Suddenly, about 10 minutes ago, my 9880 shut off for no reason. I turned it back on, then it shut off in a few minutes. Long story short, I've determined the GPU fan no longer moves - just "quivers" every few seconds. I verified it was plugged into the MB - as far as I can tell, it looks like the fan died.
Who should I contact regarding this? Sager or PC Torque?