Power Management - IBM ThinkPad T20 Hardware Maintenance Manual

6. When the Enter New Password field opens, leave it
blank and press Enter twice.
7. In the Changes have been saved window, press Enter.
8. Press F10; then, in the Setup confirmation window,
select Yes .
How to remove the hard-disk password
Attention
If User only mode is selected and the user HDP
has been forgotten and cannot be made available to
the servicer, IBM does not provide any services to
reset the user HDPs or to recover data from the
hard-disk drive. The hard-disk drive can be replaced
for a scheduled fee.
To remove a user HDP that has been forgotten, when the
SVP and the master HDP are known, do the following:
1. Power on the computer by pressing and holding F1.
2. Enter the SVP. The IBM BIOS Setup Utility menu
appears.
3. Select Password, using the cursor keys to move down
the menu.
4. Select Hard-disk x password, where x is the letter of
the hard-disk drive. A pop-up window opens.
5. Select either User HDP or Master HDP.
6. Enter the master HDP; then leave the New Password
field blank and press Enter twice.
7. Press F10.
8. Select Yes in the Setup Configuration window.
Both user HDP and master HDP will have been
removed.

Power management

To reduce power consumption, the computer has three
power management modes: screen blank, standby, and
hibernation.
Notes
v Screen blank mode is called standby mode in
Windows 95 and Windows NT.
v Standby mode is called suspend mode in
Windows 95 and Windows NT.
Screen blank mode
Screen blank mode has three variants, as follows:
1. If you press Fn + F3, or the time set on the "LCD off
timer" in IBM BIOS Setup Utility expires,
v The LCD backlight turns off.
Related service information
General descriptions
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