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Related service information
This section provides information about the following:
v “Power button as reset switch”
v “Running a low-level format”
v “Service Web site”
v “Passwords”
v “Power management features” on page 28
v “Fn key combinations” on page 30
v “Product recovery program” on page 30
Power button as reset switch
The power button acts as a reset switch when pressed for
more than 4 seconds. This resets the system (regardless
of the microcode status) and forces the power off. Use this
only when power is not completely off or the microcode is
in a hung state.
Running a low-level format
Attention: Make sure the drive address to be formatted
is correct. This procedure erases all information on the
disk.
To format the hard disk, select Utility, and then use the
Full Erase Hard Drive or Quick Erase Hard Drive in
Utility of the PC-Doctor for DOS program. Refer to “Testing
the computer” on page 34.
Service Web site
When the latest maintenance diskette and system program
service diskette are available, they are posted on:
Maintenance diskette:
http://www.pc.ibm.com/partner/infotips
System program service diskette:
http://www.pc.ibm.com/us/files.html or
http://www.pc.ibm.com/qtechinfo/TPAD-MATRIX.html
Passwords
When the power-on password (POP), hard disk password
(HDP), and supervisor password (SVP) are used, the
following situations may occur:
v If the POP is the same as the HDP, the POP prompt
appears, but the HDP prompt does not appear.
v If the POP is not the same as the HDP, both prompts
appear.
v When SVP is set, POST should invoke BIOS setup
without erasing POP. Before entering BIOS setup SVP
26 ThinkPad R30/R31 HMM