Sony PCV-RX640 System Reference Manual page 45

Removing, Installing, and Replacing Components
8
If necessary, remove any add-in cards (see
AGP Card"
need to disconnect some cables.
!
Touch any exposed metal part of the chassis to discharge static
electricity in your body before handling an add-in card or other
sensitive electronic component.
9
Use a small flathead screwdriver or your finger to push in (not down)
against the small tab at one end of the battery holder to pop out the
battery.
Push in (not down) on
tab to pop out battery
10
Gently lift out the battery and dispose of it according to the
instructions that came with the new battery.
11
Insert the new battery into the battery holder, with the plus (+) side
up, and press down until the battery is secure.
✍
The Sony CR2032 battery is recommended. Using a type of battery other than a
CR2032 may present a risk of fire or explosion.
12
Replace any add-in cards that were removed.
13
Reconnect any cables that were disconnected.
14
Replace the side cover (see
15
Reconnect the power cord and turn on the computer.
on page 30) to gain access to the battery. You may also
"Replacing the Side Cover"
"Installing an Add-On
on page 25).
33