If you get a bsod, increase the Vcore voltage. I do it in increments of 0.250. You might find that you can get further into windows each time you increase it. Once in, you can increase it or decrease it as required to maintain stability.

If you are on 1301, then you can run the rest of the volt settings on auto (with the exception of the ram volts), but reference voltages below I set manually:
1800 FSB
+20
+20
DDR Controller +20
Ram 1 REF
Ram 2 REF

2000 FSB
+30
+30
DDR Controller +20
Ram 1 REF
Ram 2 REF

4500... not stable, 3DMarks for me and runs Orthos, but will not run SuperPi wthout an error. I'm going to lap the cpu tomorrow to perhaps help stability.