Gateway 7400 System Manual page 79

7
While supporting the power supply by the handle with one hand, remove
the screws securing the power supply to the back panel.
Handle
8
Carefully lift the power supply out of the chassis using the handle
attached to the power supply. Move the power supply forward to clear
the support bracket, then tilt the left side of the power supply down to
clear the side cover mounting rail as you pull it out.
9
Make sure that the new power supply matches the one you removed. The
mounting holes should line up correctly, and the specifications and
power output connectors should be the same.
Power supplies
71