Ok guys I am done with this stuff. I have bought 3 dual packs now. One level 2 and two level 1's. All of them 3500. I run them at stock speed only to have my computer be unstable. Run mem test to find tons of errors. I got this stuff to overclock but I can't get it to run stable at stock speed! I have my Crucial 2700 in there and the stuff runs for days overclocked with no memtest errors. This will be the 3rd RMA to newegg. What else can I try? Who else can I try? I think I am pretty much finished with Mushkin. I would think about crucial but they don't may anything higher than 3200 CAS 3. That blows. I can't use BH-5 chips cuz my motherboard doesn't like it. I need low latency memory 3500 that is quality!