I don't know if you're even checking this or not, but if you're overclocking, I wouldn't buy Kingston. Kingston's a great company and they make fine RAM, but they just don't overclock well; never had AFAIK. Get Samsung (if it's on a genuine Samsung PCB), Corsair XMS, Mushkin, OCZ (buy at your own risk, but I'm trusting them now), or Geil. They're much better at overclocking.