Sony PCG-XG19 - Manual (Page 98)

VAIO ® Notebook User Guide 86
5
Lift the keyboard from the LCD display side by releasing the four
tabs, then gently lean it over the display. Be careful not to detach the
cable when lifting the keyboard.
6
Remove the new memory module from its packaging.
7
Install the memory module as described in the following graphic.
Tabs
Cable
1 Slide the memory module into the slot.
2 Press the module into place until it clicks.