Found this snippet about the ram.
"Indeed, if you're a keen overclocker this is one of the brands to strongly consider. Although we ran it at DDR2-800 using our standard latency of 4-4-4-12 (a fairly conservative setup), Corsair tests the memory at 3-4-3-9 so you're guaranteed a boost, and at 1066MHz at 5- 5-5-15, it provides a small rise over 800Mhz".