Jbat1: Clear Cmos (Reset Bios) Jumper; Ez Debug Leds - MSI B450 TOMAHAWK MAX II Manual

JBAT1: Clear CMOS (Reset BIOS) Jumper

There is CMOS memory onboard that is external powered from a battery located on
the motherboard to save system configuration data. If you want to clear the system
configuration, set the jumper to clear the CMOS memory.
Resetting BIOS to default values
1. Power off the computer and unplug the power cord.
2. Use a jumper cap to short JBAT1 for about 5-10 seconds.
3. Remove the jumper cap from JBAT1.
4. Plug the power cord and Power on the computer.

EZ Debug LEDs

These LEDs indicate the status of key components during booting process. When an
error is occurred, the corresponding LED stays lit until the problem is solved.
22
Overview of Components
Keep Data
(default)
CPU - indicates CPU is not detected or fail.
DRAM - indicates DRAM is not detected or fail.
VGA - indicates GPU is not detected or fail.
BOOT - indicates the booting device is not detected
or fail.
Clear CMOS/
Reset BIOS