"Overclocking the Reaper X was not as challenging as I had been expecting. With all of the sets in this review, I would run into hard walls that no amount of tinkering with voltages or sub-timings would let me past. The same was true here with the Reaper X HPC DDR3 1333. But the speed and latency that it happened at was much higher than I had experienced with the other test modules. Ultimately, I was able to get into Windows at 8-7-6-20 at 950MHz or DDR 1900. Not too shabby for a set of 1333MHz (667MHz) system memory. Unfortunately, that speed was unstable with the voltage used in this review and resulted in BSODs. Loosening the timings to 8-7-7-20 results in a successful boot into Windows at 470 x 7 with the memory at 940MHz. This represents an increase from the stock speeds of 274MHz. That's huge when it comes to overclocking potential."