How to Find the Hard Drive in a Computer
Computer companies and private computer builders often use computer cases that vary widely in design. As a result, the physical location of some hardware components may differ greatly from one computer to the next. Locating the hard drives is integral to a computer user's ability to upgrade and replace hard-drive components later in the life of the computing system.
Disconnect the computer from any electrical sources and remove the computer case's side access panel.
Locate the motherboard hard-drive data ports. These are located in the bottom right corner of the computer's motherboard and are labeled on the motherboard for easy identification.
Follow the data cables visually from the motherboard to the hard drives. The cable ends at the hard-drive installation location. All hard drives are installed in a centralized location within the drive cage that provides hard-drive bays for installation of one or more hard drives.