Asus RS161-E5 - 0 MB RAM, Service Manual

Page: 52 / 124

Chapter 4: Motherboard information 4-4
4.2 Onboard LED
1. Standby Power LED
The motherboard comes with a standby power LED. The green LED lights up
to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a
reminder that you should shut down the system and unplug the power cable
before removing or plugging in any motherboard component. The illustration
below shows the location of the onboard LED
KFSN4-DRE
®
KFSN4-DRE Onboard LED
ON OFF
MEM_W ARN1
Abnormal Normal
(green)
ON OFF
CPU_W ARN1
Abnormal Normal
(green)
2. CPU warning LED (CPU_WARN1)
The CPU warning LED lights up to indicate that a processor is not installed or
the processor is not installed properly in CPU 1 socket.
3. Memory warning LED (MEM_WARN1)
The memory warning LED lights up to indicate that there is no power in the
memory DIMMs.
KFSN4-DRE
®
KFSN4-DRE Standby power LED
SB_PWR1
ON
Standby
Power
OFF
Powered
Off