IBM 887022X Maintenance Manual - Page 245
Undetermined
UPC - 000435151957
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Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. Monitor problems Symptom FRU/action The screen is blank. 1. Verify that: v The computer power cord is plugged into the server, and into a working electrical outlet or power distribution unit. v The monitor cables are connected properly. Note: For server models with a Remote Supervisor Adapter II-EXA installed, the integrated video controller on the server is disabled. You must connect the monitor to the video port on the Remote Supervisor Adapter II-EXA. v The monitor is turned on and the Brightness and Contrast controls are adjusted correctly. Note: When two servers are connected in a 16-way configuration, the DVD-ROM drive, diskette drive, keyboard, USB ports (except for Remote Supervisor Adapter II-EXA functionality), mouse, and video are disabled on the secondary server. 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 server three times to force the system BIOS code to reset the CMOS values to the default configuration (memory connector or bank of connectors enabled). 2. Make sure that damaged BIOS code is not affecting the video; see "Recovering BIOS code" on page 75. 3. If you have verified these items and the screen remains blank, replace: a. Monitor b. I/O board Only the cursor appears. v See "Undetermined problems" on page 246. The monitor works when you turn on the computer but goes blank when you start some application programs. 1. Verify that: v The application program is not setting a display mode higher than the capability of the monitor. v The primary monitor cable is connected to the server. v You installed the necessary device drivers for the applications. 2. Monitor. 3. I/O board. Note: When two servers are connected in a 16-way configuration, the DVD-ROM drive, diskette drive, keyboard, USB ports (except for Remote Supervisor Adapter II-EXA functionality), mouse, and video are disabled on the secondary server. Chapter 7. Symptom-to-FRU index 235