lower the multiplyer on the cpu_nb & ht link so that they are below 2000 so that we can rule them out & keep the RAM below stock. Then try raising the FSB & see if you get a blue screen. If you do then you will need to raise the cpu voltage.
What cooling are you using & what are your current idle & load temperatures?
Edit: Big.Wayne beat me to it. My typing is to slow![]()
pauliface, I should have said make sure the HWMonitor was showing the CPU running at full load so we can see how the temps are? . . . . using the stock HSF eh!
What mobo are you using?

Yup set the memory down to [1:2] and raise the HT ref.Clock up 5MHz . . . if it then crashes its either a vCore issue or CPU temps!![]()
I don't know what TMPIN2 is measuring, but that's very high isn't it?
Also were those screenshots when idle or under load (i.e. running Prime)?
If it's running at 43C idle maybe it's overheating or something? Although then it'd probably just shut down wouldn't it?
Set your Dram freq below 1333 & both HT link & cpu_nb below 2000 (with is default) then raise your fsb by 5 & see if it is stable or not.
If you are reaching temperatures of 50 under load then you dont really want to be pushing the cpu much further. The max safe temp for a 125w 1055T is 62C so you shouldnt really go any higher that 55C max under load.
