in my knowledge, as long as the psu has a minimum of total 30A on its +12v(s), your system will be fine running c2d with high end graphic card (exclude sli/crossfire).
i'm using thermaltake tr 550w with a total 29A on its dual rail +12v. it is able to boot my e6600, 775dual-vsta, and x1900xt. so no worries!
the latest BIOS P2.1 rev. A, makes my c2d runs even better!
private message me your email address so i can send you the revision A from ASRock Technical Support Department.
There's an issue with the P2.10 BIOS version, then after I emailed them regarding the incorrect fsb setting, they sent me the revision one. Afterward it runs even better!
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