Open the Xbox 360
Use this guide to open the xbox, http://www.xboxchopshop.com/catalog/man_360_open.php, as mentioned in the i-hacked post.
Notes about opening the Xbox 360: I used a small screwdriver and leverage to pop the tabs in the back of the xbox. You will hear a popping noise when you push on the small tabs. This can be very frustrating to get the cover off. I recommend getting the Xbox 360 Unlock toolkit from www.mod-chip.com for this part and save your sanity.
- 8 M5-.80 x 10 Machine Screws (Lowes part number: #138433)
- 16 #10 Flat Washers – Nylon (Lowes part number: #139065)
- 16 5mm Flat Washers – Metal (Lowes part number: #13831)
- Torx T10 screw driver
- Torx T8 screw driver
Notes on materials: You can purchase these parts online and save yourself a little headache, but if you are like me and can’t wait I found similar parts at a local hardware store but I did have to make a few modifications which I will talk about later. You can also use 3/16 inch machine screws and the smallest washers that fit on the screws. The M5 screws have a better thread fit than the 3/16 inch however.
I feel the washers are the most important of this modification. The parts list include metal washers and nylon washers. I have read that the nylon washers are used as insulators to prevent shorting, but I feel all you need is the nylon washers not for insulation but for cushioning. The reason the washers are so important is because they provide the proper spacing between the motherboard and the chips. Improper height of the washers will either prevent the heatsinks from contacting the chips or create the possibility of over-tightening and damaging the chips.
Tip: Place the washer(s) on the motherboard an look to see if the top of the washer lines up with the top of the chip then you will know you have the right height.