Frequently asked questions. Acer Iconia W4, W4-820-Z3742G03aii, W4-820P, Iconia W4-820, W4-821, W4-820, W4-821P

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Frequently asked questions - 47

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 computer 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 Error messages on page 47

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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.

Error messages

CMOS battery bad

CMOS checksum error

Disk boot failure

Equipment configuration error

Hard disk 0 error

Hard disk 0 extended type error

I/O parity error

Corrective action

Contact your dealer or an authorized service center.

Contact your dealer or an authorized service center.

Insert a system (bootable) disk, then press

< Enter > to reboot.

Press < Fn > + < 2 > (during POST) to enter the

BIOS utility, then press Exit in the BIOS utility to reboot.

Contact your dealer or an authorized service center.

Contact your dealer or an authorized service center.

Contact your dealer or an authorized service center.

48 - Frequently asked questions

Error messages

Keyboard error or no keyboard connected

Keyboard interface error

Memory size mismatch

Corrective action

Contact your dealer or an authorized service center.

Contact your dealer or an authorized service center.

Press < Fn > + < 2 > (during POST) to enter the

BIOS utility, then press Exit in the BIOS utility to reboot.

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