Specifications
Table Of Contents
- Product Features
- Activating and Customizing the Software
- Computer Setup (F10) Utility
- Illustrated parts catalog
- Serial ATA (SATA) Drive Guidelines and Features
- Routine Care and Disassembly Preparation
- Removal and Replacement Procedures – Microtower (MT) Chassis
- Removal and Replacement Procedures – Small Form Factor (SFF) Chassis
- Troubleshooting Without Diagnostics
- Safety and Comfort
- Before You Call for Technical Support
- Helpful Hints
- Solving General Problems
- Solving Power Problems
- Solving Hard Drive Problems
- Solving Media Card Reader Problems
- Solving Display Problems
- Solving Audio Problems
- Solving Printer Problems
- Solving Keyboard and Mouse Problems
- Solving Hardware Installation Problems
- Solving Network Problems
- Solving Memory Problems
- Solving Processor Problems
- Solving CD-ROM and DVD Problems
- Solving USB Flash Drive Problems
- Solving Front Panel Component Problems
- Solving Internet Access Problems
- Solving Software Problems
- Contacting Customer Support
- HP PC Hardware Diagnostics
- Backup and Recovery
- Power Cord Set Requirements
- POST Error Messages
- Password Security and Resetting CMOS
- Specifications
- Index

Resetting the Password Jumper
To disable the power-on or setup password features, or to clear the power-on or setup passwords,
complete the following steps:
1. Shut down the operating system properly, then turn off the computer and any external devices,
and disconnect the power cord from the power outlet.
2. With the power cord disconnected, press the power button again to drain the system of any
residual power.
WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet, and allow the internal system
components to cool before touching.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to
the 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.
3. Remove the access panel.
4. Locate the header and jumper labeled CLR_PASS.
NOTE: The password jumper is blue so that it can be easily identified. For assistance locating
the password jumper and other system board components, see the Illustrated Parts & Service
Map (IPSM). The IPSM can be downloaded from
http://www.hp.com/support.
5. Remove the jumper from pins 2 and 3.
6. Place the jumper on pins 1 or 2.
7. Put the jumper back on pins 2 or 3.
8. Replace the access panel.
9. Reconnect the external equipment.
10. Plug in the computer and turn on power. Allow the operating system to start. This clears the
current passwords and disables the password features.
11. To establish new passwords, use Computer Setup.
Clearing and Resetting the CMOS
The computer’s configuration memory (CMOS) stores information about the computer’s configuration.
The CMOS button resets CMOS but does not clear the power-on and setup passwords.
Clearing CMOS will clear the Active Management Technology (AMT) settings in the Management
Engine BIOS Extension (MEBx), including the password. The password will default to “admin” and will
Resetting the Password Jumper 209










