Re: CPU:DRAM ratio troubles
Open your bios and goto Frequency/voltage Control --> FSB & Memory Control --> FSB - Memory Clock Ratio [Auto/Linked/Unlinked]
Or should be close to that as long as your motherboard supports that feature although I wouldn't see why not. Set it to unlinked and you will be able to change about freely in the frequency/voltage control menu I think there's a "CPU(or FSB) multiplier control" or something to that sort, if you disable it then you change the multiplier and fsb perhaps to improve your performance etc etc..
IE: my cpu is a xeon 3220 (expensive q6600) I overclocked it by changing the multiplier from 9x to 8x which allowed me to up the FSB by a huge overhead increasing my performance and giving me the 1:1 ratio with 1700fsb