IBM 8490, 8485 manual Microprocessor problems, Monitor problems

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 parts listing in the Problem Determination and Service Guide 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.	Make sure that the microprocessor is supported on this server.
beep during POST, indicating
	2.	(Trained service technician only) Reseat the microprocessor.
that the startup (boot)
	3.	Replace the following components one at a time, in the order shown, restarting
microprocessor is not working
correctly.		the server each time:
		a. (Trained service technician only) Microprocessor
		b. (Trained service technician only) System board

Monitor problems

Some IBM monitors have their own self-tests. If you suspect a problem with your monitor, see the information that comes with the monitor for instructions for testing and adjusting the monitor. If you cannot diagnose the problem, call for service.

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide 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
Testing the monitor	1.	Make sure that the monitor cables are firmly connected.
	2.	Try using a different monitor on the server, or try using the monitor that is being
		tested on a different server.
	3.	Run the diagnostic programs. If the monitor passes the diagnostic programs,
		the problem might be a video device driver.
	4.	Reseat the Remote Supervisor Adapter II (if one is present).
	5.	Replace the following components one at a time, in the order shown, restarting
		the server each time:
		a. Remote Supervisor Adapter II (if one is present)
		b. (Trained service technician only) System board

Chapter 5. Solving problems 69