CHAPTER 13: Adding and Replacing Components

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5Use the four screws you removed previously to secure the new rear cooling fan to the case. The arrows on the new fan must be pointed toward the back of the case for correct air flow.

6Connect the new fan’s power cable to the system board.

7Replace the side panel by following the instructions in “Replacing the side panel” on page 147.

Replacing the power supply

Tips & Tricks

You need a Phillips screwdriver to add or replace the power supply.

To replace the power supply:

1Remove the side panel by following the instructions in “Removing the side panel” on page 144.

2Disconnect all power supply cables from the system board and drives.

3Remove the four screws that secure the power supply to the case.

Screws

4Slide the power supply forward about one inch.

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eMachines H3120 manual Replacing the power supply, 156, To replace the power supply