IBM 8872 - eServer xSeries 460 Service Manual

Contents

v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, Type 8872 and Type 8874,” on page 93 to determine which components arecustomer replaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by atrained service technician.Symptom ActionThe monitor works when youturn on the server, but thescreen goes blank when youstart some applicationprograms.1. Make sure that:v The application program is not setting a display mode that is higher than thecapability of the monitor.v You installed the necessary device drivers for the application.2. Run video diagnostics (see “Running the diagnostic programs” on page 59).v If the server passes the video diagnostics, the video is good; see “Solvingundetermined problems” on page 90.v (Trained service technician only) If the server fails the video diagnostics,reseat the I/O board.v Replace the I/O board.The monitor has screen jitter, orthe screen image is wavy,unreadable, rolling, or distorted.1. If the monitor self-tests show the monitor is working correctly, consider thelocation of the monitor. Magnetic fields around other devices (such astransformers, appliances, fluorescent lights, and other monitors) can causescreen jitter or wavy, unreadable, rolling, or distorted screen images. If thishappens, turn off the monitor.Attention: Moving a color monitor while it is turned on might cause screendiscoloration.Move the device and the monitor at least 305 mm (12 in.) apart, and turn onthe monitor.Notes:a. To prevent diskette drive read/write errors, make sure that the distancebetween the monitor and any external diskette drive is at least 76 mm (3in.).b. Non-IBM monitor cables might cause unpredictable problems.2. Reseat the following components:a. Monitorb. Remote Supervisor Adapter II SlimLine (if one is present)c. I/O board3. Replace the components listed in step 2 one at a time, in the order shown,restarting the server each time.Wrong characters appear on thescreen. 1. If the wrong language is displayed, update the BIOS code (see “Updating thefirmware” on page 133) with the correct language.2. Reseat the following components:a. Monitorb. I/O board3. Replace the components listed in step 2 one at a time, in the order shown,restarting the server each time.44 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide