The following tables list error codes and messages that may appear during power-on diagnostic checks. If you receive an error message, look it up in the tables below; they direct you to the proper troubleshooting section in this appendix or offer a solution. If you do not see an error message, read the section that covers your problem.

Power-on diagnostics error messages

Error message

 

Beeps

 

Action

 

 

 

 

 

 

 

8042 Gate-A20 error

 

 

 

Write down message, contact dealer

 

 

 

 

 

 

 

 

 

Write down message, contact dealer

 

 

 

 

 

 

 

 

 

See ‘Hard Disk Problems’

 

 

 

 

 

C: Drive failure

 

 

 

See ‘Hard Disk Problems’

 

 

 

 

 

CH-2 timer error

 

 

 

Write down message, contact dealer

 

 

 

 

 

CMOS battery state

 

 

 

See ‘Battery Problems”

low

 

 

 

 

 

 

 

 

 

CMOS checksum

 

 

 

Run SETUP as described In Chapter 2

failure

 

 

 

of the Setup Guide. If error recurs,

 

 

 

 

write down message and contact

 

 

 

 

dealer

 

 

 

 

 

CMOS display type

 

 

 

See “Monitor Problems’

mismatch

 

 

 

 

 

 

 

 

 

CMOS inoperational

 

 

 

Write down message, contact dealer

 

 

 

 

 

 

 

 

CMOS memory size

 

 

 

Run SETUP as described in Chapter 2

mismatch

 

 

 

of the Setup Guide. If error recurs,

 

 

 

 

write down message and contact

 

 

 

 

dealer

 

 

 

 

 

CMOS system options

 

 

 

Run SETUP as described in Chapter 2

not set

 

 

 

of the Setup Guide; then see ‘Battery

 

 

 

 

Problems’

 

 

 

 

 

CMOS time and date

 

 

 

Run SETUP and enter time and date;

not set

 

 

 

see Setup Guide, Chapter 2

 

 

 

 

 

D: Drive error

 

 

 

See ‘Hard Disk Problems’

 

 

 

 

 

Troubleshooting C-3