Quote Originally Posted by xanvincent View Post
Just picked up a pair of the 1gigs today and can't seem to get over ~425MHz at 1.85-2.20V in bios with 4-4-4-12 timings. Tried bumping the timings to 5-5-5-18 to rule them out and only achieved ~455Mhz. How much voltage can these things take before it is unsafe? I'll try 2.3 and 2.4V later today.

Mmmm it seems like your mobo is limiting your overclock because you should not have any problem to do 5-5-5-15 at 600MHz using below 2,2V...