HP dc7800 series User Manual

Removing the Computer Access Panel
To access internal components, you must remove the access panel:
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as a compact disc, 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 and lay the computer down.
6. Loosen the thumbscrew on the rear of the computer (1), slide the access panel toward the front of
the computer, then lift it off (2).
Figure 2-1 Removing the Computer Access Panel
Replace the computer access panel by aligning the panel with the computer chassis, then sliding it onto
the chassis toward the rear. Tighten the thumbscrew to secure the access panel.
10 Chapter 2 Hardware Upgrades ENWW

HP dc7800 series Specifications

General

Chipset	Intel Q35 Express
Memory	Up to 8 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Processor Options	Intel Core 2 Duo
Graphics	Intel Graphics Media Accelerator 3100
Optical Drive	DVD-ROM
Network	Integrated Intel Gigabit Ethernet
Ports	USB 2.0
Expansion Slots	PCI, PCIe x1, PCIe x16
Operating System	Windows Vista, Windows XP
Power Supply	240W
Form Factor	Small Form Factor (SFF), Convertible Minitower (CMT)