IBM 86645RY Hardware Maintenance Manual - Page 98

SCSI Hard Disk Drive Activity Light, Ethernet Transmit/Receive Activity Light

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OK 1 2 100 LINK TX MB OK RX 1 System Power Light: When this green light is on, 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, either a power supply, AC power, or a light has failed. Attention 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. 2 System POST Complete Light: This green light is on when the power-on self-test (POST) completes without any errors. 3 SCSI Hard Disk Drive Activity Light: This green light is on when there is activity on a hard disk drive. 4 Processor 1 Activity Light: This green light is on when there is microprocessor 1 activity. 5 Processor 2 Activity Light: This green light is on when there is microprocessor 2 activity. 6 Information Light: This amber light is on when the information log contains information about certain conditions in the server that might affect performance. For example, the light will be on if the server does not have redundant power. A light on the diagnostic LED panel will also be on. (For more information, see "Status LEDs" on page 195.) 7 System Error Light: This amber light is on when a system error occurs. A light on the diagnostic LED panel will also be on to further isolate the error. (For more information, see "Status LEDs" on page 195.) 8 Ethernet Transmit/Receive Activity Light: When this green light is on, there is transmit or receive activity to or from the server. 90 Netfinity Server HMM

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100
MB
LINK
OK
TX
RX
OK
1
2
±1²
System Power Light:
When this green light is on,
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, either a power
supply, AC power, or a light has failed.
Attention
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.
±2²
System POST Complete Light:
This green light is
on when the power-on self-test (POST) completes
without any errors.
±3²
SCSI Hard Disk Drive Activity Light:
This green
light is on when there is activity on a hard disk
drive.
±4²
Processor 1 Activity Light:
This green light is on
when there is microprocessor 1 activity.
±5²
Processor 2 Activity Light:
This green light is on
when there is microprocessor 2 activity.
±6²
Information Light:
This amber light is on when the
information log contains information about certain
conditions in the server that might affect
performance.
For example, the light will be on if
the server does not have redundant power.
A light
on the diagnostic LED panel will also be on.
(For
more information, see “Status LEDs” on page
195.)
±7²
System Error Light:
This amber light is on when a
system error occurs.
A light on the diagnostic LED
panel will also be on to further isolate the error.
(For more information, see “Status LEDs” on
page 195.)
±8²
Ethernet Transmit/Receive Activity Light:
When
this green light is on, there is transmit or receive
activity to or from the server.
90
Netfinity Server HMM