IBM 6646, 6645, 6644 manual 005

NOTE: The CD-ROM drive that comes with system 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 105.)

•Check the power supply voltages if you have a “system no-power” condition. See “Power Supply Connectors and Voltages” on page 107.

•Check the hard disk and CD-ROM drives jumper settings. See “3.5-In. Hard Disk Drive Jumper Settings” on page 110. Check the voltages of all disk drive power connectors. See “Power Supply Connectors and Voltages” on page 107.

•Correct the parameter settings under IDE Drives in the BIOS Setup. See “Hard Disk Drive” on page 4.

-In the BIOS Setup, check that the correct drive size is set for the flagged drive shown in the System Information. See “Viewing System Infor- mation, and Product Data” on page 15.

•Enter BIOS Setup 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 system board.

•End.

005 -

•Select Diagnostics from the PC-Doctor diagnostics program main menu. Select and execute Fixed Disks Test if you want to test hard disk drive.

•Select CD-ROM/DVD Drive from the main program menu to test the CD-ROM drive.

Check Procedures 57