I just put in 8 gigs of RAM in my PC and it seems to be causing all kinds of crashes. Mostly it locks up after about 5-10 min with all 4 sticks in and it takes upwards of an hour for it to crash with only 4 gigs in. Due to the crashing I can't complete a test in memtest to get more specific details. I have tried upping the power to the RAM and all the timings are set to what it says on the box. The RAM is also withing the limits of my motherboard, I checked before buying and I am running Windows 7 x64. Anyone have any ideas?