Just installed an Accelero S1 on my 8800 GT. Temps (at 46% fan speed) went from 51/78, to 38/46 at 960 RPM. Could get better temps if I ran the fans at full, but I just linked them to the CPU temp to keep it quiet. Only thing I didn't like was the heat sinks. The adhesive is crap, thankfully I had 4 left over from my Thermaltake kit.
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