3.Disconnect the system fan’s cable from the system board. Then, remove the screws that secure the heatsink assembly to the system board and lift it off the board.

Installing the Heatsink

1.Insert the heatsink and tighten the screws to secure it to the system board.

2.Connect the system fan’s cable to the system board.

3.Install:

a.system board

b.palmrest assembly

c.keyboard

d.memory module

e.hard drive

f.WLAN card

g.access panel

h.optical-disk drive

i.battery

4.Follow the procedures in After Working Inside Your Computer.

Removing the Power Connector

1.Follow the procedures in Before Working Inside Your Computer.

2.Remove:

a.battery

b.optical– disk drive

c.access panel

d.hard drive

e.memory module

f.keyboard

g.palmrest assembly

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Dell 3445 owner manual Installing the Heatsink, Removing the Power Connector