Intel Understanding the JBAT1 Jumper: Clear CMOS for Optimal IM-Q35 Mainboard Performance

IM-Q35 Mainboard

Jumper

Clear CMOS Jumper: JBAT1

There is a CMOS RAM onboard that has a power supply from an external battery to keep the data of system configuration. With the CMOS RAM, the system can auto- matically boot OS every time it is turned on. If you want to clear the system configuration, set the jumper to clear data.

JBAT1	1	3	1	3
1	Keep Data		Clear Data

Important

You can clear CMOS by shorting 2-3 pin while the system is off. Then return to 1-2 pin position. Avoid clearing the CMOS while the system is on; it will damage the mainboard.

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