IBM manual Troubleshooting charts, IBM xSeries 220 User’s Reference

Device		Suggested action
Intermittent problems	Verify that:
	1.	All cables and cords are connected securely to the rear of the server and attached
A problem occurs only
occasionally and is difficult to		options.
detect.	2.	When the server is turned on, air is flowing from the rear of the server at the fan
		grill. If there is no airflow, the fan is not working. This causes the server to
		overheat and shut down.
	3.	Ensure that the SCSI bus and devices are configured correctly and that the last
		external device in each SCSI chain is terminated correctly.
	If the items above are correct, call for service.
Keyboard, mouse, or pointing-	1. Make sure that the keyboard cable is properly connected to the server.
device problems	2.	Make sure that the server and the monitor are turned on.
All or some keys on the	3.	Try using another keyboard.
keyboard do not work.
	If the items above are correct, call for service.
The mouse or pointing device	1.	Verify that the mouse or pointing-device cable is securely connected and the
does not work.		device drivers are installed correctly.
	2.	Try using another mouse or pointing device.
	If the problem remains, call for service.
Memory problems	Verify that:
	1.	The memory modules are seated properly.
The amount of memory
displayed is less than the	2.	You have installed the correct type of memory.
amount of memory installed.
	3.	If you changed the memory, you updated the memory configuration with the
		Configuration/Setup Utility program.
	4.	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 system-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.
Microprocessor problems	The startup (boot) microprocessor is not working properly.
The server emits a continuous	Verify that the startup microprocessor is seated properly. If it is, replace the startup
tone during POST.
	microprocessor.
	If the problem remains, call for service.

Table 16. Troubleshooting charts

102 IBM® xSeries 220 User’s Reference