Microprocessor problems
vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
vSee the Problem Determination and Service Guide on the IBM System x Documentation CD to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.
Symptom | Action | ||
|
|
| |
The server emits a continuous | 1. | Correct any errors that are indicated by the light path diagnostics LEDs (see | |
beep during POST, indicating | |||
| “Light path diagnostics LEDs” on page 91). | ||
that the startup (boot) |
| ||
2. | Make sure that the server supports all the microprocessors and that the | ||
microprocessor is not working | |||
| microprocessors match in speed and cache size. | ||
correctly. |
| ||
3. | (Trained service technician only) Reseat Microprocessor 1 | ||
| |||
| 4. | (Trained service technician only) If there is no indication of which | |
|
| microprocessor has failed, isolate the error by testing with one microprocessor | |
|
| at a time. | |
| 5. | Replace the following components one at a time, in the order shown, restarting | |
|
| the server each time: | |
|
| a. (Trained service technician only) microprocessor 2 | |
|
| b. VRM 2 | |
|
| c. (Trained service technician only) System board | |
| 6. | (Trained service technician only) If there are multiple error codes or light path | |
|
| diagnostics LEDs that indicate a microprocessor error, reverse the locations of | |
|
| two microprocessors to determine whether the error is associated with a | |
|
| microprocessor or with a microprocessor socket. | |
|
| v If the error is associated with a microprocessor, replace the microprocessor. | |
|
| v If the error is associated with a VRM, replace the VRM. | |
|
| v If the error is associated with a microprocessor socket, replace the system | |
|
| board. | |
|
|
| |
Monitor problems
Some IBM monitors have their own
