CPU Install Guide

The installation of a CPU is a simple process, if done correctly. This guide is based on the installation of a Pentium 4 processor in a socket 478 motherboard. This guide also assumes that you have all the necessary tools and equipment and your CPU is compatible with your motherboard and other system components.

You will need the following before you begin the CPU installation:

• CPU

• CPU HSF (Heat Sink and Fan)

• Thermal Paste

• Plastic Bag (Used to spread thermal paste)

• CPU and Motherboard Documentation

Install CPU

First, lift the ZIF (zero insertion force) lever. Place the CPU in the socket so that the notches and pins are all lined up correctly. Do not force the CPU, it should fit right in if positioned correctly. After the CPU is in place, lower the ZIF lever to secure the CPU in the socket.

Mount CPU Heat Sink and Fan

After the CPU is firmly secured, place a small amount of thermal paste on the top of the processor. Do not put too much. Just a small drop about the size of a grain of rice. Spread the thermal paste out very thinly in a circular motion. The cleanest way to do this is by simply using a small plastic bag and your finger. Do the same to the underside of the heat sink. Be careful not to get the thermal paste on anything other than the heat sink and heatspreader/core of the CPU. The heat sink and fan are surrounded by a clip assembly. Line up the HSF with the retention mechanism on the motherboard and press down on all four corners to attach it. Once in place, secure the clip levers on the top of the fan. HSF use various types of clips to secure themselves, so read the documentation. Some heat sinks can be difficult to mount so proceed with caution and never apply more pressure than needed to the CPU and motherboard.

Once you have confirmed everything is correctly in place and the PC boots without problems, let the CPU run under heavy load for a few hours to let everything "burn in". Thats it, your done!