One, two, three…

Lift!

Up comes the Xbox CPU.

This is absolutely not a demonstration of how to perform a proper BGA rework.

The motherboard was already dead and I only kept it as a donor because I wanted components from it, including RAM for a future 128 MB Xbox upgrade.

The Bosch heat gun simply provides enough broad hot air to get the solder underneath the BGA package hot enough that I can remove the processor destructively.

A proper BGA removal and replacement process uses controlled heating, board support, appropriate temperature profiling and equipment designed for the job.

Blasting a motherboard with a handheld heat gun can overheat nearby components, damage the PCB, lift pads or warp the board.

None of that mattered very much to this particular donor.

What it does give us is a nice look underneath the Xbox CPU.

BGA stands for ball grid array.

Instead of visible leads running around the edge of the package, the electrical connections are arranged as a grid of solder balls underneath it.

Once the CPU is off the board, that grid becomes rather impressive.

Complex little thing, isn’t it?

Sources