Diagnostic Panel Leds - IBM 866631Y - Netfinity 7100 - 8666 Hardware Maintenance Manual

the location of these LEDs.
The following table describes the AC and DC power LEDs. For more information
see "Power checkout" on page 19.

Diagnostic panel LEDs

The following illustration shows the LEDs on the diagnostics panel inside the
server. See Table 1 on page 17 for information on identifying problems using these
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Hardware Maintenance Manual: Netfinity 7100 – Type 8666
Handle
DC power light
AC power DC Description and action
LED power
LED
On On The power supply is on and operating correctly.
On Off There is a dc power problem.
Possible causes:
1. The server is not turned on (the power LED is blinking on the
2. The power supply has failed.
Off Off There is an ac power problem.
Possible causes:
1. There is no ac power to the power supply.
2. The power supply has failed.
AC power light
front of the server).
Action: Press the power-control button to start the server.
Action: Replace the power supply.
Actions: Verify that:
v The electrical cord is properly connected to the server.
v The electrical outlet functions properly.
Action: Replace the power supply.
Filler panel