Sony PCV-E204 - Manual (Page 44)

VAIO MicroTower System Reference 36
9 Replace the front panel (see “Replacing the Front Panel” on page 25).
10
Replace the left side panel (see “Replacing the Left Side Panel” on
page 27).
Your computer automatically recognizes the extra memory and will
configure itself accordingly when you turn it on. No further action is
required.