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Troubleshooting 85
FDD Controller
Failure
HDD Controller
Failure
The BIOS cannot
communicate with the
floppy drive or hard
drive controller.
Ensure that the floppy
drive or the hard drive is
installed correctly in the
computer (see "Drives" on
page 128) and defined
correctly in the system
setup program (see
"System Setup" on
page 178). Check the
interface cable at both
ends.
INTR1 Error
INTR2 Error
An interrupt channel
on the system board
failed to POST.
The keyboard or system
board may need to be
replaced.
Invalid Boot
Diskette
The operating system
cannot be located on
drive A or drive C.
Enter the system setup
program (see "System
Setup" on page 178) and
confirm that drive A or
drive C is properly
identified.
Keyboard Error
The BIOS has detected
a stuck key.
Ensure that nothing is
resting on the keyboard; if
a key appears to be stuck,
carefully pry it up. If the
problem persists, you may
need to replace the
keyboard.
Message Possible Cause Corrective Action
book.book Page 85 Tuesday, November 27, 2007 10:29 AM