Remind Button; Light Path Diagnostic Leds - IBM System x3800 Manual

Remind button

You can use the remind button on the light path diagnostics panel to put the
system-error LED on the operator information panel into Remind mode. When you
press the remind button, you acknowledge the error but indicate that you will not
take immediate action. The system-error LED flashes while it is in Remind mode
and stays in Remind mode until one of the following conditions occurs:
v All known errors are corrected.
v The server is restarted.
v A new error occurs, causing the system-error LED to be lit again.

Light path diagnostic LEDs

The following table describes the LEDs on the light path diagnostics panel and
suggested actions to correct the detected problems.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, System x3800 Type 8865," on page 107 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Lit light path
diagnostics LED with
the system-error or
system-information
LED also lit Description
All LEDs off (the
power LED is lit).
OVERSPEC There is insufficient power to power
the system. The NON RED and
LOG LEDs might also be lit.
PS A power supply or power supply
filler has failed or has been
removed; also see "Power-supply
LEDs" on page 69.
Note: In a redundant power
configuration, the dc power LED on
one power supply might be off.
LINK Reserved for future use
64
IBM System x3800 Type 8865: Problem Determination and Service Guide
Action
No action necessary.
1. Check that ac power is available to all power
supplies.
2. Replace any failed power supply.
3. Reseat the following components:
a. Power supply
b. Microprocessor tray
4. Remove optional devices.
5. Replace the components listed in step 3 one at a
time, in the order shown, restarting the server each
time.
1. Reinstall the removed power supply or power
supply filler.
2. Check the individual power-supply LEDs to find the
failing power supply or power supply filler.
3. Reseat the following components:
a. Failing power supply or power supply filler
b. Microprocessor tray
4. Replace the components listed in step 3 one at a
time, in the order shown, restarting the server each
time.
5. If a 12 V fault has occurred, remove ac power
before restoring dc power.