Lenovo ThinkPad A22p Service and Troubleshooting Guide for A22m and A22p - Page 25

Message, Solution, Screen expansion, 02F7: Fail-safe timer NMI

Page 25 highlights

Solving computer problems Message Solution 02F5: DMA test failed Have the computer serviced. 02F6: Software NMI failed Have the computer serviced. 02F7: Fail-safe timer NMI Have the computer serviced. failed The power-on password prompt A power-on password or a supervisor password is set. Type the password and press Enter to use the computer. If the power-on password is not accepted, a supervisor password might have been set. Type the supervisor password and press Enter. If you still see the same error message, have the computer serviced. The hard disk password A hard disk password is set. Type the password and press Enter to use the prompt computer. The DOS full-screen looks smaller. Hibernation error Operating system not found. If you still see the same error message, have the computer serviced. If you use a DOS application that supports only 640x480 resolution (VGA mode), the screen image might look slightly distorted or might appear smaller than the display size. This is to maintain compatibility with other DOS applications. To expand the screen image to the same size as the actual screen, start the ThinkPad Configuration Program and click LCD; then select the Screen expansion function. (The image might still look slightly distorted.) Note: If your computer has screen expansion function, you can use the Fn+F8 keys to expand the screen image. The system configuration changed between the time your computer entered hibernation mode and the time it left this mode, and your computer cannot resume normal operation. v Restore the system configuration to what it was before your computer entered hibernation mode. v If the memory size has been changed, re-create the hibernation file. Verify the following: v The hard disk drive is correctly installed. v A startable diskette is in the diskette drive Fan error If you still see the same error message, check the boot sequence, using IBM BIOS Setup Utility. The cooling fan is failing. Have the computer serviced. Chapter 2. Solving computer problems 15

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Message
Solution
02F5: DMA test failed
Have the computer serviced.
02F6: Software NMI
failed
Have the computer serviced.
02F7: Fail-safe timer NMI
failed
Have the computer serviced.
The power-on password
prompt
A power-on password or a supervisor password is set. Type the password
and press Enter to use the computer. If the power-on password is not
accepted, a supervisor password might have been set. Type the supervisor
password and press Enter. If you still see the same error message, have the
computer serviced.
The hard disk password
prompt
A hard disk password is set. Type the password and press Enter to use the
computer.
If you still see the same error message, have the computer serviced.
The DOS full-screen
looks smaller.
If you use a DOS application that supports only 640x480 resolution (VGA
mode), the screen image might look slightly distorted or might appear
smaller than the display size. This is to maintain compatibility with other
DOS applications. To expand the screen image to the same size as the actual
screen, start the ThinkPad Configuration Program and click
LCD
; then select
the
Screen expansion
function. (The image might still look slightly
distorted.)
Note:
If your computer has screen expansion function, you can use the
Fn+F8 keys to expand the screen image.
Hibernation error
The system configuration changed between the time your computer entered
hibernation mode and the time it left this mode, and your computer cannot
resume normal operation.
v
Restore the system configuration to what it was before your computer
entered hibernation mode.
v
If the memory size has been changed, re-create the hibernation file.
Operating system not
found.
Verify the following:
v
The hard disk drive is correctly installed.
v
A startable diskette is in the diskette drive
If you still see the same error message, check the boot sequence, using IBM
BIOS Setup Utility.
Fan error
The cooling fan is failing. Have the computer serviced.
Solving computer problems
Chapter 2. Solving computer problems
15