IBM eServer 135 xSeries User Reference Manual page 103

Device
The mouse or pointing device
does not work.
Memory problems
The amount of memory
displayed is less than the
amount of memory that is
installed.
Microprocessor problems
The server emits a continuous
tone during POST.
Monitor problems
Table 15. Troubleshooting charts
• Verify that the mouse or pointing-device cable is securely connected and the
device drivers are installed correctly.
• Try using another mouse or pointing device.
If the problem persists, call for service.
Verify that:
• The memory modules are seated properly.
• You have installed the correct type of memory.
• If you changed the memory, you updated the memory configuration with the
Configuration/Setup Utility program.
• All banks of memory on the DIMMs are enabled. The server might have
automatically disabled a DIMM bank when it detected a problem, or a DIMM
bank could have been manually disabled.
Look in the POST error log for error message 289:
• If the DIMM was disabled by a systems-management interrupt (SMI), replace
the DIMM.
• If the DIMM was disabled by the user or by POST:
1. Start the Configuration/Setup Utility program.
2. Enable the DIMM.
3. Save the configuration and restart the server.
• If you continue to get this error, replace the DIMM.
If the problem persists, call for service.
The startup (boot) microprocessor is not working properly.
Verify that the startup microprocessor is seated properly. If it is, replace the startup
microprocessor.
If the problem remains, call for service.
Suggested action
Chapter 6. Solving Problems
91