IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

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Information LED panel
The information LED panel on the front of the server
contains status lights.
OK
100
MB
100
MB
LINK
OK
LINK
OK
TX
RX
1
2
System Power
Light
System POST
Complete Light
SCSI Hard Drive
Activity Light
System Error Light
Processor 1
Activity Light
Ethernet
Speed 100 Mbps Light
Ethernet Link
Status Light
Ethernet Transmit/Receive
Activity Light
Processor 2
Activity Light
System Power Light: When this green light is lit,
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 ac current is
present). When this light is off, it indicates either
power supply failure, an ac power failure, or a light
failure.
Note
If this light is off, it does not mean there is no
electrical current present in the server. The light
might be burned out. To remove all electrical
current from the server, you must unplug the
server power cords from the electrical outlets.
System POST Complete Light: This green light is lit
when the power-on self-test (POST) completes
without any errors.
SCSI Hard Drive Activity Light: This green light is
lit when there is activity on a hard drive.
System Error Light: This amber light is lit when a
system error occurs. A light on the diagnostics LED
panel will also be lit to further isolate the error. (For
more information, see “Symptom-to-FRU index” on
page 264)
Processor 1 Activity Light: This green light is lit
when there is activity on microprocessor 1 (the
primary microprocessor).
Processor 2 Activity Light: This green light is lit
when there is activity on microprocessor 2 (the
secondary microprocessor).
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