HP Deskpro /M Desktop PC 486/50M Compaq Deskpro Family of Personal Computers, - Page 28
Non-Functioning Device, No O/S Loading., Hard drive or CD-ROM, drive, RUN DPS HARD DRIVE, TEST.
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18. Non-Functioning Device Non-functioning device. Turn off power, disconnect power cord, and open the computer. Caution: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. Unplug the power and data cable from the non-functioning device. Inspect cables and plugs for bent or broken pins or other damage. For a NIC or SCSI controller, remove the expansion card and inspect leads. Any physical Y damage? N Clear CMOS Reattach drive. Close computer, plug in power, and reboot. Drive boots N properly? Y Done Fix or replace broken item. Hard drive or CD-ROM drive • RUN DPS HARD DRIVE TEST. (hard drive only) • Check IDE drive jumper settings for Cable Select and Primary/Secondary status. • Check SCSI drive ID and termination. • Correct any conflicts. NIC Possible bad NIC, replace card. If integrated NIC, replace system board. Diskette drive Possible bad diskette drive. Replace drive. Go to Page 2-12, No O/S Loading. N Drive boots properly? Y Done Quick Troubleshooting Guide 2-19