P4X MAINBOARD SERIES
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2.9.2. JP2: USB 1 and USB 2 power
Type: 3 pin
Default: Pin 1 and Pin 2 Short
This jumper allows you to select the voltage that is supplied to USB 1 and USB 2.
You have two choices: 5 V (pin 1 and pin 2 short) or standby 5 V (pin 2 and pin
3 short). Some USB devices may not follow the standard USB power specifica-
tions. If you are using such a device it may unstable. If you do experience prob-
lems try to change the setting on JP 2. This might help solve this problem.
2.9.3. JP4 and JP5: CPU FSB Clock (optional)
Type: (JP4) 2 pin/(JP5) 2 pin
Default: (JP4) short/ (JP5) open
This allows you to select the speed of your CPU. If you are using a 400 MHz FSB
CPU on your mainboard then you need to SHORT JP4 and OPEN JP5. If you
are using a 533 MHz FSB CPU (with a 133 MHz) you need to OPEN JP4 and
SHORT JP5. Refer to the following table.
Hardware Installation
2.9.4. JP13: Clear CMOS
Type: 3 pin
Default: Pin 1 and Pin 2 Short
If you have made an improper setting in the BIOS setup and your computer is
not functioning, or if you have forgotten your password, you can use this
jumper, JP13, to clear the CMOS and to reconfigure your system.
To clear the CMOS, please follow these instructions:
1.
Turn the system power “OFF” and unplug your computer.
2.
Insert the jumper cap on Pin 2 and Pin 3 for 3 ~ 5 seconds.
3.
Pull out the jumper cap and replace it on Pin 1 and Pin 2.
4.
Turn your PC on and run the BIOS setup program
.
JP4
JP5
FSB 400
(100)
Short
Open
FSB 533
(133)
Open
Short
