Heat sink assembly (AMD) — Model 505B/515B

1.Prepare the computer for disassembly (Preparation for Disassembly on page 4).

2.Remove the access panel (Access Panel on page 5).

3.Lay the computer on its side with the rear facing toward you.

4.Disconnect the heat sink fan control cable from the system board.

5.Lift the lever (1) that secures the heat sink latch to the heat sink bracket attached to the system board.

6.After loosening the lever, press downward on the lever to release the square clip (2) from the tab on the heat sink bracket.

7.Use the lever to maneuver the square clip on the opposite side on the heat sink (3) free from the tab on the heat sink bracket.

8.Lift the heat sink from the processor and set it on its side to keep from contaminating the work area with thermal grease.

Figure 2-47Removing the heat sink

CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heat sink to the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board.

When reinstalling an existing heat sink, make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor. New heatsinks come from the factory with fresh thermal grease already applied.

Heat sink assembly (AMD) — Model 505B/515B

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