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How to install ram in an imac
Prepare your imac for the ram installation.
Turn off your imac and remove the power cord and all other cables from the computer. This will prevent you from being electrically shocked as you install the ram.
Allow the imac to sit for at least 10 minutes after you turn off the computer. This will allow the hot, or warm internal parts of your imac to cool down completely before you install the ram.