"When it came time to overclock the Viper Fin modules, I had to wonder how much was left on such a high speed rated module. The answer was not what I was looking for but was kind of expecting. I topped out the modules at 1884MHz (942MHz), or 84MHz (42MHz) over the baseline rated speeds. Not a bad increase by any means, but I had thoughts of 1000MHz running through my skull. Loosening the timings to 9-9-9-24 or increasing voltage beyond 2.1volts did not help at this point. The modules were air cooled and felt similar to the ambient air temperatures, so heat was not a factor during the testing. One unexpected side effect was the ability to tighten the timings up at the max overclock. Sweet! It just took a little more voltage to get there."