I am starting to get mad at myself for going with this ram.When it works its pretty fast.I was getting 13500 3dmarks on 3dmark06.At stock speeds.But I digress.The first set failed after 12 days.The second set after 10 days.I will not be able to rma it to newegg again cause I had to cut the box upc out to send in for my rebate.Im thinking my GA P35-DS4 mobo doesnt officially support the crucial ddr2 1066 I WAS using.I have a set of pny 667 running in it now.It runs fine,just slower. The first set that failed caused random reboots and finally it wouldnt boot into xp.And it corrupted my registry so I had to start over with a fresh install.I caught it the second time rebooting and when the blue screen flashed as it was about to open xp and rebooted again and the screen asking if I wanted to boot into safe mode came up I shut it off, installed the pny and now its ok.I suppose Im going to have to rma it to crucial but its probably going to keep happening.I hope not but im thinking this memory is overclocked 800mhz memory and will keep failing.The same thing happened twice and the chances of that are slim.I just hope I can get a refund if it happens again and go with ocz or corsair.Any opinions and suggestions are welcome.And I did run memtest when I got the second set for 8 hours and had no errors.