IBM HS40 manual Hardware Maintenance Manual and Troubleshooting Guide, Documentation CD

Note: See Chapter 7, “Parts listing, Type 8839,” on page 105 to determine which components should be replaced by a field service technician.

Monitor problems

Symptom	FRU/action
Testing the monitor.	See the information that comes with the monitor for adjusting and testing
	instructions. (Some IBM monitors have their own self-tests.)
The screen is blank.	1. Make sure that:
	v The keyboard/mouse/video select button LED on the front of the blade
	server is lit, indicating that the blade server is connected to the shared
	BladeCenter monitor.
	v The system power cord is plugged into the BladeCenter power module and a
	working electrical outlet.
	v The monitor cables are connected properly.
	v The monitor is turned on and the Brightness and Contrast controls are
	adjusted correctly.
	v If the computers are C2T chained together, verify that:
	– The C2T chain cables are securely connected to the computers.
	– The C2T breakout cable is connected properly.
	– A computer that is turned on is selected.
	Important: In some memory configurations, the 3-3-3 beep code might sound
	during POST followed by a blank display screen. If this occurs and the Boot
	Fail Count feature in the Start Options of the Configuration/Setup Utility
	program is set to Enabled (its default setting), you must restart the computer
	three times to force the system BIOS to reset the CMOS values to the default
	configuration (memory connector or bank of connectors enabled).
	2. If you have verified these items and the screen remains blank, replace:
	a. Monitor
	b. Management module on the BladeCenter (see the IBM BladeCenter Type
	8677 Hardware Maintenance Manual and Troubleshooting Guide).
Only the cursor appears.	Make sure that the keyboard, video and mouse on the BladeCenter have not
	been switched to another blade server. If the problem remains,
	see“Undetermined problems” on page 101.
The monitor goes blank when	Make sure that the monitor cable is connected to the video port on the
you direct it to a working	BladeCenter management module. Some IBM monitors have their own self-tests.
blade server, or goes blank	If you suspect a problem with your monitor, see the information that comes with the
when you start some	monitor for adjusting and testing instructions.
application programs in the	If you still cannot find the problem, try using the monitor with another blade server.
blade servers.
	If the problem persists, see the IBM BladeCenter Type 8677 Hardware
	Maintenance Manual and Troubleshooting Guide on the IBM BladeCenter
	Documentation CD.

92BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide