I have the Asus P5K-E WiFi with 1006 BIOS and 2GB of Patriot Extreme Performance PC2-8500. What I find strange is that every other chip I had was like "mrcape" described where: the "chip fails at an old clock it fails in at the exact same time, to the minute, every time. It even scales up consistently at each clock". That is why i find this one really strange, there is no patter to it, and yes I am even taking ambient temps into account. I just find it hard to believe that I could have degraded it with runing it at 1.43V for less than 45min and the temps where in the mid 50s. The only other thing that changed since that session was me installing Vista Inspirat 2.1 with Windows Blinds 5.5. But I do not see how those OS changes can effect my OC stability.