Asus DSEB-D16/SAS - Manual (Page 22)

2-2 Chapter 2: Hardware information
3. Hearbeat LED (for DSEB-D16/SAS only)
The green heartbeat LED blinks per second to indicate that the LSI 1068
chipset is working normally.
®
DSEB-D16 Series Heart Beat LED
ON
LED1
LSI SAS 1068
starts working
2. 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 2.
• When installing only one CPU, the CPU has to be installed to CPU2 socket
for a better thermal environment.
• If the CPU warning LED lights up, the motherboard will not boot.
®
DSEB-D16 Series CPU warning LED
ON OFF
CPU_WARN1
CPU1 not present CPU1 present
(red)