Sony PCV-RX640 - Manual (Page 47)

Removing, Installing, and Replacing Components 35
Removing a Memory Module
You may need to remove a memory module if you change the memory
configuration or replace a bad module.
1 Remove the side cover (see “Removing the Side Cover” on page 24).
2 Remove the power supply (see “Removing the Power Supply” on
page 47).
3
Locate the memory module you wish to remove.
!
Before opening the system unit, save and close all open files, exit all open
applications, turn off the power to all attached peripheral devices, shut
down the computer, and unplug the power cord.
✍
The memory modules are located beneath the power supply. You need to remove
the power supply to reach the memory modules.
!
Touch any exposed metal part of the chassis to discharge static
electricity in your body before handling the memory module.