IBM Thinkpad A21e A22e I 1800 Manual

6. When the Enter New Password field opens, leave it
blank and pressEntertwice.
7. PressEnterin the Changes have been saved window.
8. PressF10; then selectYe sin the Setup confirmation
window.
How to remove the hard-disk password
AttentionIfUser onlymode is selected and the user HDP is
forgotten and cannot be made available to the
servicer, IBM does not provide any services to reset
the user HDPs nor recover data from the hard-disk
drive. The hard-disk drive can be replaced for a
scheduled fee.
To...

Power management
To reduce power consumption, the computer has three
power management modes: screen blank, standby, and
hibernation.
NotesvScreen blank mode is calledstandby modein
Windows 95 and Windows NT.
vStandby mode is calledsuspend modein
Windows 95 and Windows NT.
Screen blank modeScreen blank mode has three variants, as follows:
1. If you pressFn+F3, or the time set on the″LCD off
timer″in IBM BIOS Setup Utility expires,
vThe LCD backlight turns off.
vThe hard-disk drive motor stops.
vThe...

i 1800 series
MT2655-P7J, PAJ
vThe CPU stops.
To enter standby mode, pressFn+F4.
Note:You can change the action ofFn+F4, if you are
using the ACPI operating system.
In certain circumstances, the computer goes into standby
mode automatically:
vIf a“suspend time”has been set on the timer, and the
user does not do any operation with the keyboard, the
TrackPoint, the hard disk, the parallel connector, or the
diskette drive within that time.
vIf the battery indicator blinks orange, indicating that the
battery...

Note:The computer does not accept any input
immediately after it enters standby mode. Wait a
few seconds before taking any action to reenter
operation mode.
Hibernation mode
Note for Windows NTIf you are using Windows NT in the default format,
NTFS, you cannot create a hibernation file. If you
want to use hibernation mode, you will need to
reinstall Windows NT with FAT format.
In hibernation mode, the following occurs:
vThe system status, RAM, VRAM, and setup data are
stored on the hard disk.
vThe system...

Checkout guide
Use the following procedures as a guide in identifying and
correcting problems with the ThinkPad computer.
Note:The diagnostic tests are intended to test only IBM
products. The use of non-IBM products, prototype
cards, or modified options can lead to false
indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as
possible.
2. Verify the symptoms. Try to re-create the failure by
running the diagnostic test or by repeating the
operation....

If an error code appears, go to“Symptom-to-FRU
index”on page 46.
On the first screen, select the model and pressEnter.
Follow the instructions on the screen.
2. The main panel of PC-Doctor appears.
3. SelectDiagnosticswith the arrow keys, and press
Enter.
A pull-down menu appears. (Its exact form depends on
the model.)
The options on the test menu are as follows:
Diagnostics Interactive Tests
vRun Normal Test
vRun Quick Test
vCPU/Coprocessor
vSystemboard
vVideo Adapter
vSerial Ports
vParallel Ports...

Diagnostics
Quit Interactive TestsHardware Info
UtilityF1=Help
Run Quick TestRun Normal Test
Systemboard CPU/Coprocessor
Video Adapter
Serial Ports
Diskette Drives Fixed DisksParallel Ports
Other Devices
ZIP Drive
Communication
Memory Test - Full
Memory Test - Quick
Use the cursor keys and ESC to move in menus. Press ENTER to select.
PC-DOCTOR 2.0 Copyright 2000 PC-Doctor, Inc. All Rights Reserved.
4. Run the applicable function test.
5. Follow the instructions on the screen. If there is a
problem,...

Power system checkout
To verify a symptom, do the following:
1. Power off the computer.
2. Remove the battery pack.
3. Connect the ac adapter.
4. Check that power is supplied when you power on the
computer.
5. Power off the computer.
6. Disconnect the ac adapter and install the charged
battery pack.
7. Check that the battery pack supplies power when you
power on the computer.
If you suspect a power problem, see the appropriate one
of the following power supply checkouts:
v“Checking the ac adapter”...

Checking operational chargingTo check whether the battery charges properly during
operation, use a discharged battery pack or a battery pack
that has less than 50% of the total power remaining when
installed in the computer.
Perform operational charging. If the battery status indicator
or icon does not turn on, remove the battery pack and let it
return to room temperature. Reinstall the battery pack. If
the charge indicator or icon still does not turn on, replace
the battery pack.
If the charge indicator...

Note:Recharging will take at least 3 hours, even if
the indicator does not turn on.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
for Nickel metal hydride battery;
vIf the voltage is less than +8.0 V dc, the battery
pack has been discharged.
Note:Recharging will take at least 3 hours, even if
the indicator does not turn on.
If the voltage is still less than +8.0 V dc after
recharging, replace the battery.
4.for Lithium ion battery;
vIf the voltage is more than +11.0...