This is a special preform to reball Microsoft X-Box" GPU.
This will fix the Ring Of Death and the dreaded "two lights flashing
The solder balls are 63/37. Microsoft recommends that its IC and PCB be reflowed or reworked to a maximum of 3 three times. If after reflowing 3 times, the problem is not resloved then reballing is the only solution.
This preform make reballing easy using these simple steps.
1. Remove the GPU
2. Remove the old solder using solder wick
3. Apply a thin coat of Tacky Flux 8600 to the bottom of the GPU