FELIX, let the BKDG help you there's everything on setting correct values on DDR2-1066 and DDR3. I don't think that anyone wiil be able to send you such a dump soon. Don't forget, that only B stepping will be able to work with DDR2 at more than 667 (800\1066). Better read the datasheet, IMHO.
It doesn't work with all of the 9xx - thats the matter of fact so this is why I ask. Can the check be bypassed? I'll wait, but if you need some help with the docs...
STEvil 5000X has PCI registers, so can be tweaked by WPCREDIT using the datasheet (it's available). But you can't change the timings by software though We've had a lot of discussion on Overclockers.ru forum on this theme.