Jumper Setting - VIA Technologies VX900 User Manual

Express chipset based motherboard
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3-3 Jumper Setting

(1) CMOS RAM Clear (2-pin): JBAT
A battery must be used to retain the motherboard configuration in CMOS RAM,
short 1-2 pins of JBAT to clear the CMOS data.
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 JBAT and short pins 1-2 for a few seconds, if shorted with the jump cap,
short for a few seconds then pull out the hat.
4.
Connect ATX power cable back to ATX power connector
Note: When should clear CMOS
1. Troubleshooting
2. Forget password
3. After over clocking system boot fail
(2) KB/MS Power on Function Enabled/Disabled: JP1
JBAT
1-2 Open: Normal
CMOS Clear Setting
JP1
1-2 Closed KB/MS Power ON Disable (Default)
Keyboard/Mouse Power On Setting
1-2 Short: CMOS Clear
JP1
2-3 Closed KB/MS Power ON Enabled
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