Socket 478/370 CPU Installation Guide

Installing a CPU is a surprisingly simple process. It only takes about 15 minutes. Let's get started by having a look at what we're working with.

All socket CPUs are installed the same way, Intel and AMD, Pentium 4 or Athlon. All that changes is the placement of clips and lever arms on the motherboard.


Here is a CPU sitting in the socket. Notice the lever arm is up. Lowering the arm locks the cpu into place.

Before you start:

It is a good idea to install the CPU before the motherboard is put in the case. However I usually can't be bothered taking the motherboard out if I am installing a new CPU. I simply remove the case power supply to give me room to work.

Now to begin the CPU installation:

The socket in the motherboard will only allow the CPU to be inserted one way. Make sure you orientate the CPU correctly. There are notches on the socket and CPU to help you.

Raise the lever next to the socket and simply drop the CPU in. Do not force the CPU in it should just slide in easily. Now simply lock in the CPU by lowering the lever arm.

Now to attach the heatsink:

Heatsinks come in all shapes and sizes. Here is an example of one below.

Heatsinks are really cool. If you are choosing one try to get one that is gold in color. It helps with the ladies, trust me.

Now you are ready to install the heatsink on the CPU. There will be some thermal grease that came with your heatsink. Only apply the thermal compound to the raised portion of the chip and not to the circuit board surrounding it.

Remember that you are trying to provide a very thin link between the CPU and the cooler. This will make a better heat transfer and seal later.

Now take the heatsink and sit it on top of the CPU. You will have a small hook or lever that is attached to the heatsink. This will hook onto the bottom of the socket itself.

Take your time and make sure you are securing everything correctly. CPU installation is a very logical process and it is usually obvious when you have something wrong.




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