Guys, I have a problem with my "new" I45 tpower.

Before this MBO i had Asus P5k vanilla, and my q6600 hit 450FSB at first try, and was rock stable at it. Note that I only ask for FSB freq.

Now, on I45, my mbo is unstable even at 430FSB, and I cannot make it boot on 450.

Am I doing something wrong? What bios options do you need me to post, just say the word and I'll write