MSI A520 - Инструкция по эксплуатации - Страница 36

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Overview of Components

BAT1

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 jumpers to clear the CMOS memory. 

Keep Data 

(default)

Clear CMOS/ 

Reset BIOS

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.

BAT1

EZ Debug LED

These LEDs indicate the debug status of the motherboard. 

CPU

 - indicates CPU is not detected or fail.

DRAM

 - indicates DRAM is not detected or fail.

VGA

 - indicates GPU/ PCIE/ M.2 device is not detected 

or fail.

BOOT

 - indicates the booting device is not detected 

or fail.