Lenovo ThinkPad A22p Service and Troubleshooting Guide for A22m and A22p - Page 26

Errors without messages - ram

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Solving computer problems Message Solution EMM386 Not Installed- Edit C:\CONFIG.SYS and change a line from Unable to Set Page Frame Base Address. device=C:\WINDOWS\EMM386.EXE RAM to device=C:\WINDOWS\EMM386.EXE NOEMS CardBus Configuration Error-Device Disabled and save this file. Press F1 to go to the IBM BIOS Setup Utility. Press F9 and then Enter to load the default setting. Press F10 and then Enter to restart the system. Errors without messages Problem: When I turn on the machine, nothing appears on the screen and the machine does not beep while starting up. Note: If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again. If you are using an external monitor, refer to External monitor problems. Solution: If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter. If the power-on password prompt does not appear, the brightness control lever might be set to minimum brightness. Adjust the brightness level by pressing Fn+Home. If the screen still remains blank, make sure that: v The battery is installed correctly. v The ac adapter is connected to the computer and the power cord is plugged into a working electrical outlet. v The computer power is on. (Turn on the power switch again for confirmation.) If these items are properly set, and the screen remains blank, have the computer serviced. Problem: When I turn on the machine, nothing appears on the screen, but I hear two or more beeps or a continuous beep while starting up. Solution: If you are using Ethernet: v Make sure that the Ethernet cable is connected firmly. 16 ThinkPad® A22 Service and Troubleshooting Guide

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Message
Solution
EMM386 Not Installed
—
Unable to Set Page
Frame Base Address.
Edit C:\CONFIG.SYS and change a line from
device=C:\WINDOWS\EMM386.EXE RAM
to
device=C:\WINDOWS\EMM386.EXE NOEMS
and save this file.
CardBus Configuration
Error
—
Device Disabled
Press F1 to go to the IBM BIOS Setup Utility. Press F9 and then Enter to
load the default setting.
Press F10 and then Enter to restart the system.
Errors without messages
Problem:
When I turn on the machine, nothing appears on the screen and the
machine does not beep while starting up.
Note:
If you are not sure whether you heard any beeps, turn off the
computer; then turn it on again, and listen again. If you are using an
external monitor, refer to External monitor problems.
Solution:
If a power-on password is set, press any key to display the
power-on password prompt, and then type the correct password and press
Enter
.
If the power-on password prompt does not appear, the brightness control
lever might be set to minimum brightness. Adjust the brightness level by
pressing Fn+Home.
If the screen still remains blank, make sure that:
v
The battery is installed correctly.
v
The ac adapter is connected to the computer and the power cord is plugged
into a working electrical outlet.
v
The computer power is on. (Turn on the power switch again for
confirmation.)
If these items are properly set, and the screen remains blank, have the
computer serviced.
Problem:
When I turn on the machine, nothing appears on the screen, but I
hear two or more beeps or a continuous beep while starting up.
Solution:
If you are using Ethernet:
v
Make sure that the Ethernet cable is connected firmly.
Solving computer problems
16
ThinkPad
®
A22 Service and Troubleshooting Guide