Service Manual

Back to Contents Page

CMOS System
Options Not Set
CMOS Display
Type Mismatch
CMOS Memory Size
Mismatch
CMOS Time and
Date Not Set
Diskette Boot
Failure
Drive A or B is present but has
failed the BIOS POST.
Ensure that the drive is installed
correctly in the computer and defined
correctly in the system setup program.
Check the interface cable at both ends.
DMA Error
DMA 1 Error
DMA 2 Error
Error in the DMA controller on
the system board.
The keyboard or system board may
need to be replaced.
FDD Controller
Failure
HDD Controller
Failure
The BIOS cannot communicate
with the floppy drive or hard
drive controller.
Ensure that the drive is installed
correctly in the computer and defined
correctly in the system setup program.
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 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.
KB/Interface
Error
An error occurred with the
keyboard connector.
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.
No ROM Basic
The operating system cannot
be located on drive A or drive
C.
Enter the system setup program and
confirm that drive A or drive C is
properly identified.