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7-6
IBM Personal Computer User Guide
1. Remove the four screws that secure the top cover at the back of the system
unit.
2. Hold both sides of the system unit cover and push it backward about 25 mm
(1 in.).
3. Lift the top cover up to remove it completely.
4. Touch the bare metal frame of your system unit to dissipate the static
electricity from your body. Do not touch any of the components inside the
frame before you touch the frame. Do not touch any of the components that
have a voltage warning label.