Thank you.
Isn't 1.52v too much for your 45nm CPU?
Most ppl give Vtt 1.45v, vcore 1.40v and 1.2 HTv 1.40 or something like this, with much less GTLrefs.
Did you try similar settings?

CPU GTL:+110
NB GTL:+110

I thought those high values are only good for 65nm Quad Core CPUs.
Now I see they work with 45nm too.
Mine is 65nm. I also need too much vcore at 420FSB even if I keep a low multi.
I don't understand why.