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2. Push the plastic tab to release the power supply.
3. Move the power supply outward from the computer.
4. To replace the power supply, reverse these steps.
Identifying parts on the system board
The system board, also called the planar or motherboard, is the main circuit board in
your computer. It provides basic computer functions and supports a variety of
devices that are IBM-installed or that you can install later.
Chapter 5. Installing internal options — microtower model 43