Maintenance and Service Guide
Table Of Contents
- Product features
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures
- Computer Setup (F10) Utility
- Using HP PC Hardware Diagnostics
- 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 audio problems
- Solving printer problems
- Solving keyboard and mouse problems
- Solving hardware installation problems
- Solving network problems
- Solving memory problems
- Solving USB flash drive problems
- Solving Internet access problems
- Solving software problems
- Backing up, restoring, and recovering
- POST error messages and diagnostic front panel LEDs and audible codes
- Password security and resetting CMOS
- Power cord set requirements
- Statement of memory volatility
- Specifications
- Index
4 Removal and replacement procedures
The following sections provide information about disassembling various components of the computer.
Preparing to disassemble the computer
To avoid injury and equipment damage, always complete the following steps in order, when opening the
computer.
1. Remove all removable media, such as USB ash drives, from the computer.
2. Turn o the computer properly through the operating system, and turn o any external devices.
3. Disconnect the power cord from the AC outlet and disconnect any external devices.
IMPORTANT: Regardless of the power-on state, voltage is always present on the system board as long
as the system is plugged into an active AC outlet. You must disconnect the power cord and wait
approximately 30 seconds for the power to drain to avoid damage to the internal components of the
computer.
4. Disconnect all other attached cables from the back of the computer.
CAUTION: Beware of sharp edges inside the chassis.
16 Chapter 4 Removal and replacement procedures