Third-party brands and names are the property of their respective owners.
Notice
Please do not remove any labels on motherboard, this may void the warranty of this motherboard.
Due to rapid change in technology, some of the specifications might be out of date before publication of this booklet.
The author assumes no responsibility for any errors or omissions that may appear in this document nor does the author make a
commitment to update the information contained herein.
Mar. 20, 2004
8S661FXM-RZ
Mother Board
Mar. 20 ,2004
Motherboard
8S661FXM-RZ
Preparing Your Computer
Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. T o
protect them against damage from static electricity, you should follow some precautions whenever you
work on your computer.
1. Unplug your computer when working on the inside.
2. Use a grounded wrist strap before handling computer components. If you do not have one,
touch both of your hands to a safely grounded object or to a metal object, such as the power
supply case.
3. Hold components by the edges and try not touch the IC chips, leads or connectors, or other
components.
4. Place components on a grounded antistatic pad or on the bag that came with the components
whenever the components are separated from the system.
5. Ensure that the A TX power supply is switched off before you plug in or remove the ATX power
connector on the motherboard.
Installing the motherboard to the chassis
If the motherboard has mounting holes, but they don't line up with the holes on the base and there
are no slots to attach the spacers, do not become alarmed you can still attach the spacers to the
mounting holes. Just cut the bottom portion of the spacers (the spacer may be a little hard to cut off, so
be careful of your hands). In this way you can still attach the motherboard to the base without worrying
about short circuits. Sometimes you may need to use the plastic springs to isolate the screw from the
motherboard PCB surface, because the circuit wire may be near by the hole. Be careful, don't let the
screw contact any printed circuit write or parts on the PCB that are near the fixing hole, otherwise it
may damage the board or cause board malfunctioning.
CPUy Socket 478 for Intel® Micro FC-PGA2 Pentium® 4 processor
y Support Intel® Pentium® 4 (Northwood, Prescott) processor
y Support Intel
y Intel® Pentium® 4 800/533/400MHz FSB
y 2nd cache depends on CPU
Chipsety North Bridge:SiS® Chipset 661FX
y South Bridge:SiS
Memoryy 2 184-pin DDR sockets
y Supports DDR400/DDR333/DDR266
y Supports up to 2 unbuffered DIMM DDR400
y Supports up to 2GB (Max)
Slotsy 1 AGP slot 4X/8X (1.5V) device support
y 3 PCI slot
On-Board IDEy 2 IDE bus master (UDMA33/ATA66/ATA100/ATA133) IDE
ports for up to 4 ATAPI devices
y Supports PIO mode3,4 (UDMA 33/ATA66/ATA100/ATA133)
IDE & ATAPI CD-ROM
On-Board Floppyy Floppy port supports 2 FDD with 360K, 720K,1.2M, 1.44M and 2.88M bytes
On-Board Peripherals y 1 Parallel port
y 1 Serial port (COMA),1 VGA port,COMB on board
y 6 x USB 2.0/1.1 (2 x Rear, 4 xFront by cable)
y 1 Front Audio Connector
y PS/2 Keyboard interface and PS/2 Mouse interface
On-Board VGAy Build in SiS661FX Chipset
On-Board LANy Build in ICS1883 Chipset
On-Board Soundy CMedia 9761 codec
y Line Out / 2 front speaker
y Line In / 2 rear speaker(by s/w switch)
y Mic In / center& subwoofer(by s/w switch)
y SPDIF Out /SPDIF In
y CD_In / Game Port
BIOSy Licensed Award BIOS
y Supports Q-Flash
®
Pentium® 4 Processor with HT Technology
®
963L
<Note >
to be continued......
English
Introduction- 5 -
I/O Controly IT8705
Hardware Monitory CPU/System Fan Revolution detect
English
Additional Featuresy Supports EasyTune 4
Form Factory 23.0cm x 24.4cm Micro ATX size form factor, 4 layers PCB.
y CPU temperature detect
y System Voltage Detect
y Supports @BIOS
Please set the CPU host frequency in accordance with your processor's specifications.
We don't recommend you to set the system bus frequency over the CPU's specification
because these specific bus frequencies are not the standard specifications for CPU,
chipset and most of the peripherals. Whether your system can run under these specific
bus frequencies properly will depend on your hardware configurations, including CPU,
Chipsets, Memory, Cards….etc.
8S661FXM-RZ Motherboard
- 6 -
8S661FXM-RZ Motherboard Layout
23.0 cm
English
KB_MS
COMA
VGA
LINE_OUT
LINE_IN
MIC_IN
USB
CODEC
LPT
GAME
LAN
IT8705
COMB
F_AUDIO
BIOS
CD_IN
CPU_FAN
ICS1883
ATX_12V
SUR_CEN
AGP
SOCKET 478
SiS 661FX
PCI1
PCI2
PCI3
SPDIF_IO
F_USB1
8S661FXM-RZ
DDR1
F_USB2
PWR_LED
DDR2
SiS 963L
ATX
IDE2
BATTERY
F_PANEL
FDD
SYS_FAN
IDE1
CI*
24.4 cm
CLR_CMOS
"*" Only for 8S661FXM-RZ Rev. 1.1
Introduction- 7 -
Block Diagram
English
PCICLK
(33MHz)
AGPCLK
(66MHz)
3 PCI
AGP 4X/8X
RJ45
VGA Port
AC97 Link
AC97
CODEC
MIC
LINE-IN
ICS
1883
6 USB
Ports
LINE-OUT
Pentium 4
Socket 478
CPU
System Bus
800/533/400MHz
SiS 661FX
SiS 963L
ATA33/66/100/133
IDE Channels
CPUCLK+/- (100/133/200MHz)
266/333/400MHz
DDR RAM
MCHCLK (100/133/200MHz)
66 MHz
33 MHz
48 MHz
LPC BUS
14.318 MHz
IT8705
24 MHz
33 MHz
PS/2 KB/Mouse
BIOS
Game Port
Floppy
LPT Port
2 COM Ports
8S661FXM-RZ Motherboard
- 8 -
Hardware Installation Process
To set up your computer, you must complete the following steps:
Step 1- Install the Central Processing Unit (CPU)
Step 2- Install memory modules
Step 3- Install expansion cards
Step 4- Install I/O Peripherals cables
English
Step 4
Step 1
Step 2
Step 4
Step 3
Step 1: Install the Central Processing Unit (CPU)
Before installing the processor, adhere to the following warning:
1. Please make sure the CPU type is supported by the motherboard.
2. The processor will overheat without the heatsink and/or fan, resulting in permanent
irreparable damage.
3. If you do not match the CPU socket Pin 1 and CPU cut edge well, it will cause improper
installation. Please change the insert orientation.
4. Apply thermal grease between the processor and cooling fan.
5. Never run the processor without the heatsink properly and firmly attached. Permanent
damage will result.
6. Please set the CPU host frequency in accordance with your processor's specifications.
We don't recommend you to set the system bus frequency over the CPU's specification
because these specific bus frequencies are not the standard specifications for CPU,
chipset and most of the peripherals. Whether your system can run under these specific
bus frequencies properly will depend on your hardware configurations, including CPU,
Memory, Cards…etc.
HT functionality requirement content :
Enabling the functionality of Hyper-Threading Technology for your computer system
requires all of the following platform components:
- CPU: An Intel® Pentium 4 Processor with HT Technology
- Chipset: A SiS® Chipset that supports HT Technology
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology
Step 4
- 9 -Hardware Installation Process
Step 1-1: CPU Installation
English
Step 1-2: CPU Cooling Fan Installation
Socket
Actuation
Lever
Figure 1.
Pull the rod to the 90-degree directly.
Figure 2.
Locate Pin 1 in the socket and look for a (golden) cut edge on the
CPU upper corner. Insert the CPU into the socket. (Do not force the
CPU into the socket.) Then move the socket lever to the locked
position while holding pressure on the center of the CPU.
Figure 1.
Apply the thermal tape(or grease) to provide better heat conduction
between your CPU and cooling fan.
8S661FXM-RZ Motherboard
Figure 2.
Fasten the cooling fan supporting-base onto the CPU socket on the
motherboard.
Figure 3.
Make sure the CPU fan is plugged to the CPU fan connector, than
install complete.
- 10 -
Step 2: Install memory modules
Before installing the memory modules, adhere to the following warning:
Please note that the DIMM module can only fit in one direction due to the one notch. Wrong
orientation will cause improper installation. Please change the insert orientation.
The motherboard has 2 dual inline memory module (DIMM) sockets. The BIOS will automatically
detects memory type and size. To install the memory module, just push it vertically into the DIMM
socket. The DIMM module can only fit in one direction due to the notch. Memory size can vary between
sockets.
1. The DIMM socket has a notch, so the DIMM
memory module can only fit in one direction.
2. Insert the DIMM memory module vertically into
the DIMM socket. Then push it down.
3. Close the plastic clip at both edges of the DIMM
sockets to lock the DIMM module.
Reverse the installation steps when you wish to
remove the DIMM module.
- 11 -Hardware Installation Process
Step 3: Install expansion cards
1. Read the related expansion card's instruction document before install the expansion card into
English
2. Please make sure your AGP card is AGP 4X/8X (1.5V).
3. Please carefully pull out the small white- drawable bar at the end of the AGP slot when you try to
Step 4: Install I/O Peripherals Cables
Step 4-1: I/O Back Panel Introduction
the computer.
install/ Uninstall the AGP card. Please align the AGP card to the onboard AGP slot and press firmly
down on the slot .Make sure your AGP card is locked by the small white- drawable bar.
AGP Card
X
Y
Z[
\
]^
`
_
X PS/2 Keyboard and PS/2 Mouse connector
This connector supports standard PS/2 keyboard and PS/2 mouse.
Y Parallel port (LPT)
Device like printer can be connected to Parallel port.
Z Serial port (COMA)
Mouse and modem etc. can be connected to Serial port.
[ VGA port
Monitor can be connected to VGA port.
\ Game/MIDI port
This connector supports joystick, MIDI keyboard and other relate audio devices.
] Line Out jack
Connect the stereo speakers or earphone to this connector.
^ Line In jack
Devices like CD-ROM, walkman etc. can be connect to Line In jack.
8S661FXM-RZ Motherboard
- 12 -
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