Sony PCV-RX480DS - Manual (Page 54)

VAIO Digital Studio™ System Reference Manual 40
12 Replace the AGP card and secure using the screw removed earlier.
13 Replace the power supply (see “Replacing the Power Supply” on
page 51).
14
Replace the side cover (see “Replacing the Side Cover” on page 29).
15
Reconnect the power cord and turn on the computer.
Your computer automatically recognizes the extra memory and will
configure itself accordingly when you turn on the computer. No further
action is required.
✍
Be sure to press down firmly until the handle on the AGP slot is straight up and locked
into the slot on the AGP card.