49
Opening your computer
Caution: Before you proceed, make sure that you have turned
off your computer and all peripherals connected to it. Read the
“Preinstallation instructions” on page 47.
You need to open your computer before you can install additional
components. See the following section for instructions.

To remove the computer cover

1 Turn off your computer and unplug all cables.
2 Place your computer on a flat, steady surface.
3 Turn the thumbscrews counterclockwise with your fingers to
release the cover.
4 Hold the cover with both hands. Slide it back about an inch and
then gently pull it upward to detach it.