Resetting The Computer - HP Compaq nc6300 Maintenance And Service Manual

Product Description
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1.2 Resetting the Computer

If the computer you are servicing has an unknown password,
follow the steps below to reset the password. These steps also
clear CMOS.
✎
The following steps will not clear an unknown password if the
stringent security option has been enabled in the BIOS. If
stringent security is enabled, the system board must be replaced
to reset an unknown password. Refer to
Board,"
Before replacing the system board, perform the steps below to
make sure stringent security has been properly enabled.
Enabling stringent security provides enhanced protection for the
power-on password and administrator password and other forms
of power-on authorization. Stringent security is enabled/disabled
by accessing the Password Options menu in the Computer Setup
utility. Refer to
information.
1. Prepare the computer for disassembly (refer to
"Preparing the Computer for Disassembly,"
information).Remove the real-time clock (RTC) battery (refer
to
removing and replacing the RTC battery).
1–4
External monitor
RJ-11 (modem)
RJ-45 (network)
IEEE 1394
Accessory battery
Digital Media Slot (select computer models only)
S-Video-out (select computer models only)
Docking connector (select computer models only)
for more information on replacing the system board.
Section 2.1, "Computer Setup,"
Section 5.14, "RTC Battery,"
Section 5.24, "System
for more
for more
for more information on
Maintenance and Service Guide
Section 5.3,