Chapter 3. Server power, controls, and indicators
25
Operator information panel
Operato
r info
rmation
panel
The following illustration shows the location of the lights on the operator information
panel on the front of the server (see “Controls and indicators” on page 23 for the
location of the operation information panel).
Power-on light:
This green LED lights when system power is present in the server.
When this light flashes, the server is in standby mode (the system power supply is
turned off and current is present). If this light is not on, the power cord is not
connected, the power supply has failed, or this LED has failed. See Chapter 5,
“Solving problems,” on page 31.
POST complete light:
This green LED lights when the server completes the power-
on self-test (POST) without any errors.
SCSI hard disk drive in-use light:
This green LED lights when there is activity on a
hard disk drive.
Information light:
This amber LED lights when the information log contains
information about certain conditions in your server that might affect performance. For
example, the light will be on if your server has multiple power supplies and does not
have redundant power. An LED on the diagnostic panel on the system board will also
be on.
System error light:
This amber LED lights when a system error occurs. An LED on
the diagnostic panel on the system board will also be on to further isolate the error.
Ethernet transmit/receive activity light:
This green LED lights when there is
transmit or receive activity to or from the server.
Ethernet link status light:
This green LED lights when there is an active connection
on the Ethernet port during typical operation. When the system is powered off, the
LED might remain green.
Ethernet speed light:
This green LED lights when the Ethernet LAN speed is 100
Mbps during typical operation. When the system is powered off, the LED might remain
green.
OK
100
MB
LINK
OK
TX
RX
Power-on
light
POST
complete light
SCSI hard
disk drive
in-use light
Information
light
System
error light
Ethernet
speed light
Ethernet link
status light
Ethernet transmit/
receive activity light
