HP dx7400 - Microtower PC Hardware Reference Guide

7. Depending on the type of battery holder on the system board, complete the following instructions
to replace the battery.
Type 1
a. Lift the battery out of its holder.
Figure B-1 Removing a Coin Cell Battery (Type 1)
b. Slide the replacement battery into position, positive side up. The battery holder automatically
secures the battery in the proper position.
Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one edge
of the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with
the positive side up. Push the other edge down until the clamp snaps over the other edge of
the battery (2).
Figure B-2 Removing and Replacing a Coin Cell Battery (Type 2)
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
ENWW 21

HP dx7400 - Microtower PC Specifications

General

Memory	Up to 8 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Power Supply	300W
Processor	Intel Core 2 Duo, Pentium Dual-Core, or Celeron
Storage	SATA Hard Drive
Optical Drive	DVD-ROM, DVD+/-RW
Graphics	Integrated Intel Graphics Media Accelerator 3100
Networking	Integrated Gigabit Ethernet
Expansion Slots	1 PCI Express x16
Ports	1 serial, 1 parallel, audio in/out
Operating System	Windows XP Professional