right i bought some geil black dragon ddr2-800 ram and i allready had some ddr2-667 in my now i have 2x1gb 667 and 2x1gb 800 all plugged in but i have to higher the ram timings from 4,4,4,12 to 5,5,5,15 for all of them to work because my 667 ram wont go to 4,4,4,12 so do i stick with 4gb of 800 @ 5,5,5,15 or 2gb of 800 @ 4,4,4,12 with overclocking possiblities ???????? thanks