Hardware Reference Manual
Table Of Contents
- Product Features
- Hardware Upgrades
- Serviceability Features
- Warnings and Cautions
- Using the Small Form Factor Computer in a Tower Orientation
- Unlocking the Smart Cover Lock
- Removing the Computer Access Panel
- Replacing the Computer Access Panel
- Removing the Front Bezel
- Removing Bezel Blanks
- Replacing the Front Bezel
- Installing Additional Memory
- Removing or Installing an Expansion Card
- Drive Positions
- Installing and Removing Drives
- System Board Drive Connections
- Removing an Optical Drive
- Installing an Optical Drive into the 5.25-inch Drive Bay
- Removing an External 3.5-inch Drive
- Installing a Drive into the 3.5-inch External Drive Bay
- Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive
- Removing and Replacing a Removable 3.5-inch SATA Hard Drive
- Specifications
- Battery Replacement
- External Security Devices
- Electrostatic Discharge
- Computer Operating Guidelines, Routine Care and Shipping Preparation
- Index

Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive
NOTE: The system does not support Parallel ATA (PATA) hard drives.
Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you
can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure
you have created a Recovery Disc Set to restore the operating system, software drivers, and any
software applications that were preinstalled on the computer. If you do not have this CD set, select
Start > HP Backup and Recovery and create it now.
The preinstalled 3.5-inch hard drive is located under the power supply. To remove and replace the hard
drive:
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as diskettes or compact discs, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: 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 to
avoid damage to the internal components of the computer.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the access panel.
7. Rotate the drive cage for external drives to its upright position.
Figure 2-35 Rotating the Drive Cage Up
ENWW Installing and Removing Drives 39