Acer ao725 User Manual

37

English

Troubleshooting

This chapter shows you how to deal with common system problems. Read it before 
calling a technician if a problem occurs. Solutions to more serious problems require 
opening up the computer. Do not attempt to open the computer yourself; contact 
your dealer or authorized service center for assistance.

Troubleshooting tips

This notebook PC incorporates an advanced design that delivers onscreen error 
message reports to help you solve problems.

If the system reports an error message or an error symptom occurs, see "Error 
messages" below. If the problem cannot be resolved, contact your dealer. See 
"Requesting service" on page 23.

Error messages

If you receive an error message, note the message and take the corrective action. 
The following table lists the error messages in alphabetical order together with the 
recommended course of action.

If you still encounter problems after going through the corrective measures, please 
contact your dealer or an authorized service center for assistance.

CMOS battery bad

Contact your dealer or an authorized service center.

CMOS checksum error

Contact your dealer or an authorized service center.

Disk boot failure

Insert a system (bootable) disk, then press <Enter> to 
reboot.

Equipment 
configuration error

Press <F2> (during POST) to enter the BIOS utility, then 
press Exit in the BIOS utility to reboot.

Hard disk 0 error

Contact your dealer or an authorized service center.

Hard disk 0 extended 
type error

Contact your dealer or an authorized service center.

I/O parity error

Contact your dealer or an authorized service center.

Keyboard error or no 
keyboard connected

Contact your dealer or an authorized service center.

Keyboard interface error Contact your dealer or an authorized service center.

Memory size mismatch

Press <F2> (during POST) to enter the BIOS utility, then 
press Exit in the BIOS utility to reboot.