Solving System Problems 7-5
Post Error Messages
Message
What To Do
Address line is short
Error in the address decoding circuitry on the system
board. Contact your NEC CSD service representative
for service work.
C: Drive Error
Hard disk drive C: does not respond. Check that C: hard
disk type in Setup is correct.
C:Drive Failure
Hard disk drive C: does not respond. You may need to
replace the hard disk drive.
Cache Memory Bad, Do
Not Enable Cache
Cache memory is defective. It must be replaced.
Contact your NEC CSD service representative for
service work.
CH-2 Timer Error
Most ISA computers include two timers. There is an
error in timer 2. Contact your NEC CSD service
representative for service work.
CMOS Battery State
Low
CMOS RAM is powered by a battery. The battery power
is low. Contact your NEC CSD service representative to
replace the CMOS battery.
CMOS Checksum
Failure
After CMOS RAM values are saved, a checksum value
is generated for error checking. The previous value is
different from the current value. Run Setup to reset the
value.
CMOS System Options
Not Set
The values stored in CMOS RAM are either corrupt or
nonexistent. Run Setup to reset the value.
CMOS Display Type
Mismatch
The amount of memory on the system board is different
than the amount in CMOS RAM. Run Setup to reset the
value.
CMOS Time and Date
Not Set
Run Setup to set the time and date.
Diskette Boot Failure
The boot diskette in floppy drive A: is corrupt. It cannot
be used to boot the computer. Use another boot disk
and follow the on-screen instructions.
DMA Error
Error in the DMA controller. Contact your NEC CSD
service representative to replace the CMOS battery.
DMA#1 Error
Error in the first DMA channel. Contact your NEC CSD
service representative for service.
DMA#2 Error
Error in the second DMA channel. Contact your
NEC CSD service representative for service.