2.5 Installing the CPU heatsink and fan

The Intel® Pentium® 4 478/Northwood Processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.

When you buy a boxed Intel Pentium 4 478/Northwood Processor, the package usually includes the heatsink and fan assembly.

Follow these steps to install the

CPU heatsink and fan.

1.Position the fan heatsink assembly on top of the installed CPU such that the fan cable is nearest the CPU fan connector on the motherboard (marked CPU_FAN1).

2.Align one retention bracket with the rail on the side of the heatsink. Orient the bracket such that the locking lever is on the side of the PCI slots.

3.Snap the hook of the metal retention bracket into the hole of the retention module.

4.Follow steps 2 and 3 to attach the second retention bracket.

Locking lever

Retention bracket Hole on the retention module

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Chapter 2: System Assemby