IBM 866441Y - Netfinity 5600 - 8664, Hardware Maintenance Manual

Page: 204 / 276

Diagnostics panel LEDs:
The following illustration
shows the LEDs on the diagnostics panel inside the
server. See “Light path diagnostics” on page 13 for
information on identifying problems using these LEDs.
AC Power
LED DC Power
LED Description and action
On On The power supply is on and
operating correctly.
On Off There is a DC power problem.
Possible causes:
1. The Power Control button
on the front of the server is
in the Off position.
Action: Press the Power
Control button to start the
server.
2. The power supply has
failed.
Action: Replace the
power supply.
Off Off There is an AC power problem.
Possible causes:
1. There is no AC power to
the power supply.
Actions: Verify that:
Ÿ
The power cord is
properly connected to
the server.
Ÿ
The power outlet
functions properly.
2. The power supply has
failed.
Action: Replace the
power supply.
If the problem persists, go to
“Undetermined problems” on
page 215
196
Netfinity Server HMM