IBM 6646 Personal Computer User Manual


 
Check Procedures 57
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.