Compaq ProLiant 8000 ProLiant 8000 Servers Maintenance and Service Guide - Page 112

Table 4-6, System Interlock LEDs on I/O Board

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Connectors, Switches, and Status Indicators 4-9 Table 4-6 System Interlock LEDs on I/O Board Possible Affected Components to Check Interlock Power (Aux 5V) Power Fail System Interlock None (system operational) If the server does not power up: 1. Reinsert the power supply. ON OFF OFF 2. Place the Power On/Standby switch to ON. 3. Verify that the power supply status LED blinks green for 10 to 20 seconds and then is solid green when the server powers up. 4. If the Power Supply Status LED stays dark (does not blink), verify that the I/O board power cable is connected at the I/O board and the power backplane. Power switch cables ON OFF ON I/O-to-processor board connection Processor board components Processor Power Modules ON ON OFF Power supplies Power cables Note: If the System Interlock LED is on, check the processor board LEDs to isolate the failure point.

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Connectors, Switches, and Status Indicators
4-9
Table 4-6
System Interlock LEDs on I/O Board
Possible Affected Components to Check
Interlock
Power
(Aux 5V)
Power
Fail
System
Interlock
None (system operational)
ON
OFF
OFF
If the server does not power up:
1.
Reinsert the power supply.
2.
Place the Power On/Standby switch to ON.
3.
Verify that the power supply status LED blinks green for
10 to 20 seconds and then is solid green when the server
powers up.
4.
If the Power Supply Status LED stays dark (does not
blink), verify that the I/O board power cable is connected
at the I/O board and the power backplane.
Power switch cables
ON
OFF
ON
I/O-to-processor board connection
Processor board components
Processor Power Modules
ON
ON
OFF
Power supplies
Power cables
Note:
If the System Interlock LED is on, check the processor board LEDs to isolate the failure point.