RELATED SERVICE INFORMATION
If the
POP is the same as one of the HDPs (HDP-1
or HDP-2), a POP prompt appears. But one of the
HDP prompts does not appear.
If the
POP is not the same as either of the HDPs
(HDP-1 or HDP-2), both prompts appear.
If the
PAP is used, the HDP-1 or the HDP-2 is
automatically enabled, and neither HDP prompt
appears. Both HDP-1 and HDP-2 are set the same
as the PAP.
Supervisor and hard disk passwords:
The
supervisor password (PAP) and the hard disk password
(HDP) are security features that are used to protect the
system and the hard disk data from unauthorized access.
No overriding capability is provided. If only a hard disk
password is set, you must obtain permission from the
password owner to unlock the password before running
diagnostic tests and performing service. If both a
supervisor password and a hard disk password are set,
you can enter IBM BIOS Setup Utility by pressing the
Enter key or by entering the power-on password at the
supervisor password prompt. In this case, you can not
select some items in the IBM BIOS Setup Utility.
Attention
The supervisor password and hard disk password
cannot be replaced if they are forgotten. If the
customer forgets the supervisor password, the system
board must be replaced. If the customer forgets the
hard disk password, the hard disk drive must be
replaced.
Removing the power-on passwords:
If only the power-on password is set, do the following to
remove it:
1. Power off the computer.
2. Remove the DIMM cover on the bottom side of the
computer.
3. Short-circuit the two password pads. (see “Password
pads” on page 92).
4. Under the short-circuit condition, power on the
computer and wait until the POST ends.
After the POST ends, the password prompt does not
appear. The power-on password is removed.
5. Reinstall the DIMM cover.
If both the power-on password and the supervisor
password are set, do the following to remove the
password:
1. Power on the computer and press F1 to start the IBM
BIOS Setup Utility.
26
ThinkPad 570 Hardware Maintenance Manual
Summary of Contents for ThinkPad 2644
Page 7: ......
Page 11: ...INTRODUCTION 2 ThinkPad 570 Hardware Maintenance Manual ...
Page 64: ...FRU REMOVALS AND REPLACEMENTS 1010 Battery pack ThinkPad 570 55 ...
Page 66: ...FRU REMOVALS AND REPLACEMENTS Cable routing ThinkPad 570 57 ...
Page 71: ...FRU REMOVALS AND REPLACEMENTS 62 ThinkPad 570 Hardware Maintenance Manual ...
Page 75: ...FRU REMOVALS AND REPLACEMENTS 66 ThinkPad 570 Hardware Maintenance Manual ...
Page 88: ...FRU REMOVALS AND REPLACEMENTS ThinkPad 570 79 ...
Page 101: ...LOCATIONS Password pads 92 ThinkPad 570 Hardware Maintenance Manual ...
Page 102: ...PARTS LIST THINKPAD 570 Parts List ThinkPad 570 ThinkPad 570 93 ...
Page 111: ...PARTS LIST THINKPAD 570 102 ThinkPad 570 Hardware Maintenance Manual ...
Page 113: ...IBM Part Number 37L5191 Printed in U S A S37L 5191 ðð ...
