either o/c ur cpu to 400fsb or downclock ur ram to 333fsb so 1:1
crazed pardon my numbers for some reason i was thinking you were running ddr ram, not ddr2.
amd's dont work like that, guys. and it is not crucial that it run on a 1:1 ratio in any event.
there aint no way you will make an amd cpu run at 400 fsb. if you can, i wanna see it so i can do it too. i highly doubt that it will do it no matter how low you drop the cpu multi. and then you start getting really screwy ram timings and stuff.
i have an excellent overclocking board and cpu, and i am REALLY pushing it at 340ish.
amds tend to not be so stable at speeds over 300. it takes work to get them that high. plus if you were running 400 fsb on a 4800, that would make your cpu clock 5.0ghz (12.5 x 400)...and that is not gonna happen.
crazed you need 240 fsb to get 3.0ghz (240 x 12.5). if you set your ram speed at ddr2 533, i think that will put you at like 428mhz on your ram:
12.5 x 240 = 3000 / 7 (i think) = 428 (ddr2 856). that gskill should handle that no problem, probably at stock timings and voltage.
i have a link to ddr2/amd ram timings, i will see if i can find it and post it for ya.