The Xbox 360 GPU

The Xbox 360 GPU

While Microsoft's focus on the CPU was efficiency, with the Xbox 360's GPU, it pulled out all the stops. Designed by ATI, Microsoft controls the IP of the GPU; meaning, Microsoft can manufacture and do what it wishes with Xenos (although we're assuming that they can't stick it on graphics cards and start selling it to the public).
The GPU also acts as a North Bridge in the system, but we'll get to that role a little later. Like the Xbox 360 CPU, we've talked about the GPU in great detail in the past, but we'll briefly go over the highlights here.

Disassembling the Xbox 360 HDD unit

Disassembling the Xbox 360 HDD unit

The Xbox 360's HDD unit only currently comes if you purchase the $399 Xbox 360 system. For those who purchase the core system, no hard drive is included. However, if you are interested in finding out just exactly what Microsoft has offered in terms of storage, the following are instructions on how to disassemble the Xbox 360's HDD module.
Start off by first removing the HDD unit from the Xbox 360 main console and lay it flat with the connector side facing upwards. You will see 3 screws. The 4th screw is located underneath the silver "Microsoft" sticker -- removing this sticker instantly voids your HDD unit's warranty.

 Once you have removed all 4 screws, lift up the plastic cover while being careful that it is latched onto the button-release end of the unit. You'll want to be careful as not to pop the spring loaded