NOTE: The CD-ROM drive that comes with syste unit should be configured as IDE Secondary Channel Master device.

Check all power supply voltages, switch, and jumper settings before you replace the system board. (See “System Board Jumpers and Connectors” on page 109)

Check the power supply voltages if you have a “system no-power” condition. See “Power Supply Connectors and Voltages” on page 111.

Check the hard disk and CD-ROM drives jumper settings. See “3.5-In. Hard Disk Drive Jumper Settings” on page 117. Check the voltages of all disk drive power connectors. See “Power Supply Connectors and Voltages” on page 111.

Correct the parameter settings under Disk Drives in the Configuration/Setup Utility. See “Hard Disk Drive” on page 4.

-In the Configuration/Setup Utility, check that the correct drive size is set for the flagged drive shown in the System Information. See “Viewing System Information, and Product Data” on page 17.

Enter Configuration/Setup Utility and load default settings.

If the problem remains, check the continuity on the drive and the cable and replace it if necessary. If that does not fix the problem, replace the syste board.

End.

005 -

Select Diagnostics from the PC-Doctor diagnostics program main menu. Select and execute Floppy DiskTest if you want to test diskette drive. Select and execute Hard Disk Test if you want to test hard disk drive.

Select Interactive Tests from the PC-Doctor diagnostics program main menu, then select and execute CD-ROM/DVD Test if you want to test CD- ROM drive.

56 IBM Desktop System HMM

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IBM 2274 manual 005