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3-1-2
Master DMA register failure
3-1-3
Master interrupt mask register failure
3-1-4
Slave interrupt mask register failure
3-2-2
Interrupt vector loading failure
3-2-4
Keyboard Controller Test failure
3-3-1
NVRAM power loss
3-3-2
NVRAM configuration
3-3-4
Video Memory Test failure
3-4-1
Screen initialization failure
3-4-2
Screen retrace failure
3-4-3
Search for video ROM failure
4-2-1
No time tick
4-2-2
Shutdown failure
4-2-3
Gate A20 failure
4-2-4
Unexpected interrupt in protected mode
4-3-3
Timer-chip counter 2 failure
4-3-4
Time-of-day clock stopped
4-4-1
Serial or parallel port test failure
4-4-4
Cache test failure
Message
Possible Cause
Corrective Action
8042 Gate-A20
error
The keyboard controller
failed its test.
If you receive this message after you make
changes in the system setup program, enter
system setup (see Entering System Setup)
program and restore the original value(s).
Address Line
Short!
An error in the address
decoding circuitry in the
memory has occurred.
Reseat the memory modules (see Removing
Memory.
C: Drive Error
C: Drive
Failure
The hard drive is not
working or is not
configured correctly.
Ensure that the drive is installed correctly in
the computer and defined correctly in the
system setup program (see Entering System
Setup).
Cache Memory
Bad, Do Not
Enable Cache
The cache memory is not
operating.
See "Contacting Dell" in your Owner's Manual
for instructions on obtaining technical
assistance.
CH-2 Timer
Error
An error is occurring on the
timer on the system board.
See "Contacting Dell" in your Owner's Manual
for instructions on obtaining technical
assistance.
CMOS Battery
State Low
CMOS Checksum
Failure
CMOS System
Options Not Set
CMOS Display
Type Mismatch
CMOS Memory
Size Mismatch
CMOS Time and
Date Not Set
The system configuration
information in the system
setup program is incorrect
or the battery charge may
be low.
Enter the system setup program (see
Entering System Setup), verify the system
configuration, and then restart the
computer.
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 (see Entering System
Setup). 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 (see
Removing the 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 floppy drive or the hard
drive (Installing a Hard Drive) is installed
correctly in the computer and defined
correctly in the system setup program (see
Entering System Setup). Check the interface
cable at both ends.
INTR1 Error
An interrupt channel on the
system board failed to
The keyboard or system board (see
Removing the System Board) may need to