The information in this document is subject to change without notice and does not
represent a commitment on part of the vendor, who assumes no liability or
responsibility for any errors that may appear in this manual.
No warranty or representation, either expressed or implied, is made with respect to the
quality, accuracy or fitness for any particular part of this document. In no event shall
the manufacturer be liable for direct, indirect, special, incidental or consequential
damages arising from any defect or error in this manual or product.
Product names appearing in this manual are for identification purpose only and
trademarks and product names or brand names appearing in this document are the
property of their respective owners.
This document contains materials protected under International Copyright Laws. All
rights reserved. No part of this manual may be reproduced, transmitted or transcribed
without the expressed written permission of the manufacturer and authors of this
manual.
If you do not properly set the motherboard settings, causing the motherboard to
malfunction or fail, we cannot guarantee any responsibility.
AN8 Ultra NF4 Ultra, SATA 3Gbps, IEEE 1394, Q-OTES
AN8-3rd Eye NF4, SATA 1.5Gbps, IEEE 1394, Dual OTES, Guru Clock
AN8 NF4, SATA 1.5Gbps, IEEE 1394, Dual OTES
AN8 V2.0 NF4, SATA 1.5Gbps, IEEE 1394, Q-OTES
AN8-V NF4, SATA 1.5Gbps
! Specifications and information contained herein are subject to change without notice.
AN8 Series
Introduction 1-3
1-2. Layout Diagram (AN8 SLI)
User’s Manual
1-4 Chapter 1
1-3. Layout Diagram (AN8 Ultra)
AN8 Series
Introduction 1-5
1-4. Layout Diagram (AN8-3rd Eye/AN8)
User’s Manual
1-6 Chapter 1
1-5. Layout Diagram (AN8 V2.0)
AN8 Series
Introduction 1-7
1-6. Layout Diagram (AN8-V)
User’s Manual
1-8 Chapter 1 1-8 Chapter 1
AN8 Series
AN8 Series
Hardware Setup 2-1
Chapter 2. Hardware Setup
Before the Installation: Turn off the power supply switch (fully turn off the +5V standby power), or
disconnect the power cord before installing or unplugging any connectors or add-on cards. Failing to do
so may cause the motherboard components or add-on cards to malfunction or damaged.
2-1. Install The Motherboard
Most computer chassis have a base with many mounting holes to allow a motherboard to be securely
attached and at the same time, prevented from short circuits. There are two ways to attach the
motherboard to the chassis base:
1. use with studs
2. or use with spacers
In principle, the best way to attach the board is to
studs. Only if you are unable to do this should
you attach the board with spacers. Line up the
holes on the board with the mounting holes on the
chassis. If the holes line up and there are screw
holes, you can attach the board with studs. If the
holes line up and there are only slots, you can
only attach with spacers. Take the tip of the
spacers and insert them into the slots. After doing
this to all the slots, you can slide the board into
position aligned with slots. After the board has been positioned, check to make sure everything is OK
before putting the chassis back on.
ATTENTION: To prevent shorting the PCB circuit, please REMOVE the metal studs or spacers if they
are already fastened on the chassis base and are without mounting-holes on the motherboard to align with.
User’s Manual
2-2 Chapter 2
2-2. Install CPU, Heatsink and Fan Assembly
Please pay attention to the following notices
before installing the CPU and heatsink/fan
assembly.
1. Always use the processor with the
Heatsink and Fan Assembly installed.
2. Do not touch the pins on the processor.
3. If you ever need to reinstall the Heatsink
and fan Assembly, please clean the
heatsink surface and apply new thermal
interface material first.
3. Lower the locking lever to the fully locked
position.
1. Pull out the socket locking lever slightly,
then lift it up.
2. Align the corner with triangle mark of the
processor with the marking on the motherboard,
and then place the processor vertical down into
the socket.
AN8 Series
4. Apply thermal interface material.
5. Place the heatsink and fan assembly onto
the retention frame. Match the heatsink clip
with the socket mounting lug. Hook the spring
clip to the mounting lug.
Hardware Setup 2-3
6. On the other side, push the retention clip
straight down to lock into the plastic lug on the
retention frame.
7. Turn the cam lever to lock into the retention
frame.
8. Attach the four-pin power plug from the
heatsink and fan assembly to the CPU FAN
connector.
For detailed information on how to install your
heatsink and fan assembly, please refer to the
instruction manual that came packed with the
heatsink and fan assembly you bought.
User’s Manual
2-4 Chapter 2
2-3. Install System Memory
This motherboard provides four 184-pin DDR DIMM slots for Single/Dual Channel DDR 400/333/266
memory modules with memory expansion size up to 4GB.
Table 2-1. Valid Memory Configurations
Bank Memory Module Total Memory
Bank 0, 1 (DIMM1) 256, 512MB, 1GB 256MB ~ 1GB
Bank 2, 3 (DIMM2) 256, 512MB, 1GB 256MB ~ 1GB
Bank 4, 5 (DIMM3) 256, 512MB, 1GB 256MB ~ 1GB
Bank 6, 7 (DIMM4) 256, 512MB, 1GB 256MB ~ 1GB
Total System Memory 256MB ~ 4GB
Table 2-2. Unbuffered DIMM Support For AMD 939-pin Processor
Data Bus DIMM1 DIMM2 DIMM3 DIMM4
Single rank N/A Empty N/A DDR400
Double rank N/A Empty N/A DDR400
Empty N/A Single rank N/A DDR400
64-bits
(Single
Channel)
128-bits
(Dual
Channel)
AN8 Series
Empty N/A Double rank N/A DDR400
Single rank N/A Single rank N/A DDR400
Single rank N/A Double rank N/A DDR400
Double rank N/A Single rank N/A DDR400
Double rank N/A Double rank N/A DDR333
Single rank Single rank Empty Empty DDR400
Double rank Double rank Empty Empty DDR400
Empty Empty Single rank Single rank DDR400
Empty Empty Double rank Double rank DDR400
Single rank Single rank Single rank Single rank DDR400
Single rank Single rank Double rank Double rank DDR400
Double rank Double rank Single rank Single rank DDR400
To reach the performance of Dual Channel DDR, the following rules must be obeyed:
• When installing TWO DIMM modules: Install DIMM modules of the same type and size for
slots [DIMM1]+[DIMM2] or slots [DIMM3]+[DIMM4].
• When installing FOUR DIMM modules: Install DIMM modules of the same type and size for
slots [DIMM1]+[DIMM2], and slots [DIMM3]+[DIMM4].
AN8 Ultra/AN8 3
rd
Eye/AN8/AN8 V2.0/AN8-V
NOTE: This illustration is based on the model AN8 Ultra. All other models except for AN8 SLI share the
same connector, header and jumper positions.
AN8 SLI
NOTE: Usually there is no hardware or BIOS setup requires after adding or removing memory modules,
but you will have to clear the CMOS memory first if any memory module related problem occurs.
User’s Manual
2-6 Chapter 2
Power off the computer and unplug the AC power cord before installing or removing memory modules.
1. Locate the DIMM slot on the board.
2. Hold two edges of the DIMM module
carefully, keep away of touching its
connectors.
3. Align the notch key on the module with the
rib on the slot.
4. Firmly press the module into the slots until
the ejector tabs at both sides of the slot
automatically snaps into the mounting notch.
Do not force the DIMM module in with extra
force as the DIMM module only fit in one direction.
5. To remove the DIMM modules, push the two ejector tabs on the slot outward simultaneously, and
then pull out the DIMM module.
ATTENTION: Static electricity can damage the electronic components of the computer or optional
boards. Before starting these procedures, ensure that you are discharged of static electricity by touching a
grounded metal object briefly.
AN8 Series
Hardware Setup 2-7
2-4. Install two Graphics Cards with NVIDIA SLI Technology
(AN8 SLI)
This motherboard supports the NVIDIA SLI (Scalable-Link-Interface) technology, allowing the operation
of two identical (the same model from the same manufacturer) PCI Express x16 graphics cards.
NOTE: The NVIDIA SLI technology currently supports the Windows XP operating system only.
Normal Mode: Leave the SLI Switch to its
default Normal mode and insert the graphics
card into PCIEXP1 slot. The PCIEXP2 slot
functions as a PCIE x1 slot under this mode.
NOTE: When PCIEXP2 slot functions as a PCIE x1 slot under Normal mode, insert the PCIE x1 card
into the marked area of PCIEXP2 slot.
This motherboard is factory pre-installed with an ABIT SLI switchboard. By the default “Normal” mode,
this motherboard is set for one single graphics card operation. To operate two graphics cards on this
motherboard, you will have to set the switchboard to “SLI” mode in advance.
• Make sure the graphics card driver supports the NVIDIA SLI technology. Download the latest
driver form NVIDIA website (www.nvidia.com
• Make sure your power supply unit is sufficient to provide the minimum power required.
SLI Mode: Switch the SLI Switch to SLI
Mode and insert the SLI-ready graphics
cards into PCIEXP1 and PCIEXP2 slots.
).
User’s Manual
2-8 Chapter 2
Please follow the instructions below to set the
system to SLI mode and install your graphics
cards.
NOTE: Please handle the switchboard with
caution. Watch out for the sharp edges.
1. Simultaneously push the two retention clips
at both ends outward to release the switchboard.
Carefully pull the switchboard out of the slot.
2. Flip the switchboard over to the side
labeled with “SLI”. Carefully insert the
switchboard into the slot.
3. Slightly push down the switchboard until
the retention clip snap into places. Make sure
the switchboard is completely inserted into the
slot.
4. Insert the two graphics cards into PCIEXP1
and PCIEXP2 slots on the motherboard.
5. There are goldfingers on your SLI Graphics
Cards reserved for the SLI Bridge Connector.
AN8 Series
Hardware Setup 2-9
IMPORTANT: Please disable the following
items in BIOS setup while running under SLI
mode: All the “FanEQ controls” (CPU, NB,
SYS, OTES1, OTES2 and AUX FanEQ Control)
and “Cool ’n’ Quiet Technology”. The system
may be unstable without doing so. Detail
information about these items will be described
in “Chapter 3. BIOS Setup”.
6. Insert the SLI Bridge Connector into the
SLI goldfingers on each graphics card.
7. The SLI bracket included in the package is
used for supporting the SLI bridge connector
and the two SLI graphics cards.
8. Insert the SLI bracket into the bracket slot
between the graphics cards. Secure the SLI
bracket and the graphics cards to the chassis
with screws.
NOTE: The OTES SLIpstream that packed in
the package is optional. Please refer to the
Quick Installation Guide of the OTES
SLIpstream if you wish to install it.
User’s Manual
2-10 Chapter 2
2-5. Connectors, Headers and Switches
Here we will show you all of the connectors, headers and switches, and how to connect them. Please read
the entire section for necessary information before attempting to finish all the hardware installation inside
the computer chassis. A complete enlarged layout diagram is shown in Chapter 1 for all the positions of
connectors and headers on the board that you may refer to.
WARNING: Always power off the computer and unplug the AC power cord before adding or removing
any peripheral or component. Failing to do so may cause severe damage to your motherboard and/or
peripherals. Plug in the AC power cord only after you have carefully checked everything.
(1). ATX Power Input Connectors
This motherboard provides two power connectors to connect ATX12V power supplier.
NOTE: This 24-pin power connector “ATXPWR1” is compliant to the former 20-pin type. Pay attention
to the orientation when attaching the power cord. (Pin-11, 12, 23, and 24 should be left un-connected).
AN8 Ultra/AN8 3
rd
Eye/AN8/AN8 V2.0/AN8-V
NOTE: This illustration is based on the model AN8 Ultra. All other models except for AN8 SLI share the
same connector, header and jumper positions.
AN8 Series
Hardware Setup 2-11
AN8 SLI
Note: It is recommended to connect to a power with 350W, 20A +5VDC capacity at least for heavily
loaded system, and a 2A +5VSB capacity at least for supporting wake-up features.
The auxiliary 12V power connector [ATX4P1] provides an additional
power source for devices added on PCI Express slots. It is highly
recommended to attach 12V power from the power supplier for the best
system stability.
User’s Manual
2-12 Chapter 2
(2). FAN Power Connectors
These connectors each provide power to the cooling fans installed in your system.
• CPUFAN1: CPU Fan Power Connector
• SYSFAN1: System Fan Power Connector
• AUXFAN1: Auxiliary Fan Power Connector
• NBFAN1: Chipset Fan Power Connector
• OTESFAN1, OTESFAN2: OTES Fan Power Connector
WARNING: These fan connectors are not jumpers. DO NOT place jumper caps on these connectors.
rd
AN8 Ultra/AN8 3
Eye/AN8/AN8 V2.0/AN8-V AN8 SLI
AN8 Series
Hardware Setup 2-13
(3). CMOS Memory Clearing Header
This header uses a jumper cap to clear the CMOS memory.
• Pin 1-2 shorted (default): Normal operation.
• Pin 2-3 shorted: Clear CMOS memory.
WARNING: Turn the power off first (including the +5V standby power) before clearing the CMOS
memory. Failing to do so may cause your system to work abnormally or malfunction.
AN8 Ultra/AN8 3
AN8 SLI
rd
Eye/AN8/AN8 V2.0/AN8-V
User’s Manual
2-14 Chapter 2
(4). Front Panel Switches & Indicators Headers
This header is used for connecting switches and LED indicators on the chassis front panel.
Watch the power LED pin position and orientation. The mark “+” aligning to the pin in the figure below
stands for positive polarity for the LED connection. Please pay attention to connect these headers. A
wrong orientation will simply cause the LED to not light, but a wrong connection of the switches could
cause system malfunction.
rd
AN8 Ultra/AN8 3
Eye/AN8/AN8 V2.0/AN8-V AN8 SLI
• HLED (Pin 1, 3):
Connects to the HDD LED cable of chassis front panel.
• RST (Pin 5, 7):
Connects to the Reset Switch cable of chassis front panel.
• SPKR (Pin 13, 15, 17, 19):
Connects to the System Speaker cable of chassis.
• SLED (Pin 2, 4):
Connects to the Suspend LED cable (if there is one) of chassis front panel.
• PWR (Pin 6, 8):
Connects to the Power Switch cable of chassis front panel.
• PLED (Pin 16, 18, 20):
Connects to the Power LED cable of chassis front panel.
AN8 Series
Hardware Setup 2-15
(5). Additional USB Port Headers
These headers each provide 2 additional USB 2.0 ports connection through a USB cable designed for
USB 2.0 specifications.
AN8 Ultra/AN8 3
rd
Eye/AN8/AN8 V2.0/AN8-V
AN8 SLI
Pin
Pin Assignment
Pin Pin Assignment
1 VCC 2 VCC
3 Data0 - 4 Data1 -
5 Data0 + 6 Data1 +
7 Ground 8 Ground
9 NC 10 NC
Pin
Pin Assignment
Pin Pin Assignment
1 VCC 2 VCC
3 Data0 - 4 Data1 -
5 Data0 + 6 Data1 +
7 Ground 8 Ground
9 NC 10 NC
User’s Manual
2-16 Chapter 2
(6). Additional IEEE1394 Port Headers
This header provides one additional IEEE1394 port connection through an extension cable and bracket.
rd
AN8 Ultra/AN8 3
Eye/AN8/AN8 V2.0
Pin Pin Assignment Pin Pin Assignment
1 TPA0 + 2 TPA0 -
3 GND 4 GND
5 TPB0 + 6 TPB0 -
7 +12V 8 +12V
9 NC 10 GND
AN8 SLI
AN8 Series
Pin Pin Assignment Pin Pin Assignment
1 TPA0 + 2 TPA0 -
3 GND 4 GND
5 TPB0 + 6 TPB0 -
7 +12V 8 +12V
9 NC 10 GND
Hardware Setup 2-17
(7). Wake-up Header
These headers use a jumper cap to enable/disable the wake-up function.
rd
AN8 Ultra/AN8 3
Eye/AN8/AN8 V2.0/AN8-V
AN8 SLI
• PS2-PWR1:
Pin 1-2 shorted: Disable wake-up function support at Keyboard/Mouse port.
Pin 2-3 shorted (default): Enable wake-up function support at Keyboard/Mouse port.
• USB-PWR1:
Pin 1-2 shorted: Disable wake-up function support at USB1 port.
Pin 2-3 shorted (default): Enable wake-up function support at USB1 port.
• USB-PWR2:
Pin 1-2 shorted: Disable wake-up function support at USB2 port.
Pin 2-3 shorted (default): Enable wake-up function support at USB2 port.
User’s Manual
2-18 Chapter 2
• USB-PWR3:
Pin 1-2 shorted: Disable wake-up function support at FP-USB1 port.
Pin 2-3 shorted (default): Enable wake-up function support at FP-USB1 port.
• USB-PWR4:
Pin 1-2 shorted: Disable wake-up function support at FP-USB2 port.
Pin 2-3 shorted (default): Enable wake-up function support at FP-USB2 port.
• USB-PWR5:
Pin 1-2 shorted: Disable wake-up function support at FP-USB3 port.
Pin 2-3 shorted (default): Enable wake-up function support at FP-USB3 port.
AN8 Series
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