MSI 990XA-GD55 Low FSB and CPU voltage cap

I just purchased a brand spanking new 8120 and I'm loving it right now. I've been steadily OC'ing it and have gotten it to 4.5 Only with the multiplier. I wanted to do it with my FSB but it will only go up to 225, after that it stops posting. I keep everything close to stock as i pump it up but if i go up to 226 and keep everything low it doesnt post. I thought that was fine and didnt worry about it till i saw people hitting 250+ with their MB. is it my board thats bad or am i doing something. I also cant up my voltage on my cpu past 1.4v which puts me at the 4.5 with a core temp of 50 running prime95.

>>Posting Guide<<
 Do you know you can't just up the Reference clockrate ("FSB") without modifying the HT-Link to not massively overclock the linked components.
Tom's Hardware made a basic How To for K8 which will even for FX still give an idea: http://www.tomshardware.com/reviews/phenom-overclock-athlon,2161.htm

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