Sony PCG-XG19 - Manual (Page 97)

Adding Memory 85
To install a memory module
1
Shut down your computer and disconnect all peripheral devices,
such as your printer.
2
Unplug the computer and remove the battery packs.
3
Wait until the computer cools down. Then unscrew the screw at the
bottom of your computer.
4
Lift the two stoppers at the bottom of the keyboard and slide the
keyboard toward the LCD display, then lift it away slightly.
✍
Unscrew the screw with a screwdriver of a proper size.
screw
stopper