AOpen AX6CL User Manual
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DOC. NO. : AX6CL-OL-E0010B
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BBeeffoorree YYoouu SSttaarrtt
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to ins tall your system. Follow each s tep accordingly.
Installing CPU and Fan
1111
Installing System Memory (RIMM)
2
2
2 2
Connecting Front Panel Cable
3
3
3 3
Connecting IDE and Floppy Cable
4
4
4 4
Connecting ATX Power Cable
5
5
5 5
Connecting Back Panel Cable
6
6
6 6
Power-on and Load BIOS Setup Default
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7
7 7
Setting CPU Frequency
8
8
8 8
Reboot
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9 9
Installing Operating Syst em (such as Windows 98)
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Installing Driver and Utility
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JP29 Onboard Sound
CD Audio
Modem Audio
4Mb Flash BIOS
Virus Protection
Wake on Time
Multi-Languare BIOS
Wakeu
Housing Fan
WOL
Wakeup on LAN
Battery-less
WOM
on Modem
Panel Connector
AM
IrDA
Housing Fan
Motherboard Map
PC99 Back Panel
4X AGP
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ATX Power Connector
AC Power Auto Recovery
Low ESR capacitor
Resettable Fuse
JP28 KB/MS Wakeu
Jumper-less Design
Over-current Protection
Thermal Protection
CPU Fan Connector
System Voltage & Fan
Monitoring
Intel 820 Chipset
PC800 RIMM
Full-range RDRAM Speed
FDC
ATA/66 IDE
Suspend to HDD
RAM Power LED
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BBlloocckk DDiiaaggrraamm
AGP Card
PCI Card
USB
AMR Card
MIC, Line-in and
Speaker
4X AGP
PCI Bus
AC97 Link
Bus
CODEC
Memory Control
Hub (MCH)
I/O Control Hub
Audio
CPU
100/133MHz FSB
Hub Link
(ICH)
Low Pin
Count
Super I/O
5
Clock Generator
Rambus
ATA/66
IDE Bus
LPC I/F
RIMM
HDD/CDROM
4Mb BIOS ROM
Floppy
Serial port, Printer and
PS/2 KB/Mouse
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HHaarrddwwaarree
This chapter describes j umpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, dis
drives, expansion boards, and other components. Always observe th
following precautions before you install a system component.
1.Do not remove a component from its protective packaging until yo
are ready to install it.
2.Wear a wrist ground strap and attach it to a metal part of the syste
unit before handling a component. If a wrist strap is not available,
maintain contact with the system unit throughout any procedure
requiring ESD protection.
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JJPP1144 CClleeaarr CCMMOOSS
You can clear CMOS to restore system default sett i ng. To clear the CMOS, follow the procedure
below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from ATX power connector.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pi ns 1-2.
5. Connect ATX power cable back to ATX power connector.
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
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2
3
Normal Operation
(default)
Clear CMOS
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JJPP2288 KKeeyybbooaarrdd//MMoouussee WWaakkeeuupp
This jumper is used to enable or disable Keyboard/Mouse Wake Up function. If you select Enable,
you can decide the wake up mode from BIOS Setup > Integrated Peripherals > Power On Function
To implement this function, the power supply 5V standby current must be greater than 800mA. Note
that only PS/2 mous e supports Wake on Mouse funct i on.
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1 2 3
Disable
Tip: You have to wait for system to
successfully boot from operation system
(such as Windows or DOS) before the
Wake-On-Keyboard/Mouse can take effect.
This is because the information of how to
support this function must be stored into
Super I/O Controller and then you can use it
for next power on.
1 2 3
Enable
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Keyboard
Super I/O Controller
PS2 Mouse
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ATX standby power
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BIOS
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CCPPUU SSlloott aanndd FFaann CCoonnnneeccttoorr
Plug CPU to slot1 connec tor. Be careful of CPU orientation. Plug in the fan cable to the 3-pin
or
CPUFAN
connector.
FAN
GND
+12V
SENSE
Note: Some CPU fans do not have
sense pin, so that cannot support fan
monitoring.
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CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus cl ock generator provide CPU voltage auto-detec tion and allows the
user to set the CPU frequenc y through the BIOS setup
The correct CPU information is saved into the EEPROM
disadvantages of the Pentium based jumper-less designs are eliminated. There will be no worry of
wrong CPU voltage detection and no need to re-open the housing in case of CMOS battery loss.
Pentium II/III &
Celeron CPU
, therefore no jumpers or switches are used.
. With these technologies, the
Clock
Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
CPU VID Signal
(Automatically generates CPU voltage)
Power Regulator
CPU voltage
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Setting CPU Core Voltage
This motherboard supports CPU V I D function. The CPU core voltage will be automatic ally det ec ted
and the range is from 1.3V t o 3.5V..
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Setting CPU Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup,
no jumpers or switches are needed.
BIOS Setup > Frequency Control > CPU Speed Setting
CPU Ratio
CPU FSB
3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, and 8x
100.2, 105, 114, 120, 124, 128.5, 133.3, 133.9, 138, 143, 148, 150, 152.5,
155, and 160 MHz.
Warning: INTEL 820 chipset supports maximum
133MHz FSB and 66MHz AGP clock, higher clock
setting may cause serious system damage.
Tip: If your system hangs or fails to boot because of
overclocking, simply use JP14 to clear CMOS and restore to
the default setting (350MHz when FSB=100MHz; 267MHz
when FSB=133.3MHz ).
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Core Frequency = CPU FSB Clock * CPU Ratio
CPU CPU Core Frequency FSB Clock Ratio
Celeron 300A 300MHz = 66MHz 4.5x
Celeron 366 366MHz= 66MHz 5.5x
Celeron 366 366MHz= 66MHz 5.5x
Celeron 400 400MHz= 66MHz 6x
Pentium II 233 233MHz = 66MHz 3.5x
Pentium II 333 333MHz = 66MHz 5x
Pentium II 350 350MHz= 100MHz 3.5x
Pentium II 400 400MHz = 100MHz 4x
Penti um III 450 450MHz= 100MHz 4.5x
Penti um III 500 500MHz = 100MHz 5x
Penti um III 533EB 533MHz = 133MHz 4x
Penti um III 550E 550MHz = 100MHz 5.5x
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Penti um III 600E 600MHz = 100MHz 6x
Penti um III 600EB 600MHz = 133MHz 4.5x
Penti um III 650E 650MHz = 100MHz 6.5x
Penti um III 667EB 667MHz = 133MHz 5x
Penti um III 700E 700MHz = 100MHz 7x
Penti um III 733EB 733MHz = 133MHz 5.5x
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RRIIMMMM SSoocckkeett
Intel 820 chipset supports 16/18 bit Direct RAMBUS (RDRAM) configurations and supports a
maximum of 32 devices on a RDRAM channel. A channel can be populated with mix of 64Mbit,
128Mbit, and 256Mbit RDRAM devices. Hence, the maxim um system memory will be various
depends on the number of RDRAM devices and t he RDRAM device technology. This motherboard
has two 184-pin RIMM sockets that al l ow you to install system memory up to
.
1GB
Example Picture of RIMM
Pin 1
RIMM1
RIMM2
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RDRAM Technology Maximum Memory on Channel
64 or 72Mbit with parity 256MB
128 or 144Mbit with parity 512MB
256 or 288Mbit with parity 1GB
RDRAM Devices
#1
#2
Control
Data 16/18 bit
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#32
Terminator
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The RIMM
contain up to a maximum of 16 RDRAM devices. All RDRA M devices on a RIMM must have the
same timing characteristics. Therefore, empty RIMM sockets
RIMM modules, ( CRIMM )
modules have Rambus c hannel signals as their memory interface. A RIMM modul e may
MUST
which will be provided with motherboard.
Rambus Channel
MCH
RIMM1 RIMM2
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be populated with
Terminator
Continuity
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Setting RDRAM Speed
RDRAM speed means the data trans fer rate of RDRAM device, for example, PC800 RIMM has
800MBytes/sec data trans fer rate. Following table lists 5 kinds of CPU FSB and RDRAM speed
configurations that are s upported by Intel 820 chipset.
RDRAM Speed FSB Clock Ratio Suggested RDRAM
600MB/s = 100MHz 6x PC600
800MB/s = 100MHz 8x PC800
533MB/s = 133.3MHz 4x PC600
710MB/s = 133.3MHz 5.33x PC700
800MB/s = 133.3MHz 6x PC800
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But with AOpen
expanded to almost unlimited. The RDRAM speed can be set by going into:
BIOS Setup > Frequency Control > RDRAM Speed
RDRAM Speed = CPU FSB Clock * RDRAM Ratio
RDRAM Ratio
CPU FSB
Full-range RDRAM Speed
4x, 4.5x, 5.33x, 6x, 7.11x and 8x
100.2, 105, 114, 120, 124, 128.5, 133.3, 133.9, 138, 143, 148, 150, 152.5,
155, and 160 MHz.
technology (patent pending) the combination can be
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RRAAMM PPoowweerr LLEEDD
This LED indicates there i s power applies to memory. It is useful to check RAM power during
Suspend to RAM. Do not unplug RIMM when this LED is On.
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FFrroonntt PPaanneell CCoonnnneeccttoorr
Keylock
IDE LED
Speaker
1
+
+
+
+
SPWR
ACPI &
+
Power LED
+
Reset
22
1
GND
KEYLOC
+5
IDE LED
IDE LED
+5
+5
GND
NC
SPEAKE
SPWR
GND
ACPI & PWR LED
GND
+5V
NC
NC
GND
RESET
GND
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Attach the power LED, keylock, speaker, and reset switch connectors to the corresponding pins. If
you enable Power Management > ACPI Function
flashing while the system i s in suspend mode.
Suspend Type ACPI LED
Power on Suspend (S1) Flashing for every second
Suspend to RAM (S3) Flashing for every 4 seconds
Locate the power switch cable from your ATX housing. It is 2-pin female connector from the
housing front panel. Plug this connector to the soft -power switch connector marked
in BIOS Setup, the ACPI & Power LED will keep
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SPWR
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AATTXX PPoowweerr CCoonnnneeccttoorr
The ATX power supply uses 20-pin connector shown below. Make sure you plug in the right
direction.
+5V
+5
+3.3
PWOK
GND
24
-12
PWOK
-5V
GND
+12V
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AACC PPoowweerr AAuuttoo RReeccoovveerryy
A traditional ATX system should remain at power off stage when AC power resum es from power
failure. This design is i nconvenient for a network server or workstation, without an UPS, that needs
to keep power-on. This motherboard implements an AC Power Auto Recovery f unction to solve this
problem. If BIOS Setup > Integrated Peripherals > AC PW R Auto Recovery is set to “Enabled” the
system will automatically power-on after AC power resumes.
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IIDDEE aanndd FFllooppppyy CCoonnnneeccttoorr
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDC and IDE connector
IDE1, IDE2
Wrong orientation m ay cause system damage.
. Pin1 of cable is normally marked with red color. Be careful of the pin1 orientation.
Slave (4th)
Master (3rd)
IDE2 (Secondary)
IDE1 (Primary)
Pin 1
FDC
Pin 1
Master (1st) Slave (2nd)
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IDE1 is also known as the primary channel and IDE2 as the sec ondary channel. Each channel
supports two IDE devices t hat make a total of four devic es. In order to work together, the two
devices on each channel must be set differently to
hard disk or the CDROM. The setting as master or slave mode depends on the jumper on your IDE
device, so please refer to your hard di sk and CDROM manual accordingly.
Warning: The specification of the IDE cable is a
maximum of 46cm (18 inches), make sure your cable
does not exceed this length.
Tip: For better signal quality, it is recommended
to set the far end side device to master mode
and follow the suggested sequence to install
your new device. Please refer to above diagram.
master
and
slave
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mode. Either one can be the
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This motherboard supports ATA/66 IDE. Following table lists the transf er rat e of IDE PIO and DMA
modes. The IDE bus is 16-bit, which means every transfer is two bytes.
Mode Clock Period Clock
PIO mode 0 30ns 20 600ns (1/600ns) x 2byte = 3.3MB/s
PIO mode 1 30ns 13 383ns (1/383ns) x 2byte = 5.2MB/s
PIO mode 2 30ns 8 240ns (1/240ns) x 2byte = 8.3MB/s
PIO mode 3 30ns 6 180ns (1/180ns) x 2byte = 11.1MB/s
PIO mode 4 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s
DMA mode 0 30ns 16 480ns (1/ 480ns) x 2byte = 4.16MB/s
DMA mode 1 30ns 5 150ns (1/150ns) x 2byte = 13.3MB/s
DMA mode 2 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s
UDMA/33 30ns 4 120ns (1/120ns) x 2byte x2 = 33MB/s
UDMA/66 30ns 2 60ns (1/60ns) x 2byte x2 = 66MB/s
UDMA/100 20ns 2 40ns (1/40ns) x 2byte x2 = 100MB/s
Tip: To achieve the best performance of Ultra DMA/66 hard disks,
a special 80-wires IDE cable is required..
Count
Cycle Time Data Transfer Rate
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1 2
9 10
NC
CIRRX
5VSB
NC
NC
connector and enable the infrared function from BIOS
IrDA
, make sure to have the c orrect orientation
Pin 1
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IIrrDDAA CCoonnnneeccttoorr
The IrDA connector can be conf i gured t o support wireless infrared module, with this module and
application software such as Laplink or Windows 95 Direc t Cabl e Connection, the user can transfer
files to or from laptops, notebooks, PDA devi ces and printers. This connec tor supports SIR
(115.2Kbps, 2 meters) and ASK-IR (57.6Kbps).
Install the infrared m odul e onto the
Setup > Integrated Peripherals > UA RT Mode Select
when you plug in the IrDA connector.
+5
NC
IRR
GND
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WWOOMM ((ZZeerroo VVoollttaaggee WWaakkee oonn MMooddeemm))
This motherboard implements special circuit to support Wake On Modem , both internal modem
card and external box modem are supported. Since Internal modem card consumes no power when
system power is off, it i s recommended to use an internal modem. To use internal modem, connect
4-pin cable from
1
connector of modem card to the
RING
Pin 1
+5V Standby
NC
RING
GND
30
WOM
connector on the motherboard.
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