i have replaced my 2200 with a 2800, but am having trouble overclocking it. with my 2200 i could get 1.8MHz. all i can get with the 2800 is 1.77MHz i have an asus a7n8x delus w/ 333MHz fsb 512Mram. i can set my cpu external freq from 100- to 250-MHz. my ddr reference voltage 2.6- to 2.8-V. my cpu freq. mult. gives me 13, 13.5, 14, 6.5, 7.0/15.0, 7.5, 8.0/16.0, 8.5/16.5, 9.0/17.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5 i do not have much experience in overclocking, so if anyone can help, please! i have tried several combinations, but my post usually says "system failed due to cpu overclocking" or i can get my system to open windows xp-then there is a click and my computer goes off.