Asus DSBF-DM SAS User Manual page 22

2. Hearbeat LED (for DSBF-DM/SAS only)
The green heartbeat LED blinks per second to indicate that the LSI 1068
chipset is working normally.
DSBF-DM Series Heart Beat LED
3. CPU Warning LED
The red CPU warning LED lights up as a reminder if CPU is not installed or
not properly installed in the CPU socket 1.
DSBF-DM Series CPU warning LED
If the CPU warning LED lights up, the motherboard will not boot.
2-2
®
®
LED1
ON
LSI SAS 1068
starts working
CPU_WARN1
ON
CPU1 not present CPU1 present
Chapter 2: Hardware information
OFF