Nvidia made a run of defective GPUs somewhere around 2007-2008. Tom's Hardware claims[0] that all G84 and G86 GPUs other than warranty replacements produced in

Nvidia made a run of defective GPUs somewhere around 2007-2008. Tom's Hardware claims[0] that all G84 and G86 GPUs other than warranty replacements produced in late 20008 are defective. It's not a BGA solder issue like we've seen on numerous laptop GPUs over the years, but a problem with the internal interconnects. Heating it, as if to reflow a BGA does temporarily solve the problem, but in my experience, the period of time it keeps working after heating gets shorter each time. [0] http://www.tomshardware.com/news/nvidia-g84-g86-chips-overheating,6121.html http://www.tomshardware.com/news/nvidia-g84-g86-chips-overhe...