Biostar B560MH-E 2.0 - Leds

18 | Chapter 2: Hardware installaon
COM1: Serial Port Header
The motherboard has a serial port header for connecng RS-232 Port.
Pin Assignment
1 Carrier detect
2 Received data
3 Transmied data
4 Data terminal ready
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
10 Key
2.8 LEDs
Debug LED: Debug LED Indicators
This 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 boong device is not detected
or fail.
Note

»
Aerstarngthecomputer,theLEDindicatorswilllightupinthefollowingorder:
CPU→DRAM→VGA→BOOT

»
Whenthecomputerisready,theLEDindicatorwillshowwheretheerroroccurredandwillstayon
unltheproblemissolved.

»
Aerthecomputerisstarted,theDebugLEDwillnotlightupifthereisnoabnormalitydetected.