Step 5- Installing the Heatsink

Now you have your motherboard and CPU installed you need a cooling mothered this is where we install the Heatsink, you can either use your own heatsink or use the 'Stock' Heatsink that comes with your CPU, If you use your own shop brought CPU, you may also need to perchance some thermal paste to apply to the heatsink, where as most stock heat sink comes with thermal paste applied thermal paste on stock heatsinks look's like (the grey lines) 

Next you need to 'fix' the heatsink on top of your cpu on your motherboard, there are many ways that this can be done, all heatsinks are different but this is the way for 'stock' heatsinks, first you align the heatsink up with the holes around the CPU socket, and push down this is called a 'temp six' then you push down the black clips and then turn them anticlockwise to fix them, you do this in an opposite arrangement (e.g. bottom right then top left then bottom bottom left and top right) and when that's completed you need to plug in your heatsink fan, find the pinout called 'sys fan' on the motherboard (next to the CPU) then plug in your fan, it will look a bit like