IBM MT 2645, Hardware Maintenance Manual

Page: 8 / 83

Related service information
Related service information
This section provides information about the following:
Ÿ
“Reset switch”
Ÿ
“Service Web site”
Ÿ
“Passwords”
Ÿ
Power management features
Reset switch
The Reset switch resets the system (regardless of the
microcode status) and forces the power off. Use this
pushbutton to power off when power is not completely off
or the microcode is in a hung state. For its location, see
“Rear view” on page 66.
Service Web site
When the latest maintenance diskette and the system
program service diskette are available, a notice will be
posted on
http://pccbbs.raleigh.ibm.com/
Passwords
As many as three passwords may be needed for any
ThinkPad computers: the power-on password (POP), the
hard disk password (HDP), and the supervisor password
(PAP).
When the power-on password (POP), the hard disk
password (HDP), or the supervisor password (PAP) is
used, the following situations may occur:
If the PAP is used, the HDP is enabled automatically, but
no HDP prompt appears. The HDP is set the same as the
PAP.
Ÿ
If the POP is the same as the HDP, the POP
prompt appears, but the HDP prompt does not
appear.
Ÿ
If the POP is not the same as the HDP, both
prompts appear.
If a ThinkPad computer has an extra bay, it can support
more than two HDPs. Then the following situations will
occure:
Ÿ
If the
POP is the same as one of the HDPs (HDP-1
or HDP-2), a POP prompt appears. The passwords
are different.
Ÿ
If the
POP is not the same as either of the HDPs
(HDP-1 or HDP-2), both prompts appear.
Ÿ
If the PAP is used, the HDP-1 or the HDP-2 is
automatically enabled, but the HDP prompt does not
appear. The HDP-1 or the HDP-2 are then set to the
same password as the PAP.
3