Screwing the motherboard to the computer case.

This process can be a little frustrating. A good thing to do would be to remove the piece where the motherboard screws too, which is a large panel within your computer case.

Next you should have little plastic looking screws. Use these to secure all four corners of your motherboard. Don't worry if you can't secure each corner, more often than not you will only be able to get 2 to 3 corners.

Finally, you will see holes in the middle of the motherboard. You should be able to insert two screws to secure the middle of your board. Screw these in, but make absolutely certain that you have those little red rubber looking washers. This will protect your board from damage that the metal screws can cause. Like the corner screws, it's really no big deal if you can only screw in one center support screw.