IBM xSeries 236 8841, Руководство пользователя, Страница: 139 / 210

Note: See “System replaceable units” on page 144 to determine which components should be replaced by a field
service technician.
Symptom FRU/action
An IBM option that used to work
does not work now.
1. Verify that all of the option hardware and cable connections are secure.
2. If the option comes with its own test instructions, use those instructions to test
the option.
3. If the failing option is a SCSI option, verify that:
v
The cables for all external SCSI options are connected correctly.
v
The last option in each SCSI chain, or the end of the SCSI cable, is
terminated correctly.
v
Any external SCSI option is turned on. You must turn on an external SCSI
option before turning on the server.
4. Failing option.
Power error symptoms
Note: See “System replaceable units” on page 144 to determine which components should be replaced by a field
service technician.
Symptom FRU/action
The power switch does not work
and the reset button, if
supported, does work.
1. Reseat the connector.
2. Power switch card.
3. System board.
The server does not turn on.
1. Verify that:
v
The power cables are properly connected to the server.
v The power supply LEDs indicate correct operation (see “Power-supply LED
errors” on page 116).
v The electrical outlet functions properly.
v
The type of memory installed is supported by the server, and that functional
DIMMs are installed in slots 1 and 2.
v
If you just installed an option, remove it, and restart the server. If the server
now turns on, you might have installed more options than the power supply
supports.
2. If LEDs for microprocessors or VRMs are on, verify that:
a. A VRM is installed if a second microprocessor is present.
b. All microprocessors have the same speed.
3. Override front panel power button:
a. Disconnect server power cords.
b. Move the force power-on password switch (SW1) from its upward position
to its lower position.
c. Reconnect power cords.
If server turns on:
a. Service processor (baseboard management controller) error.
b. Operator information card.
If server does not turn on:
v System board
Chapter 6. Symptom-to-FRU index
129