IBM 8841 - eServer xSeries 236 Installation Manual

Also see for 8841 - eServer xSeries 236: Option installation guide

Contents

Symptom Suggested actionThe monitor has screen jitter, orthe screen image is wavy,unreadable, rolling, or distorted.If the monitor self-tests show that the monitor is working correctly, consider thelocation of the monitor. Magnetic fields around other devices (such as transformers,appliances, fluorescent lights, and other monitors) can cause screen jitter or wavy,unreadable, rolling, or distorted screen images. If this happens, 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 300 mm (12 in.) apart, and turn on themonitor.Notes:1. To prevent diskette drive read/write errors, make sure that the distancebetween the monitor and diskette drives is at least 75 mm (3 in.).2. Non-IBM monitor cables might cause unpredictable problems.3. An enhanced monitor cable with additional shielding is available for the 9521and 9527 monitors. For information about the enhanced monitor cable, contactyour IBM marketing representative or authorized reseller.If the problem remains, call for service.Wrong characters appear on thescreen.If the wrong language is displayed, update the BIOS code with the correctlanguage.If the problem remains, call for service.Option problemsSymptom Suggested actionAn IBM option that was justinstalled does not work.Make sure that:v The option is designed for the server. See the “Server Support” flowchart forinformation about obtaining ServerProven compatibility information from theWorld Wide Web.v You followed the installation instructions that come with the option.v The option is installed correctly.v You have not loosened any other installed options or cables.v You have updated the configuration information in the Configuration/Setup Utilityprogram. Whenever memory or an option is changed, you must update theconfiguration.If the problem remains, call for service.An IBM option that used to workdoes not work now.v Make sure that all of the option hardware and cable connections are secure.v If the option comes with test instructions, use those instructions to test theoption.v If the failing option is a SCSI device, make sure that:– The cables for all external SCSI devices are connected correctly.– The last device in each SCSI chain, or the end of the SCSI cable, isterminated correctly.– Any external SCSI devices are turned on. You must turn on external SCSIdevices before turning on the server.If the problem remains, call for service.Chapter 6. Solving problems 49