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6. JP23 FSB/PCI Clock Ratio
The JP23 is used to specify the relationship of PCI
and FSB clock. Generally speaking, if you are not
overclockers, we recommend set the jumper at the
default setting.
1
2
1
3
4
3
5
6
5
7
8
7
Auto
PCI=FSB/2
(default)
(133~150MHz)
7. Install DIMM Modules
This motherboard has three 168-pin DIMM sockets that allow you to install PC100 or
PC133 memory up to 1.5GB. Only SDRAM is supported.
Pin 1
DIMM1
DIMM2
DIMM3
2
1
2
1
4
3
4
3
6
5
6
5
8
7
8
7
PCI=FSB/3
PCI=FSB/4
(100~124MHz)
(66~83MHz)
Tip: The driving capability of new
generation chipset is limited due to the
lack of a memory buffer (to improve
performance). This makes DRAM chip
count an important factor to take into
consideration when you install DIMMs.
Unfortunately, there is no way that the
BIOS can identify the correct chip
count, you need to calculate the chip
count by yourself. The simple rule is:
By visual inspection, use only
DIMMs which are less than 16
chips.
8. Connecting IDE and Floppy Cable
Connect 34-pin floppy cable and 40-pin ATA66 or ATA33 IDE cable to floppy connector
FDC and IDE connector IDE1, IDE2. Pin1 of cable is normally marked with red color. Be
careful of the pin1 orientation. Wrong orientation may cause system damage.
2
4
FDD Connector
6
8
Pin 1
Attach the power LED, keylock, speaker, and
reset switch connectors to the corresponding
pins. If you enable "Suspend Mode" item in
BIOS Setup, the ACPI & Power LED will keep
flashing while the system is in suspend mode.
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 SPWR.
Secondary
Slave (4th)
ATA66 IDE
Connector
Pin 1
Primary
Slave (2nd)
9. Connecting Front Panel Cable
Secondary
Master (3rd)
IDE1 (Primary)
Primary
Master (1st)
1
+
Keylock
+
SPWR
ACPI &
IDE HDD
+
+
Power LED
LED
+
+
Speaker
Reset
1
GND
SPWR
KEYLOCK
GND
+5V
ACPI & PWR LED
IDE LED
GND
IDE LED
+5V
+5V
NC
+5V
NC
GND
GND
NC
RESET
SPEAKER
GND
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