Opening the Computer
Before you open your Mac Pro, shut it down by choosing Apple ( ) > Shut Down.
Always shut down your Mac Pro before opening it to avoid damaging its
internal components or the components you want to install. Do not open the
computer or attempt to install items inside it while it is on.
Wait 5 to 10 minutes to allow the computer's internal components to cool.
Let your computer cool down before you touch the internal components,
which may be very hot.
Touch the metal on the outside of your Mac Pro to discharge any static electricity from
Always discharge static before you touch any parts or install any
components inside the computer. To avoid generating static, do not walk around the
room until you finish installing the cards, memory, or internal storage device and close
Working Inside Your Computer