IBM 8479 Hardware Maintenance Manual - Page 101
FRU/Action
UPC - 087944653912
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General FRU/Action CD-ROM drive tray is not working. (The server must be powered-on.) 1. Insert the end of a paper clip into the manual tray-release opening. 2. Run CD-ROM diagnostics. 3. CD-ROM Drive CD-ROM drive is not recognized. 1. Run Configuration/Setup, enable primary IDE channel. 2. Check cables and jumpers. 3. Check for correct device driver. 4. Run CD-ROM diagnostics. 5. CD-ROM drive 6. System Board Power switch does not work. 1. Verify that switch number 5 of switch block is Off. 2. Power Switch Assembly 3. System Board CD-ROM drive cable is not 1. Make sure CD-ROM drive cable is plugged in. plugged in. SCSI expansion enclosure used to work, but does not work now. Verify that: 1. The cables for all external SCSI options are connected correctly. 2. The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. 3. External SCSI options are turned on. You must turn on external SCSI options before turning on the system. For more information, see the SCSI and expansion enclosure documentation. Diskette drive in-use light stays on, or the system bypasses the diskette drive, or the diskette drive does not work. 1. If there is a diskette in the drive, verify that: a. The diskette drive is enabled in the Configuration/Setup utility program. b. The diskette is good and not damaged. (Try another diskette if you have one.) c. The diskette is inserted correctly in the drive. d. The diskette contains the necessary files to start the server. e. The software program is OK. f. Cable is installed correctly (proper orientation) 2. Run Diskette Drive Diagnostics. 3. Cable 4. Diskette Drive 5. System Board Not all drives are recognized 1. Remove first drive that does not show up and rerun diagnostic. If remaining by fixed disk diagnostic. drives show up, replace the one that was removed. 2. If remaining drives do not show up, remove successive drives one at a time and rerun diagnostic. System hangs during fixed 1. Remove hard drive being tested at the time of the hang and rerun the disk diagnostic. diagnostic. If successful, replace drive that was removed. Monitor problems (general). 1. Monitor Some IBM monitors have 2. Run Video Diagnostics. If diagnostics pass, the problem may be a video driver. their own self-tests. If you 3. Display Adapter / System Board suspect a problem with the monitor, refer to the information that comes with the monitor for adjusting and testing instructions. Symptom-to-FRU index 93