Power Supply is completely enclosed - safe to touch. The wires coming out of it are all low voltage DC and enclosed in plastic connectors - safe to handle.
Big square board with mounted parts is Motherboard (Mobo for short).
Everything plugs into Mobo; expansion boards and memory go into slots,
drive cables go into cable connectors.
drive cables go into cable connectors.
CAUTION: you can ruin electronics by touching exposed, uninsulated parts. When handling exposed electronic parts, ALWAYS touch the metal case with your fingers and/or tools before touching electronic components - this discharges static electricity that builds up on your body, clothing and tools and makes you and the components equal in polarity.
The drives are all held in place by screws usually two on each side of the drive. These screws must be removed to remove the drive.
Typical Mid Tower Case
WARNING: OPEN YOUR COMPUTER AT YOUR OWN RISK. All electronics have differences so all possibilities cannot be communicated in a writing such as this; also you may void warranties by opening a case or attempting repairs yourself: read your warranties first. The author of these pages assumes no liability for your use of, or the correctness of the information contained herein.
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