IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

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No beep symptoms
No Beep Symptom FRU/Action
No beep and the system
operates correctly.
1. Check speaker cables
2. Speaker
3. System Board
No Beeps occur after
successfully completing
POST
(The Power-On Status is
disabled.) 1. Run
Configuration/Setup,
set the Start Options
Power-On Status to
enable.
2. Check speaker
connection.
3. Speaker
4. System Board
No ac power
(Power supply ac LED is
off) 1. Check the power
cord
2. Power Supply (If two
are installed, swap
them to determine if
one is defective.)
3. Power Backplane
4. Hot-Swap Power AC
Inlet Box
No beep and no video 1. See “Undetermined
problems” on
page 291.
System will not power-up
(Power supply ac LED is
on) 1. See “Power supply
LED errors” on
page 278.
Control panel system error LED
The system error LED is turned on on when an error is
detected. If the system error LED is on, remove the cover
and check the diagnostic panel LEDs. The following is a
complete list of diagnostic panel LEDs followed by the
FRU/Action for replacing the problem.
Notes
1. To locate the LEDs on the processor board see
“Processor board component locations” on
page 227.
2. To locate the LEDs on the system board see
“System board component locations” on
page 255.
3. Check the system error log for additional
information before replacing a FRU.
Diagnostic Panel LED FRU/Action
CPU LED on
(The LED next to the failing
CPU is on.) 1. Processor 1 or 2 on
(Processor 1 or 2).
2. Processor Board
Netfinity 5500 - Type 8660
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