First of all I have an (Asus P5Q SE) mb and I have 4x 1gb sticks of (FSX800D2C-K2G). I can only run 2 of the stix at a time, anytime I install all 4 my pc wont boot (turns on but no image). And even running the 2 was a bit troublesome, I had to go into the bios and set the DRAM frequency to speciffically 800mhz for it to work. Any help would be great, I really appreciate it thanks.