX power
8-pin ATX 12V power
Internal Headers
Front panel
IEEE 1394a
USB headers
Audio
Speaker
COM
FDD
IDE
Serial ATA II
Chassis Fans
Rear panel USB 2.0 Adapter
Expansion slots
See Figure 1 on page 4 to locate the connectors referenced in the following procedure.
ꢀ0
nForce 750i SLI Motherboard
Power Connections
24-pin ATX Power
PWR1 is the main power supply connector located along the edge of the board next to the DIMM
slots. Make sure that the power supply cable and pins are properly aligned with the connector on
the motherboard. Firmly plug the power supply cable into the connector and make sure it is secure.
Pin Assignments
v
Connector
Pin
Signal
+3.3V
Pin
13
Signal
+3.3V
1
2
3
4
5
6
7
8
9
+3.3V
GND
14
15
16
17
18
19
20
21
22
23
24
-12V
GND
PS_ON
GND
GND
GND
RSVD
+5V
+5V
GND
+5V
GND
PWROK
+5V_AUX
+12V
+12V
+3.3V
10
11
12
+5V
+5V
GND
8-pin ATX 12V Power
The 8-pin ATX 12V power connection, is used to provide power to the CPU. Align the pins to the
connector and press firmly until seated.
Pin Assignments
v
Connector
Pin
Signal
GND
Pin
Signal
+12V
1
2
3
4
5
6
7
8
GND
GND
GND
+12V
+12V
+12V
ꢀꢀ
EVGA
Connecting IDE Hard Disk Drives
The IDE connector supports Ultra ATA 133/100/66 IDE hard disk drives.
1. Connect the blue connector (the cable end with a single connector) to the motherboard.
2. Connect the black connector (the cable with the two closely spaced black and gray connectors)
to the Ultra ATA master device.
3. Connect the gray connector to a slave device.
If you install two hard disk drives, you must configure the second drive as a slave device by setting
its jumper accordingly. Refer to the hard disk documentation for the jumper settings.
Note: If an ATA-66/100 disk drive and a disk drive using any other IDE transfer protocol are attached to the same
cable, the maximum transfer rate between the drives may be reduced to that of the slowest drive.
Pin Assignments
v
Connector
Pin
Signal
Pin
Signal
1
3
5
7
9
Reset IDE
2
4
6
8
GND
Host Data 7
Host Data 6
Host Data 5
Host Data 8
Host Data 9
Host Data 10
Host Data 11
Host Data 12
Host Data 13
Host Data 14
Host Data 15
—-
Host Data 4 10
Host Data 3 12
Host Data 2 14
Host Data 1 16
Host Data 0 18
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
GND
20
22
24
26
28
30
32
34
36
DRQ 1
GND
Host IOW
Host IOR
IOCHRDY
DACK 1
IRQ 15
GND
GND
Host ALE
Ground
NC
Address 1
Address 0
Ground
Address 2
Chip Select 1
GND
Chip Select 0 38
Activity 40
nForce 750i SLI Motherboard
Connecting Serial ATA Cables
The Serial ATA II connector is used to connect the Serial ATA II device to the motherboard. These
connectors support the thin Serial ATA II cables for primary storage devices. The current Serial
ATA II interface allows up to 300MB/s data transfer rate.
There are four serial ATA connectors on the motherboard that support RAID 0,RAID 1, RAID 5,
RAID 0+1 and JBOD configurations.
Pin Assignments
v
Connector
Pin
Signal
GND
1
2
3
4
5
6
7
TX+
TX-
GND
RX+
RX-
SATA B1
SATA B0
GND
SATA A0 (bottom)
SATA A1 (top)
Connecting Floppy Disk Drive
The motherboard supports a standard 360K, 720K, 1.2M, 1.44m, and a 2.88M floppy disk drive (FDD).
Pin Assignments
v
Connector
Pin
Signal
GND
Pin
Signal
1
3
5
7
9
2
4
6
8
Drive Density Election
NC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
DSI
Index
10
12
14
16
18
20
22
24
26
28
30
32
34
Motor Enable 0
DSB
11
13
15
17
19
21
23
25
27
29
31
33
Drive Select 0
Motor Enable 1
Direction
Step
Write Data
Write Gate
Track 0
Write Protect
Read Data
Side 1 Select
Diskette Change
GND
NC
EVGA
Connecting Internal Headers
Front Panel Header
The front panel header on this motherboard is one connector used to connect the following four
cables. (see Table 2 for pin definitions):
PWRLED
Attach the front panel power LED cable to these two
pins of the connector.
The Power LED indicates the system’s status. When the
system is in S0 status, the LED is on. When the system
is in S4, S5 status, the LED is off. When the system is in
S1, S3 status, the LED is blink.
Note: Some chassis do not have all four cables. Be sure to match
the name on the connectors to the corresponding pins.
PWRSW
Attach the power button cable from the case to these
two pins. Pressing the power button on the front panel
turns the system on and off rather than using the power
supply button.
HD_LED
Attach the hard disk drive indicator LED cable to these
two pins. The HDD indicator LED indicates the activity
status of the hard disks.
RESET
Pin Assignments
v
Attach the Reset switch cable from the front panel of
Connector
Pin
Signal
HD_PWR
the case to these two pins. The system restarts when the
1
HD_LED
RESET switch is pressed.
3
HD ACT*
PWR LED
STBY LED
GND
2
PWRLED
RESET
4
5
7
RST BTN
PWR BTN
GND
6
PWRSW
8
No Connect
Empty
9
+5V
10
Empty
nForce 750i SLI Motherboard
IEEE 1394a
The IEEE 1394 expansion cable bracket is provided in the box but if you do not require the addi-
tional external connections, you do not need to install it.
1. Secure the bracket to either the front or rear panel of your chassis (not all chassis are equipped
with the front panel option).
2. Connect the two ends of the cables to the IEEE 1394 connectors on the motherboard.
Pin Assignments
v
Connector
Pin
Signal
TPA+
Pin
Signal
TPA-
1
2
3
5
7
9
GND
4
6
8
GND
TPB-
+12V
TPB+
+12V
Empty
10 GND
USB Headers
This motherboard contains six (6) USB 2.0 ports that are exposed on the rear panel of the chassis
(Figure 2). The motherboard also contains one 10-pin internal header connectors onboard that can
be used to connect an optional external bracket containing four (2) more USB 2.0 ports.
1. Secure the bracket to either the front or rear panel of your chassis (not all chassis are equipped
with the front panel option).
2. Connect the two ends of the cables to the USB 2.0 headers on the motherboard.
Pin Assignments
v
Connector
Pin
Signal
5V_DUAL
Data-
Pin
Signal
5V_DUAL
Data-
1
2
3
5
7
9
4
6
8
Data+
GND
Data+
GND
Empty
10 No Connect
EVGA
Audio
The audio connector supports HD audio standard and provides two kinds of audio output choices:
the Front Audio, the Rear Audio. The front Audio supports re-tasking function.
Pin Assignments
v
Connector
Pin
Signal
PORT1_L
Pin
Signal
AUD_GND
1
2
3
5
7
9
PORT1_R
PORT2_R
SENSE_SEND
PORT2_L
4
6
8
PRECENCE_J
SENSE1_RETURN
Empty
10 SENSE2_RETURN
COM1
The motherboard kit provides an additional serial COM header for your machine. Connect one side
of a switching cable to the header and then attach the serial COM device to the other side of the
cable.
Pin Assignments
v
Connector
Pin
Signal
Pin
Signal
1
DCD (Data Carrier Detect)
RXD (Receive Data)
TXD (Transmit Data)
2
DSR (Data Set Ready)
RTS (Request to Send)
CTS (Clear to Send)
RI (Ring Indicator)
3
5
7
9
4
6
DTR (Data Terminal Ready) 8
GND
10 No Connect
nForce 750i SLI Motherboard
Fan Connections
There are six fan connections on the motherboard. The fan speed can be detected and viewed in the
PC Health Status section of the CMOS Setup. The fans are automatically turned off after the system
enters S3, S4 and S5 mode.
CPU FAN
CPU FAN:
Connect the CPU fan to this connrctor.
The CPU fan cable can be either a 3-pin or a 4-pin
NFORCE FAN
connector. Connect a 3-pin connector to pins 1, 2, and 3
on the motherboard connector.
NFORCE FAN:
CHASSIS
FAN2
Install the fan over the nForce 750i SLI SPP to draw heat
from the MCP. The fans plug into a 3-pin connector.
Others FAN:
There are four more fan connectors on the motherboard.
For this installation, these may not be used.
CHASSIS
FAN
SYS FAN
AUX FAN
Pin Assignments
v
Connector
Pin
Signal
CONTROL
SENSE
1
2
3
4
+12V
GND
Connector
Pin
Signal
SENSE
+12V
1
2
3
+12V
EVGA
Expansion Slots
The EVGA nForce 750i SLI motherboard contains six expansion slots, three PCI Express slots and
three PCI slots. For a full list of PCI Express x16 graphics card supported by this motherboard, go to
PCI Slots
The three PCI slots support many expansion cards
such as a LAN card, USB card, SCSI card and other
cards that comply with PCI specifications. When
installing a card into the PCI slot, be sure that it is
fully seated. Secure the card’s metal bracket to the
chassis back panel with the screw used to hold the
blank cover.
PCIe x1 Slot
PCI Express x1 Slot
PCIe x16 Slot
There is one PCI Express x1 slot that is designed to
PCI Slot
accommodate less bandwidth-intensive cards, such
PCIe x16 Slot
as a modem or LAN card. The x1 slot provides 250
PCI Slot
MB/sec bandwidth.
PCI Express x16 Slots
These two PCI Express x16 slots are reserved for graphics or video cards. The design of this mother-
board supports two PCI-Express graphics cards with x8 bandwith using NVIDIA’s SLI technology.
When installing a PCI Express x16 card, be sure the retention clip snaps and locks the card into
place. If the card is not seated properly, it could cause a short across the pins. Secure the card’s
metal bracket to the chassis back panel with the screw used to hold the blank cover.
For Single Mode, insert the VGA card into the "PCIE X16_1" VGA slot. (labeled on the board).
The “PCIE X16_2” VGA slot will become inactive.
For SLI Mode, an SLI kit must be installed to the golden fingers on the top of both VGA
cards in order to link the cards together. (The kit is purchased separately from the mother-
board).
nForce 750i SLI Motherboard
Onboard Buttons
These onboard buttons include RESET, POWER and CMOS , lets you turn on/off the system easily,
and convenient for clear CMOS
RESET and POWER Button:
These onboard buttons lets you turn on/off the
system easily, it is especially handy for debugging or
testing the system.
CMOS Button:
The motherboard uses the CMOS RAM to store all
the set parameters. The CMOS can be cleared by
press the CMOS button.
RESET
Button
POWER
Button
CMOS
Button
Post Port Debug LED
Provides two-digit POST code to show why the system
fail to boot. Allows quick and easy optimization.
nForce 750i SLI Motherboard
Configuring the BIOS
This section discusses how to change the system settings through the BIOS Setup menus. Detailed
descriptions of the BIOS parameters are also provided.
This section includes the following information:
Enter BIOS Setup
Main Menu
Standard CMOS Features
Advanced BIOS Features
Advanced Chipset Features
Integrated Peripherals
Power Management Setup
PnP/PCI Configurations
PC Health Status
Frequency/Voltage Control
Enter BIOS Setup
The BIOS is the communication bridge between hardware and software. Correctly setting the BIOS
parameters is critical to maintain optimal system performance.
Use the following procedure to verify/change BIOS settings.
1. Power on the computer.
2. Press the Del key when the following message briefly displays at the bottom of the screen
during the Power On Self Test (POST).
Press F1 to continue, DEL to enter Setup.
Pressing Del takes you to the Phoenix-Award BIOS CMOS Setup Utility.
Note: It is strongly recommended that you do not change the default BIOS settings.
Changing some settings could damage your computer.
EVGA
Main Menu
The main menu allows you to select from the list of setup functions and two exit choices. Use the
Page Up and Page Down keys to scroll through the options or press Enter to display the associated
submenu. Use the arrow keys to position the selector in the option you choose. To go back to the
previous menu, press Esc.
Phoenix – AwardBIOS CMOS Setup Utility
Frequency/Voltage Control
Load Fail Safe Defaults
Load Optimized Defaults
Set Supervisor Password
Set User Password
Standard CMOS Features
Advanced BIOS Features
Advanced Chipset Features
Integrated Peripherals
Power Management Setup
PnP/PCI Configurations
PC Health Status
Save & Exit Setup
Exit Without Saving
: Select Item
Esc : Quit
F10 : Save & Exit Setup
Time, Date, Hard Disk Type..,
Standard CMOS Features
Use this menu to set up the basic system configuration.
Advanced BIOS Features
Use this menu to set up the advanced system features and boot sequence.
Advanced Chipset Features
Use this menu to optimize system performance and configure clocks, voltages, memory timings,
and more.
Integrated Peripherals
Use this menu to set up onboard peripherals such as IDE, RAID, USB, LAN, and MAC control.
Power Management Setup
Use this menu to configure power management, power on, and sleep features.
PnP/PCI Configurations
Use this menu to modify the system’s Plug-and-Play and PCI configurations.
Frequency/Voltage Control
Use this menu to adjust various parameters to obtain improved performance for overclocking.
nForce 750i SLI Motherboard
The following items on the CMOS Setup Utility main menu are commands rather than submenus:
Load Fail Safe Defaults
Load default system settings.
Load Optimized Defaults
Load default system settings.
Set Supervisor Password/Set User Password
Use this command to set, change, and disable the password used to access the BIOS menu.
Save & Exit Setup
Use this command to save settings to CMOS and exit setup.
Exit Without Saving
Use this command to abandon all setting changes and exit setup.
Standard CMOS Features
The Standard CMOS Features menu is used to configure the standard CMOS information,
such as the date, time, HDD model, and so on. Use the Page Up and Page Down keys to scroll
through the options or press Enter to display the sub-menu. Use the
arrow keys to position
the selector in the option you choose. To go back to the previous menu, press Esc.
The information shown in Item Help corresponds to the option highlighted.
Phoenix – AwardBIOS CMOS Setup Utility
Standard CMOS Features
Date (mm:dd:yy)
Time (hh:mm:ss)
Sat, Jul 01 2006
12 : 48: 23
Item Help
IDE Channel 0 Master
IDE Channel 0 Slave
SATA Channel 1 (A0) Master
SATA Channel 2 (A1) Master
SATA Channel 3 (B0) Master
SATA Channel 4 (C1) Master
[None]
[None]
[None]
[None]
[None]
[None]
Main Level
Change the day, month,
year and century
Drive A
Halt On
[1.44, 3.5 in.]
[All , But Keyboard]
Base Memory
Extended Memory
Total Memory
640K
1047552K
1048576K
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
EVGA
Advanced BIOS Features
Access the Advanced BIOS Features menu from the CMOS Utility Setup screen. Use the Page
Up and Page Down keys to scroll through the options or press Enter to display the sub-menu.
Use the
arrow keys to position the selector in the option you choose. To go back to the
previous menu, press Esc.
Phoenix – AwardBIOS CMOS Setup Utility
Advanced BIOS Features
CPU Features
[Press Enter]
Item Help
Removable Device Priority
Hard Disk Boot Priority
[Press Enter]
[Press Enter]
[Enabled]
[Removable]
[CDROM]
[Hard Disk]
[Enabled]
[On]
Main Level
Quick Power On Self Test
First Boot Device
Select Removable Boot
Device Priority
Second Boot Device
Third Boot Device
Boot Other Device
Boot Up NumLock Status
Security Option
[Setup]
APIC Mode
[Enabled]
[1.4]
MPS Version Control For OS
Full Screen LOGO Show
[Disabled]
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
CPU Features
This field is available only for Pentium® CPU Features.
Intel SpeedStep
This function allows you to enable or disable Intel SpeedStep feature.
Limit CPUID Maxval
Use this function to enable the set limit of the CPUID MaxVal to 3. Set to Disable for Win XP.
C1E Function
Enabled, this function reduces the CPU power consumption when the CPU is idle. Idle occurs
when the operating system issues a halt instruction.
Execute Disable Bit
When this function is disabled, it forces the XD feature flag to always return to zero (0).
Virtualization Technology
When this function is enabled, it allows a VMM to utilize the additional hardware capabilities
provided by Intel Virtualization Technology.
Removable Device Priority
Use this option to select the priority for removable device startup. Press Enter to see the list of
removable devices in your system. Use the arrow keys to go to the various devices. Then use
nForce 750i SLI Motherboard
the + or – keys to move the device priority up or down in the list. To go back to the previous
menu, press Esc.
The Options are: Floppy Disk, LS120, ZIP100, USB-FDD0, USB-FDD1, USB-ZIP0, USB-ZIP1.
Hard Disk Boot Priority
Use this option to select the priority for HDD startup. Press Enter to see the list of bootable
devices in your system. Use the arrow keys to go to the various devices. Then use the + or –
keys to move the device priority up or down in the list. To go back to the previous menu, press
Esc.
The options are Pri. Master, Pri. Slave, Sec. Master, Sec. Slave, USBHDD0, USBHDD1,
USBHDD2, Bootable Add-in cards
Quick Power On Self Test
Enabling this option allows the system to skip certain test while booting, which reduces the time
needed to boot the system. Use the Page Up and Page Down keys to toggle between Enable and
Disable.
First/Second/Third Boot Device
Use this option to set the priority sequence of the devices booted at power on. Use the Page Up
and Page Down keys to scroll through the options or press Enter to display the sub-menu. Use
the arrow keys to position the selector in the option you choose.
The options are Floppy, LS120, Hard Disk, CDROM, ZIP100, USB-FDD, USB-ZIP, USB-CDROM,
Legacy LAN, Disabled.
Boot Other Device
With the option set to Enable, the system boots from some other device if the first/second/third
boot devices fail.
Boot Up NumLock Status
This option allows you to select the power-on state of NumLock. Select On to activate the
keyboard NumLock when the system is started. Select Off to disable the NumLock key.
Security Option
The Security Options allows you to require a password every time the system boots or only
when you enter setup. Select Setup to require a password to gain access to the CMOS Setup
screen. Select System to require a password to access the CMOS Setup screen and when the
system boots.
APIC Mode
Use this function to enable or disable the Advanced Programmable Interrupt Controller (APIC).
If you disable this option, you also disable the MPS Version Control for OS option.
EVGA
MPS Version Control For OS
Use this function to select the Multi-Processor Specification (MPS) version that BIOS passes to
the operating system. Use the Page Up and Page Down keys to scroll through the options.
Full Screen LOGO Show
This option allows you to enable or disable the display of the full-screen logo when the system
boots. Use the Page Up and Page Down keys to toggle between Enable and Disable
Advanced Chipset Features
Select Advanced Chipset Features from the CMOS Setup Utility menu and press Enter to
display the functions of the Advanced Chipset Functions menu.
Phoenix – AwardBIOS CMOS Setup Utility
Advanced Chipset Features
Spread Spectrum Control
System BIOS Cacheable
[Press Enter]
[Disabled]
Item Help
Main Level
Voltage control
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
Spread Spectrum Control
CPU Spread Spectrum
This option reduces the EMI generated by the CPU. The options are Disabled, Center Spread.
SATA Spread Spectrum
This option reduces the EMI generated by the S-ATA. The options are Disabled, Enabled.
LDT Spread Spectrum
This option reduces the EMI generated by the LDT. The options are Disabled, Down Spread
System BIOS Cacheable
This item allows the system to be cached in memory for faster execution. The options are
Disabled, Enabled.
nForce 750i SLI Motherboard
Integrated Peripherals Menu
Select Integrated Peripherals from the CMOS Setup Utility menu and press Enter to display the
Integrated Peripherals menu.
Phoenix – AwardBIOS CMOS Setup Utility
Integrated Peripherals
IDE Function Setup
RAID Cofig
OnChip USB
USB Keyboard/Storage Support
USB Mouse Support
USB Park Mode
[Press Enter]
[Press Enter]
[V1.1+V2.0]
[Enabled]
[Disabled]
[Enabled]
[ISO Queue]
[ISO Queue]
[non-ISO Queue]
[Auto]
Item Help
Main Level
USB TD Reads
USB Periodic Data Reads
USB Asyn Data Reads
HD Audio
MAC Lan
[Auto]
MAC Media Interface
IEEE1394 controller
IDE HDD Black Mode
Onboard FDC Controller
Onbaord Serial Port 1
[Pin Strap]
[Auto]
[Enabled]
[Enabled]
[3F8/IRQ4]
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
IDE Function Setup
Press Enter to display the IDE Function Setup menu.
OnChip IDE Channel0
Primary Master PIO
Primary Slave PIO
[Enabled]
[Auto]
[Auto]
Primary Master UDMA
Primary Slave UDMA
IDE DMA transfer access
Serial-ATA Controller
IDE Prefetch Mode
[Auto]
[Auto]
[Enabled]
[All Enabled]
[Enabled]
OnChip IDE Channel0
Use this function to enable or disable the onchip IDE Channel0. When disabled, the Primary
Master/Slave functions are changed to Auto and cannot be changed.
Primary Master/Slave PIO
When OnChip IDE Channel0 is set to [Enabled], you can select a mode for the primary Master
and Slave PIO. Select from Auto, or Mode 1 through Mode 4.
Primary Master/Slave UDMA
When OnChip IDE Channel0 is set to [Enabled], you can disable the primary Master and Slave
UDMA or set it to [Auto].
EVGA
IDE DMA transfer access
Use this function to enable or disable IDE DMA transfer access.
Serial-ATA Controller
This function allows you to enable specific SATA controllers, enable all controllers, or disable all
controllers. The options available are [SATA-0], [SATA-0+1], [Enable All], and [Disabled].
IDE Prefetch Mode
Use this function to enable or disable the IDE Prefetch mode.
RAID Config
Press Enter to display the RAID Config menu.
RAID Enable
[Enabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
SATA 0 Primary
SATA 0 Secondary
SATA 1 Primary
SATA 1 Secondary
RAID
RAID
RAID
RAID
RAID Enable
Use this function to enable or disable RAID. When RAID is set to [Disabled], all SATA functions
are changed to Disabled and cannot be changed.
SATA x Primary/Secondary
When RAID Enable is set to [Enabled], you can enable or disable the various SATA functions.
OnChip USB
Use this function to enable specific versions of the USB or disable the onchip USB. When the
onchip USB is set to [Disabled], the keyboard and mouse support functions are set to Enabled
and cannot be changed. Versions that can be selected are
[V1.1+V2.0] or [V1.1].
USB Keyboard/Mouse Support
Use these function to enable or disable the onchip WSB support of the keyboard and/or mouse.
USB Park Mode
The options are Enabled, Disabled.
USB TD Reads
The options are non-ISO Queue, ISO Queue.
USB Periodic Data Reads
The options are non-ISO Queue, ISO Queue.
USB Asyn Data Reads
The options are non-ISO Queue, ISO Queue.
nForce 750i SLI Motherboard
HD Audio
This function on the Integrated Peripherals menu allows you to enable or disable the integrated
high definition audio.
MAC LAN
Use these functions to set the MAC LAN to Auto or disable their functions.
IEEE1394 controller
This function on the Integrated Peripherals menu allows you to enable or disable the IEEE1394
(Firewire) interface.
IDE HDD Block Mode
Using this function on the Integrated Peripherals menu allows your IDE hard drive needs to
support block mode. Select [Enabled] to automatically detect the optimal number of block read/
writes per sector the drive can support.
Select [Disabled] if your drive does not support block mode.
Onboard FDC Controller
This function on the Integrated Peripherals menu allows you to enable or disable the onboard
Floppy Disk Controller function.
Onboard Serial Port 1
This function on the Integrated Peripherals menu allows you to select the onboard serial port 1
function. Options are [3F8/IRQ4], [2E8/IRQ3], [3E8/IRQ4], [Auto], and [Disabled].
EVGA
Power Management Setup
Select Power Management Setup from the CMOS Setup Utility menu and press Enter to display
the Power Management Setup menu.
Phoenix – AwardBIOS CMOS Setup Utility
Power Management Setup
ACPI function
[Enabled]
[S1&S3]
Item Help
APCI Suspend Type
Power Management
Video Off Mehtod
[User Define]
[DPMS Support]
[Disabled]
[Instant-Off]
[Disabled]
[Disabled]
[Disabled]
0
Main Level
HDD Power Down
Soft-Off by PBTN
WOL(PME#) From Soft-Off
WOR(RI#) From Soft-Off
Power-on by Alarm
x Day of Month Alarm
x Time (hh:mm:ss) Alarm
HPET Support
0 : 0 : 0
[Enabled]
[BUTTON ONLY]
Enter
POWER ON Function
x KB Power ON Password
x Hot Key Power On
PWRON After PWR-Fail
Ctrl-F1
[Former-Sts]
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
ACPI Function
This function on the Power Management Setup menu allows you to enable or disable the ACPI
function.
ACPI Suspend Type
This function on the Power Management Setup menu allows you to select an ACPI Suspend
Type. Types to select from are [S1&S3], [S1(POS)], and [S3(STR)].
Power Management
Use this to select your Power Management selection. The default is User define.
Max. saving: Maximum power savings. Inactivity period is 1 minute in each mode.
Min. saving: Minimum power savings. Inactivity period is 1 hour in each mode.
User define: Allows user to define PM Timers parameters to control power saving mode.
HDD Power Down
Powers down the hard disk drive after a preset period of system inactivity.
The options are Disabled, 1min ~ 15min.
Soft-Off by PBNT
This function on the Power Management Setup menu allows you to set Soft-Off by PBNT to
[Instant-Off] or [Delay 4 Sec].
nForce 750i SLI Motherboard
WOL(PME#) From Soft-Off
This function on the Power Management Setup menu allows you to enable or disable
WOL(PMW#) from soft-off.
WOR(RI#) From Soft-Off
This function on the Power Management Setup menu allows you to enable or disable WOR(RI#)
from soft-off.
Power On by Alarm
This function on the Power Management Setup menu allows you to enable or disable the Power-
on by alarm function. Set to [Disable] to prevent poweron by alarm. When set to [Enable], you
can manually put in the day of the month and the time of the alarm.
Power-on by Alarm
Day of Month Alarm
Time (hh:mm:ss) Alarm
[Disabled]
[ 0]
[0 : 0 : 0]
To enter a day or time, use the Page Up and Page Down keys to scroll through numbers or enter
the number using the keyboard number or the + and – keys.
HPET Support
This function allows you to enable or disable the High Precision Even Timer (HPET). When
Enabled, HPET is used as the timing hardware for multimedia and other time-sensitive
application. When HPET is Disabled, the APIC timer is used.
POWER ON Function
This function on the Power Management Setup menu allows you to define the power-on
function. Options for this function are:
BUTTON ONLY
Keyboard 98
Password
When [Password] is selected, the KB Power ON Password function is enabled so that you
must enter a password.
POWER ON Function
KB Power ON Password [Enter]
x Hot Key Power On Ctrl-F1
[Password]
Hot Key Power On
When [Hot Key] is selected, the Hot key Power On function is enabled so that you must select
a keyboard key as the hot key. To select a hot key use Ctrl+F1 though Ctrl+F12
POWER ON Function
x KB Power ON Password Enter
Hot Key Power On [Ctrl-F1]
[Hot key]
EVGA
Mouse Left
Mouse Right
Any Key
PWRON After PWR-Fail
This item enables your computer to automatically restart or return to its last operating status after
power returns from a power failure.
Off: The system stays off after a power failure.
On: The system stays on after a power failure.
PnP/PCI Configuration Menu
Select PnP/PCI Configuration from the CMOS Setup Utility menu and press Enter to display the
PnP/PCI Configuration menu.
Phoenix – AwardBIOS CMOS Setup Utility
PnP/PCI Configuration
Init Display First
[PCI Slot]
[Disabled]
Item Help
Reset Configuration Data
Main Level
Resources Controlled By
x IRQ Resources
[Auto(ESCD)]
Press Enter
PCI/VGA Express Snoop
[Disabled]
** PCI Express relative items **
Maximum Payload Size
[4096]
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
Init Display First
This function on the PnP/PCI Configuration menu allows you to define if the initial display is in the
PCI slot or in the PCI Express slot. Options are [PCI Slot] and [PCIEx].
Reset Configuration Data
This function on the PnP/PCI Configuration menu allows you to enable or disable the resetting of
Extended System Configuration Data (ESCD) when you exit Setup. Set this to [Enabled] if you have
installed a new add-on and the system reconfiguration has caused a serious conflict that prevents
the OS from booting. The default setting is [Disabled].
nForce 750i SLI Motherboard
Resources Controlled By
This function on the PnP/PCI Configuration menu allows you to define if the BIOS can
automatically configure all the boot and plug-and-play compatible devices or if you can manually
select IRQ, DMA, and memory base address fields. Select [Auto(ESCD)] if you want the BIOS to
automatically populate these fields. If you select [Manual] so you can assign the resources, IRQ
Resources is enabled for input.
IRQ Resources
To enable this field for input, set Resources Controlled By to [Manual]. With this field enabled, press
Enter to see options.
IRQ-5 assigned to
IRQ-9 assigned to
IRQ-10 assigned to
IRQ-11 assigned to
IRQ-14 assigned to
IRQ-15 assigned to
[PCI Device]
[Reserved]
[PCI Device]
[PCI Device]
[PCI Device]
[PCI Device]
Use Legacy ISA for devices compliant with the original PC AT Bus specification. Use PCI/ISA
PnP for devices compliant with the plug-and-play standard, whether designed for PCI or ISA Bus
architecture.
PCI/VGA Palette Snoop
This function on the PnP/PCI Configuration menu allows you to enable or disable the Palette Snoop
function.
Maximum Payload Size
This function on the PnP/PCI Configuration menu allows you to set the maximum TLP payload
size (in bytes) for the PCI Express devices. Use the Page Up and Page Down keys to scroll through
sizes or enter the number using the keyboard numbers or use the + and – keys to go up and down
the list of sizes.
EVGA
PC Health Status
Select PC Health Status from the CMOS Setup Utility menu and press Enter to display the PC
Health Status menu.
Phoenix – AwardBIOS CMOS Setup Utility
PC Health Status
Dynamic Fan Control
CPU
[Press Enter]
47ºC/ 117ºF
Item Help
Main Level
CPU VID
CPU FSB
Memory
+3.3V
1.28V
1.19V
1.90V
3.26V
3.26V
12.08V
4.93V
3.00V
+3.3V Dual
+12V
+5V
+Vbat
CPU Fan Speed
4272 RPM
4891 RPM
5250 RPM
0 RPM
Aux Fan Speed
nForce Fan Speed
Chassis Fan2 Speed 0 RPM
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
All of the values shown in Blue are dynamic and change as the speed and voltages of the various
components change with system usage.
Dynamic Fan Control
How effective Smart CPU Fan is will depend on fan design. Most fans have built-in thermistor and
may self adjust its speed.
CPU Fan Speed Control
[SmartFan]
[SmartFan]
If temp > 70oC, Set Fan Speed 100%
If temp < 30oC, Set Fan Speed
1%
x Manual Fan Speed,
%
100
Chassis Fan Speed Control
If temp > 60oC, Set Fan Speed 100%
If temp < 30oC, Set Fan Speed
1%
x Manual Fan Speed, 100
%
nForce Fan Speed Control
x Manual Fan Speed,
[Auto]
100%
%
nForce 750i SLI Motherboard
Frequency/Voltage Control
Select Frequency/Voltage Control from the CMOS Setup Utility menu and press Enter to display
the Frequency/Voltage Control menu.
Phoenix – AwardBIOS CMOS Setup Utility
Frequency/Voltage Control
System Clocks
[Press Enter]
[Press Enter]
[Press Enter]
[12 X]
Item Help
FSB & Memory Config
System Voltages
CPU Clock Ratio
LDT Frequency
Main Level
Voltage control
[5 X]
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
CPU Clock Ratio
This value changes the CPU Frequency value depending on the value you choose. Use the Page Up
and Page Down keys to scroll through the options.
The options are from 6 X through 60 X.
LDT Frequency
Use this item to select LDT Frequency.
System Clocks
From this menu, display the frequency settings.
Parameters
Settings Current Value
**Frequency Settings**
Current CPU Freq, MHz
FSB Clock, MHz
2400.0
800.0
2400.0
800.0
Current CPU Freq, MHz
This value is set by the CPU Multiplier (value cannot be changed by the user).
FSB Clock, MHz
This value is set by the system (value cannot be changed by the user).
EVGA
FSB & Memroy Config
From this menu, you are able to specify frequency settings and memroy settings.
Phoenix – AwardBIOS CMOS Setup Utility
FSB & Memory Config
Parameters
Settings
Current Value
Item Help
Current CPU Freq, MHz
CPU Multiplier
2400.0
[12X]
[Auto]
Auto
2400.0
12X
Main Level
FSB - Memroy Clock Mode
x FSB - Memory Ratio
x FSB (QDR), MHz
“CPUOC MAX” realizes
the complete optimized
memory settings when
SLI-Ready memory is
installed
Auto
800.0
800.0
Actual FSB (QDR), MHz
x MEM (DDR), MHz
800.0
Auto
Optimized memory
settings by allowing
X% CPU overclocking
Actual MEM (DDR), MHz
800.0
Memory Timing Setting
[Press Enter]
CPU overclocking may
require manual
ECC Control
[Disabled]
[Disabled]
[Disabled]
overvolting of the CPU
to improve system
stability
ECC Uncorrectable
ECC Correctable
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
FSB - Memroy Clock Mode
Use the Page Up and Page Down keys to scroll through the FSB and Memory Clock Mode
options. The options are:
Auto
This is the optimal setting since it sets the FSB and memory speeds automatically.
Linked
When Link is selected, FSB (QDR), MHz is changed to editable and the FSB speed can be
entered manually. As the FSB speed is changed, CPU Freq, MHz changes proportionally.
CPU Freq, MHz
2400.0
11X
2400.0
11X
CPU Multiplier
FSB – Memory Clock Mode
FSB (QDR), MHz
[Linked]
[1067]
1066.7
1066.7
800.0
Actual FSB (QDR), MHz
x MEM (DDR), MHz
Actual MEM (DDR), MHz
Auto
800.0
Unlinked
When Unlink is selected, FSB (QDR), MHz and MEM (DDR), MHz are changed to editable
and the FSB and memory speeds can be entered manually. As the FSB speed is changed, CPU
Freq, MHz changes proportionally.
FSB – Memory Clock Mode
FSB (QDR), MHz
[unlinked]
[1067]
1066.7
800.0
Actual FSB (QDR), MHz
MEM (DDR), MHz
1066.7
[1067]
Actual MEM (DDR), MHz
800.0
nForce 750i SLI Motherboard
FSB (QDR), MHz
Use the + or – keys to scroll through new values for the CPU FSB frequency or type in a new
value. Note that the Actual FSB (QDR) reflects the actual frequency that takes effect on a reboot.
MEM (DDR), MHz
Use the + or – keys to scroll through new values for the memory frequency or type in a new
value. Note that the Actual MEM (DDR) reflects the actual frequency that takes effect when the
system reboots.
Memory Timing Setting
Press Enter to display the Memory Timing Setting menu. Use this menu to set optimal timings
or to manually enter timings.
Phoenix – AwardBIOS CMOS Setup Utility
Memory Timing Setting
Parameters
Settings
[Optimal]
Auto(5)
Auto(5)
Auto(5)
Current Value
Item Help
Memory Timing Setting
x tCL (CAS Latency)
x tRDC
5
5
5
Main Level
Select [Expert] to
x tRP
enter timings manually
x tRAS
Auto(15) 15
Auto(2T) 2T
x Command Per Clock (CDM)
** Advanced Memory Settings **
x tRRD
x tRC
Auto(3)
3
Auto(23) 23
x tWR
x tWTR
x tREF
Auto(5)
Auto(9)
Auto
5
9
7.0uS
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
Optimal
Use the Page Up and Page Down keys to select Optimal. Optimal prohibits you from
manually setting any timing. All timing is set for optimal performance.
Expert
Use the Page Up and Page Down keys to select Expert. When Expert is selected, all timing
categories are enabled for manual input. Note that you should set the value to Optimal to use
the manufacturers’ recommended values.
tCL: CAS# latency (options are 1 through 6).
w
w
tRDC: RAS#-to-CAS# Delay for Read/Write commands to the same bank (options are 1
through 7).
tRP: Row Precharge time. This is the Precharge-to-Active or Autoto-Refresh of the same
bank (options are 1 through 7).
w
w
tRAS: This is the minimum RAS# active time (options are 1 through 31).
EVGA
Command Per Clock: This is the command timing setting on a per clock unit basis (options
are 1T and 2T).
w
tRRD: RAS#-to-RAS# delay of different banks (options are 1 through 15).
tRC: RAS#-to-RAS# or auto refresh time of the same bank (options are 1 through 31).
tWR: The Write recovery time (options are 2 through 7).
w
w
w
w
tWTR: This is the minimum write-to-read delay with the same chip selected (options are 1
through 10).
tREF: This is the DRAM refresh rate (options are Auto, 7.8uS, and 3.9uS).
w
ECC Control
Disabled
System Voltages
Select System Voltages from the Frequency/Voltage Control menu and press Enter to display
the System Voltages menu.
Phoenix – AwardBIOS CMOS Setup Utility
System Voltages
Parameters
CPU Core
Settings
[Auto]
[Auto]
[Auto]
[Auto]
[Auto]
Current Value
1.28
Item Help
CPU FSB
1.20V
Main Level
Memory
1.900V
1.30V
Voltage level for CPU
Core (CPU VID)
nForce SPP
NF200 Voltage Level
1.20V
GTLVREF Lane 0
GTLVREF Lane 1
GTLVREF Lane 2
GTLVREF Lane 3
[Auto]
[Auto]
[Auto]
[Auto]
+00mv
+00mv
+00mv
+00mv
Users should exercise caution when over-voltaging,
,as it can cause system instability or even void
warranties and damage components.
:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F7:Defaults
CPU Core
Use the Page Up and Page Down keys to scroll through the voltages or select [Auto] to
automatically set the voltage level for the CPU Core.
CPU FSB
Use the Page Up and Page Down keys to scroll through the voltages or select [Auto] to
automatically set the voltage level for the CPU FSB.
Memory
This function defines the voltage level for the DRAM. Use the Page Up and Page Down keys to
select a voltage or select [Auto] to automatically set the voltage.
nForce 750i SLI Motherboard
nForce SPP
This function defines the core voltage level for the NVIDIA nForce SPP chip. Use the Page
Up and Page Down keys to select a voltage (1.20V, 1.30V, 1.40V, 1.50V) or select [Auto] to
automatically set the voltage.
NF200 Voltage Level
This function defines the core voltage level for the NVIDIA nForce NF200 chip. Use the Page Up
and Page Down keys to select a voltage or select [Auto] to automatically set the voltage.
GTLVREF Lane 0
This function defines the voltage level for GTLVREF Lane 0. Use the Page Up and Page Down
keys to select a voltage or select [Auto] to automatically set the voltage.
GTLVREF Lane 1
This function defines the voltage level for GTLVREF Lane 1. Use the Page Up and Page Down
keys to select a voltage or select [Auto] to automatically set the voltage.
GTLVREF Lane 2
This function defines the voltage level for GTLVREF Lane 2. Use the Page Up and Page Down
keys to select a voltage or select [Auto] to automatically set the voltage.
GTLVREF Lane 3
This function defines the voltage level for GTLVREF Lane 3. Use the Page Up and Page Down
keys to select a voltage or select [Auto]to automatically set the voltage.
Installing Drivers and
Software
Note: It is important to remember that before installing the driver CD that is shipped
in the kit, you need to load your operating system. The motherboard supports
Windows XP 32bit and 64bit and is Vista-capable.
The kit comes with a CD that contains drivers and additional NVIDIA
software.
The CD that has been shipped with your EVGA motherboard contains the
following software and drivers:
‰ NVIDIA nForce motherboard drivers
‰ Audio drivers
‰ RAID drivers
‰ Adobe Acrobat Reader
‰ User’s Manual
Driver Installation
3. Insert the EVGA nForce 780i SLI installation CD for the motherboard
included in the kit.
4. The CD will autorun, install the drivers and utilities listed on the install
screen.
If the CD does not run, go to My Computer and click on the CD to open.
Appendix A.
POST Codes for Tritium Platform
This section provides the Award POST Codes (Table 6) and the NVMM POST
Codes (Table 7) for Tritium platforms during system boot up.
Table 1.
Award POST Code
Award POST Codes
Code
Name
Description
01
Reserved
02
Jumps to E000
segment
Execution of POST routines in E000
Init Early Initialized the super IO
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
Early SuperIO
Reserved
Blank video
Reserved
Reset Video controller
Init KBC
Keyboard controller init
Test the Keyboard
KB test
Reserved
Mouse Init
Reserved
Initialized the mouse
Reserved
Reserved
CheckSum Check
Reserved
Check the integrity of the ROM,BIOS and message
Check Flash type and copy flash write/erase routines
Autodetect
EEPROM
11
Reserved
Using NVIDIA Software
Award POST Codes
Code
Name
Description
12
Test CMOS
Test and Reset CMOS
13
14
15
16
17
18
19
1A
1B
Reserved
Load Chipset
Reserved
Init Clock
Reserved
Init CPU
Load Chipset Defaults
Initialize onboard clock generator
CPU ID and initialize L1/L2 cache
Reserved
Reserved
Setup Interrupt
Vector Table
Initialize first 120 interrupt vectors with
SPURIOUS_INT_HDLR and initialize INT 00h-1Fh
according to INT_TBL
1C
CMOS Battery
Check
Test CMOS and check Battery Fail
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
Early PM
Early PM initialization
Reserved
Re-initial KB
Reserved
Load keyboard matrix
HPM init
Init Heuristic Power Management (HPM)
Reserved
Program chipset
Init PNP
Early Programming of chipset registers
Init PNP
Shadow VBIOS
Clock Gen
Setup BDA
Reserved
Shadow system/video BIOS
Init onboard clock generator and sensor
Setup BIOS DATA AREA (BDA)
CPU Speed detect
Reserved
Chipset programming and CPU Speed detect
Initialize Video
Init video
Reserved
Video memory
test
Test Video Memory and display Logos
Award POST Codes
Code
Name
Description
2E
Reserved
2F
30
31
32
33
Reserved
Reserved
Reserved
Reserved
Early keyboard
reset
Early Keyboard Reset
Test DMA channel 0
Test DMA channel 1
Test DMA Page Registers
34
35
Reserved
Test DMA
Controller 0
36
37
Reserved
Test DMA
Controller 1
38
39
Reserved
Test DMA Page
Registers
3A
3B
3C
3D
3E
Reserved
Reserved
Test Timer
Reserved
Test 8254 Timer 0 Counter 2.
Test 8259-1 Mask
Verify 8259 Channel 1 masked interrupts by
alternately turning off and on the interrupt lines.
3F
40
Reserved
Test 8259-2 Mask
Verify 8259 Channel 2 masked interrupts by
alternately turning off and on the interrupt lines.
41
42
43
Reserved
Reserved
Test Stuck
Interrupt
Turn off interrupts then verify no 8259's interrupt
mask register is on. Test 8259 Force an interrupt and
verify the interrupt occurred.
44
45
46
47
Reserved
Reinit serial port
Reserved
Reinitialize Preboot agent serial port
EISA Test
If EISA non-volatile memory checksum is good,
execute EISA initialization. If not, execute ISA tests
and clear EISA mode flag.
Using NVIDIA Software
Award POST Codes
Code
Name
Description
48
Reserved
49
Size Memory
Size base memory from 256K to 640K and extended
memory above 1MB.
4A
4B
4C
4D
4E
4F
50
51
52
Reserved
Reserved
Reserved
Reserved
Init APIC
Reserved
USB init
Initialize APIC and set MTRR
Initialize USB controller
Reserved
Memory Test
Test all memory of memory above 1MB using Virtual
8086 mode, page mode and clear the memory
53
54
55
Reserved
Reserved
CPU display
Detect CPU speed and display CPU vendor specific
version string and turn on all necessary CPU features
56
57
58
59
5A
5B
5C
5D
5E
5F
60
61
62
63
Reserved
PnP Init Display
Reserved
PnP logo and PnP early init
Setup Virus
Reserved
Setup virus protect according to Protect Setup
If required, will auto load Awdflash.exe in POST
Init Initializing onboard superIO
Awdflash Load
Reserved
Onboard I/O
Reserved
Reserved
Setup enable
Reserved
Display setup message and enable setup functions
Reserved
Initialize Mouse
Detect if mouse is present, initialize mouse, install
interrupt vectors.
Award POST Codes
Code
Name
Description
64
Reserved
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
PS2 Mouse special Special treatment to PS2 Mouse port
Reserved
ACPI init
ACPI sub-system initializing
Reserved
Init Cache
Reserved
Setup
Initialize cache controller
Enter setup check and autoconfiguration check up
Initialize floppy disk drive
Reserved
Initialize Floppy
Reserved
FDD install
Reserved
Reserved
Reserved
Install FDD and setup BIOS data area parameters
Initialize Hard
Drive
Initialize hard drive controller
IDE device detection
74
75
76
77
78
79
7A
Reserved
Detect HDD
Reserved
Detect serial ports Initialize serial ports.
Reserved
Reserved
Detect parallel
ports
Initialize parallel ports.
7B
7C
7D
7E
7F
Reserved
HDD Write Protect HDD check for write protection
Reserved
Reserved
POST error check
Check POST error and display them and ask for user
intervention
80
81
Reserved
Reserved
Using NVIDIA Software
Award POST Codes
Code
Name
Description
82
Security Check
Ask password security.
83
84
85
86
87
88
89
8A
8B
Write CMOS
Display PNP
USB Final Init
Reserved
Write all CMOS values back to RAM and clear screen.
Display PNP devices
Final USB initialization
Reserved
Reserved
Setup ACPI tables
Reserved
Setup ACPI tables
Option ROM
Detect
Scan for Option ROMs
8C
8D
Reserved
Enable Parity
Check
Enable Parity Check
8E
8F
90
91
92
93
Reserved
IRQ12 Enable
Reserved
Reserved
Reserved
Enable IRQ12 if mouse present
Boot Medium
Read
Detect and store boot partition head and cylinders
values in RAM
94
95
96
C0
C1
C2
C3
C4
C5
C6
CF
Final Init
Final init for last micro details before boot
Set NumLock status according to Setup
Set low stack Boot via INT 19h.
Read/Write CPU registers
NumLock
Boot Attempt
Base CPU test
Memory Presence
Early Memory
Extend Memory
Special Display
Early Shadow
Cache presence
CMOS Check
Base memory detect
Board Initialization
Turn on extended memory, cache initialization
First display initialization
Early shadow enable for fast boot
External cache size detection
CMOS checkup
Award POST Codes
Code
Name
Description
B0
Spurious
If interrupt occurs in protected mode.
B1
Unclaimed NMI
If unmasked NMI occurs, display Press F1 to disable
NMI, F2 reboot.
BF
Program MCP
Setup Pages
Boot
To program chipset from defaults values
E1- Page 1, E2 - Page 2, etc.
E1-EF
FF
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