24 Medalist 8421, 6421, 4311 and 2112, Rev. A
discs reach operating speed. If the drive motor does not start
up, recheck all drive cables.
•Verify that for each drive, a drive-type value is li sted in the sys-
tem setup program.
•Try rebooting your computer by pressing the CTRL, ALT and
DELETE keys simultaneously. I f the driv e i s recogni ze d after y o u
reboot the system, the computer BIOS test may be completing
before the drive is ready.
One solution is to slow the proc essor spe ed dur ing st art up. If
your computer has a turbo switch, set it to slow speed before
turning the computer on. If there is no turbo switch, you may
be able to use keyboard commands; see your computer man-
ual for details. After the computer is up and running, return the
processor to the fast speed.
Another solution is to warm-boot your computer after every
power-on.
•Check for I/O address conflicts. To isolate the conflict, verify
that the drive and host adapter are compatible with your com-
puter. Turn off the computer and remove all the peripheral
adapter cards except for the video card and host adapter. If
the computer recognizes the drive when you reboot the com-
puter, turn off the computer. Reinstall the other peripheral
cards, one at a time, until the conflict reoccurs. After you have
isolated the source of the address conflict, you can res ol ve the
conflict by changing the I/O address of the peripheral that
appears to cause the conflict.
•If Disk Manager has installed the DDO on your hard drive and
you have booted directly from a diskette, the information in the
boot record for the drive may not hav e b een lo aded. M ake sure