I wouldn't suggest you get that CPU as an OEM. Get it in a retailed box with the heatsink and documentation. This way you are garenteed to have the performance that is required from a heatsink to run that particular CPU, and if you are new to assembling computers, you will have a warrenty! OEM versions generally come without warrenties, and if you screw up the installtion of your CPU and happen to snap a pin off, your basically on your own and out a couple hundred dollars!