Clearing And Resetting The Bios - HP Z240 Maintenance And Service Manual

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User manual (60 pages)

Table Of Contents

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Table of Contents

Shut down the operating system properly, then turn off the computer and any external devices, and

disconnect the power cord from the power outlet.

With the power cord disconnected, press the power button again to drain the system of any residual

power.

WARNING!

disconnect the power cord from the wall outlet, and allow the internal system components to cool

before touching.

CAUTION:

system board even when the unit is turned off. Failure to disconnect the power cord can result in

damage to the system.

Static electricity can damage the electronic components of the computer or optional equipment. Before

beginning these procedures, ensure that you are discharged of static electricity by briefly touching a

grounded metal object. See the Safety & Regulatory Information guide for more information.

Remove the access panel.

Locate the header and jumper.

NOTE:

Remove the jumper from pins 1 and 2.

Place the jumper on either pin 1 or 2, but not both, so that it does not get lost.

Replace the access panel and reconnect the external equipment.

Plug in the computer and turn on power. Allow the operating system to start. This clears the current

passwords and disables the password features.

Shut down the computer, unplug the power, and disconnect the external equipment.

10.

Remove the access panel.

11.

Place the jumper on pins 1 and 2.

12.

Replace the access panel.

13.

Reconnect the external equipment and plug in the computer.