NSK 4000 II /
NSK 4480 II / NSK 4480B II
User’s Manual
At Antec, we continually refine and improve our products to ensure the highest quality.
It’s possible that your new case will differ slightly from the descriptions in this manual. This isn’t a
problem; it’s simply an improvement. As of the date of publication, all features, descriptions,
and illustrations in this manual are correct.
Disclaimer
This manual is intended only as a guide for Antec’s Computer Enclosures. For more
comprehensive instructions on installing the motherboard and peripherals, please
refer to the user’s manuals that come with those components.
New Solution Series User’s Manual
NSK 4000 II / NSK 4480 II / NSK 4480B II
Mini Tower Case
This case is designed to meet Intel’s Thermally Advantaged Chassis (TAC) 2.0 design
guide requirements.
While the NSK 4000 II does not offer a PSU, the NSK 4480 II and the NSK 4480B II come
with an EarthWatts 380 watt PSU. The PSU features Universal Input and Active Power
Factor Correction (Active PFC). It conforms to the ATX12V v2.2 specification and is cooled
by a single 80mm fan. Two +12V output rails deliver safer and more reliable output to
your system’s components. Higher energy efficiency reduces power consumption by up to
25%, saving you money on your electric bill. EarthWatts power supplies have achieved 80
PLUS® certification, the highest independent standard in power supply efficiency. In addition,
EarthWatts includes a variety of protective circuitry: OPP (over power protection), OVP (over
voltage protection), and SCP (short circuit protection).
The power supply comes with a main power switch. Make sure you turn the switch to the
ON ( I ) position before you boot up the computer for the first time. Normally, you won’t
need to switch to the OFF ( O ) position, since the power supply includes a soft on/off
feature. If the computer crashes and you can’t shut down using the soft switch, switch the
main power to the OFF ( O ) position, then reboot.
For models designed for sale in the European Union:
Antec power supply models feature Active Power Factor Correction (Active PFC) circuitry
in accordance with European standard regulation code EN61000-3-2. By altering the input
current wave shape, Active PFC improves the power factor of the PSU. A better power
factor increases energy efficiency, reduces heat, improves output voltage stability and
prolongs the life of your equipment.
Although care has been taken to prevent sharp edges in your Antec case, we strongly
recommend taking the time and appropriate care when working with it. Hurried or careless
motion and use of excessive force, particularly when you are working in areas you cannot
see clearly, are but a few examples of activity that should be avoided. Please use reasonable
precaution.
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1.1Case Specifications
Case Type
Color
Mini Tower
Silver and Black / All Black
16.9” (H) x 7.9” (W) x 16.5” (D)
430mm (H) x 200mm (W) x 420mm (D)
Dimensions
Weight
15 lbs / 6.82 kg
1 x Rear 120mm TriCool™ 3-speed fan
1 x Front mount for optional 80mm fan
1 x Advanced Chassis Air Guide, with mount for optional
80mm fan
Cooling
8 Drive Bays:
- External 3 x 5.25” bays
- External 2 x 3.5” bays
- Internal 3 x 3.5” bays
Drive Bays
Motherboard Size
Front I/O Panel
Mini-ITX, microATX, Standard ATX
2 x USB 2.0
AC’97/HD Audio In and Out
1.2 Diagram
1. 120mm rear TriCool™ exhaust fan
2. Front 80mm fan slot (optional)
3. Motherboard mount: Mini-ITX, microATX or Standard ATX
4. EarthWatts 380W ATX12V v2.2 power supply – NSK 4480 II / NSK 4480B II only
5. 3 x 5.25” external drive bays
6. 2 x 3.5” external drive bays
7. Up to 3 x 3.5” internal drive bays
8. Front I/O panel
4
5
5
1
6
6
8
7
3
2
2
Hardware Installation Guide
This manual is not designed to cover CPU, RAM, or expansion card installation. Please consult the
motherboard manual for specific mounting instructions and troubleshooting. Before proceeding,
check the manual for your CPU cooler to find out if there are steps you must take before installing
the motherboard. While installing hardware, keep your case on a flat, stable surface.
2.1 Setting Up
1. Take the case out of the box. Remove the styrofoam and plastic bag.
2. Place the case upright on a flat, stable surface so that the rear panel (power supply and
expansion slots) is facing you.
3. Remove the two thumbscrews that fasten the top cover onto the case. These are the
only screws you need to remove to open the case. Set these screws aside and keep
them separate from the other screws.
4. Slide the top panel toward the rear of the case and lift it up to remove.
5. At the top of each side panel, in front of the power supply, there is a 4”wide tab. Using
this, lift and pull the side panels out to remove.
6. Inside the case you should see the power supply, some wiring (LED’s, etc.), an installed
I/O panel, a power cord and a plastic bag containing more hardware (screws, brass
standoff, plastic stands, etc.).
2.2 Motherboard Installation
1. Lay the case down so that the open side is up. You should be able to see the drive cage
and power supply.
2. Make sure you have the appropriate I/O panel for the motherboard. If the panel provided
is not suitable for the motherboard, please contact the motherboard manufacturer for
the correct I/O panel.
3. Line up the motherboard with the standoff holes. Determine which ones line up and
remember where they are. Not all motherboards will match with all of the provided
screw holes, and this is not necessary for proper functionality. Some standoffs may be
pre-installed for your convenience.
4. Lift up and remove the motherboard.
5. Screw in the brass standoffs to the threaded holes that line up with the motherboard.
6. Place the motherboard on the brass standoffs.
7. Screw in the motherboard to the standoffs with the provided Phillips-head screws.
2.3 3.5” Device Installation
There is one 3.5” drive cage inside the case. It can hold two external 3.5” drives and three
internal 3.5” hard disk drives (HDDs).
1. Remove the screw that fastens the cage to the case. Slide the cage out of the case.
2. Mount your external 3.5” drives into the top two drive bays and internal drives into the
other three drive bays that have rubber grommets. Load the drives from the back, lining
them up to the front of the drive cage.
3. With one hand supporting the drive, fasten the drive to the cage with the screws
provided.
4. Slide and fasten the cage back to the case.
5. Find a small 4-pin connector on the power supply and connect it to the male 4-pin
connector on the floppy drive.
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6. Connect the appropriate connector(s) from the power supply to the hard drive(s).
2.4 5.25” Device Installation
There are three external 5.25” drive bays.
1. Looking from the rear of the case you can see metal grills covering the 5.25” drive bays.
Carefully push a screwdriver through the metal grill and gently push the plastic drive bay
cover outwards until it comes off.
2. Using your hands, twist the metal plate back and forth until it breaks off.
Note: Don’t break off the metal grills covering the drive bays that you are not using
now. Be careful of the newly exposed metal where the grill was attached, as these
areas are likely to be sharp.
3. Fasten the 5.25” device into the drive bay with the screws provided.
4. Repeat the same procedure for other devices.
5. Connect the appropriate connector from the power supply to the device.
Connecting the Front I/O Ports
3.1 USB 2.0
Connect the front I/O panel USB cable to the USB header pin on your motherboard. Check the
motherboard manual to ensure that it matches the table below:
Motherboard USB Pin Layout
1
2
Pin
1
Signal Names
USB Power 1
Pin
2
Signal Names
USB Power 2
Negative Signal 2
Positive Signal 2
Ground 2
Negative Signal 1
Positive Signal 1
Ground 1
3
4
5
6
7
8
Key (No Connection)
Empty Pin
9
10
9 10
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3.2 AC’97/HD Audio Ports
There is an Intel® standard 10-pin AC’97 connector and an Intel® 10-pin HDA (High Definition
Audio) connector linked to the front panel of the case.
Pin Assignment for Audio Ports (HDA and AC’97)
Signal Names
(HDA)
Signal Names
(AC’97)
Pin
Pin
1
2
MIC2 L
AGND
1
2
MIC In
GND
3
MIC2 R
3
MIC Power
NC
10 6 4 2
9 7 5 3 1
4
AVCC
4
5
FRO-R
5
Line Out (R)
Line Out (R)
NC
6
MIC2_JD
F_IO_SEN
Key (no pin)
FRO-L
6
7
7
8
8
Key (no pin)
Line Out (L)
Line Out (L)
9
9
10
LINE2_JD
10
You can connect either the AC’97 or the HDA connector depending on the model of the
motherboard. Locate the internal audio connectors from your motherboard or sound card and
connect the corresponding audio cable. Consult your motherboard or sound card manual for
the pin-out positions. Even if your system supports both audio standards, you may only use
one connector.
3.3 Switch and LED Connectors
Connected to your front panel are LED leads for power and hard disk activity and switch leads
for power and reset. Attach these to the corresponding connectors on your motherboard.
Consult your motherboard manual for specific pin header locations. Polarity (positive and
negative) does not matter for switches. For LEDs, colored wires are positive ( + ). White or
black wires are negative ( – ). If the LED does not light up when the system is powered on,
try reversing the connection. For more information on connecting LEDs to your motherboard,
see your motherboard manual.
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3.4 Rewiring Motherboard Header Connectors
There may come a time when you need to reconfigure the pin-
out of a motherboard header connector. Examples could be
for your USB header, audio input header, or some other front
panel connector such as the Power Button connector.
Before performing any work, please refer to your motherboard
manual or your motherboard manufacturer’s website to be sure
of the pin-out needed for your connector. And we strongly
recommend making a notated drawing before beginning work
so that you can recover if your work is disturbed.
1. Determine which wires you need to remove in order
to rewire your plug to match the USB pin-outs on your
motherboard (refer to your motherboard manual). Working
on one connector at a time, use a very small flathead
screwdriver or similar tool to lift up on the black tab
located beside the gold posts (squares). This will allow
you to easily slide out the pins from the USB plug.
2. Working carefully so as not to damage the wires,
connectors, or pins, slowly remove the pin from the
connector. Repeat these steps for each wire you
need to change.
3. Working carefully so as not to damage the wires, connectors or pins, slowly reinsert the
pin into the correct slot of the connector then snap closed the black tab that was lifted
in step 1. Repeat these steps for each wire you need to change.
Cooling System
4.1 Rear Exhaust TriCool™ Fan
The NSK 4000 II / NSK 4480 II / NSK 4480B II comes with one 120mm TriCool™ fan
pre-installed. This fan has a three-speed switch that lets you choose between quiet,
performance, or maximum cooling. (See specifications below.) The fan is installed so that the
air is exhausting. Connect a large 4-pin connector from the power supply to the male 4-pin
connector on the fan.
Note: The default setting of the fan is Low. We recommend this speed for maximum
quiet computing.
Note: The minimum voltage to start the fan is 5V. We recommend that users set the fan
speed to High if you choose to connect the fan to a fan control device or to the Fan-Only
connector found on some of Antec’s power supplies. A fan-control device regulates the fan
speed by varying the voltage to it. The voltage may start as low as 4.5V to 5V. Connecting a
TriCool™ set on Medium or Low to a fan-control device may result in the fan not being able to
start. The already lowered voltage from the fan control device will be further reduced by the
TriCool™ circuitry below 5V.
Specifications:
Size:
120 x 120 x 25.4mm
DC 12V
Rated Voltage:
Operating Voltage:
10.2V ~13.8V
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Speed
(RPM)
Input
Current
Input
Power
Air Flow
Static Pressure
Noise
High
2000
0.24A
(max.)
2.24 m³ / min
(79 CFM)
2.54mm-H2O
(0.10inch-H2O)
30 dBA
28 dBA
25 dBA
2.9 W
2.4 W
1.6 W
Medium
1600
1.59 m³ / min
(56 CFM)
1.53mm-H2O
(0.06inch-H2O)
0.2A
Low
1200
1.1 m³ / min
(39 CFM)
0.92mm-H2O
(0.04inch-H2O)
0.13A
4.2 Front 80mm Intake Fan
An optional 80mm fan can be installed to pull air in at the bottom front of the case. A
mounting bracket is provided for this purpose.
1. Squeeze the upper right and left sides of the fan cage together to release the tabs. Once
loose, you should be able to pull the cage back and out of the case.
2. Drop the fan into the cage and push it in until it clips in. No screws are needed. The
front fan should be installed so that air is blowing into the case.
3. Reattach the cage/fan assembly to the case, making sure to not pinch the wires of the
fan. There are slots near each corner to put the wires through (any corner will work,
find the one that’s best for you).
4. If you’re using a 4-pin fan, connect a 4-pin large white connector from the power
supply. If you’re using a 3-pin fan, connect the 3-pin connector to a motherboard fan
header.
4.3 Thermally Advantaged Chassis (TAC 2.0) Air Guide
This chassis uses a thermal air guide that conforms to the Intel Thermally Advantaged
Chassis design guide. This guide is designed to provide ventilation directly to the CPU and
graphics card through the integrated air duct.
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Antec, Inc.
47900 Fremont Blvd.
Fremont, CA 94538
USA
tel: 510-770-1200
fax: 510-770-1288
Antec Europe B.V.
Stuttgartstraat 12
3047 AS Rotterdam
The Netherlands
tel: +31 (0) 10 462-2060
fax: +31 (0) 10 437-1752
Customer Support:
US & Canada
1-800-22ANTEC
Europe
+31 (0) 10 462-2060
© Copyright 2009 Antec, Inc. All rights reserved.
All trademarks are the property of their respective owners.
Reproduction in whole or in part without written permission is prohibited.
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