Jaud1: Front Audio Connector; Jcom1: Serial Port Connector; Jbat1: Clear Cmos (Reset Bios) Jumper; Ez Debug Led: Debug Led Indicators - MSI B150M GRENADE Mode D'emploi

JAUD1: Front Audio Connector

This connector allow you to connect audio jacks on the front panel.
2 10
1
9

JCOM1: Serial Port Connector

This connector allows you to connect the optional serial port with bracket.
2 10
1
9

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)
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 LED: Debug LED indicators

These LEDs indicate the status of the motherboard.
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 booting device is not detected or fail.
1 MIC L
3 MIC R
5 Head Phone R
7 SENSE_SEND
9 Head Phone L
1 DCD
3 SOUT
5 Ground
7 RTS
9 RI
2
4
6 MIC Detection
8
10 Head Phone Detection
2
4
6
8
10
Clear CMOS/ Reset
BIOS
Ground
NC
No Pin
SIN
DTR
DSR
CTS
No Pin
Rear I/O Panel
15