The
AZZA
P4M Mainboard Series
Page 24
2.9.1. JP1: Keyboard Power
Type: 3 pin
Default: Pin 1 and Pin 2 Short
Some keyboards may not follow standard specifications. If you find you are
having problems with your keyboard, change the settings on Pin 2 and Pin 3.
This might help you to solve the problem.
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 speci-
fications. If you are using such a device it may unstable. If you do experience
problems try to change the setting on Pin 2 and Pin 3. This might help solve
this problem.
2.9.3. JP4: Clear CMOS Memory
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, JP4, to clear the CMOS memory 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.
5. Turn your PC on and run the BIOS setup program
Jumper Locations
JP1
1 2 3
1 2 3
JP 4
JP 2
1
2
3
Hardware Installation
