Got CPU running at 3.2GHZ with a CPU voltage of 1.375 and 1425FSB. If i increase the CPU FREQ to 400 to make it 3.2 with 1600FSB with 1.375V CPU Voltage it crashes. The only Diff is im changing the FSB to 1600MHZ from 1425MHZ what should i do?
You're probably going to need to bump both your CPU voltage as well as you MCH voltage. Search on Gigabyte P965 Overclock guide by Bill Parrish. This is a VERY good guide on how to OC Gigabyte boards. It applies well to P35 boards (I used it to get to my OC).
He's looking for a step by step overclocking guide for exactly specs as his.
Try to Google it, you might find one that have the same specs as your, just a hint:
you have to play around with Vcore & NB voltage.