i5 750/MSI GD65 OC help.

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I am about to start overclocking with this board in hopes of hitting 4ghz+ stable. The OC Genie stuck me at 210x17 3.58ghz which was nice and easy. My question is about stuff like C1E etc. Do we disabled that with the i5'? I have always disabled all speed stepping with my older stuff. Whats the voltage limit of the i5 on good air cooling? I have heard 1.45V. Also is Prime 95 and the intel burn in test still good for testing stability and what is the peak safe temps I should be seeing? Think I have heard around 80C peak?

 

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ONLY SETTINGS I TOUCHED: BIOS 1.5
20x200 = 4ghz
Vdroop - Low (when set to high the V-droop is a lot and meant I had to feed much more voltage for stability)
CPU V = 1.376 (Actual voltage 1.392 - 1.416, It raises under load which I am not used to) . This passed 5 Linpack Cycles, 3 Vantage runs and 8 hours of Prime 95. I ran out of time and never pushed the voltage low enough to fail yet.
CPUVTT = 1.25
DRAM V = 1.651
C1E = disabled
EIST = disabled
Overspeed protection = disabled
Green Power = disabeled
RAM - 8-8-8-24 1600mhz


Turbo Mode? I will have to dig back through the bios as I did not see it.. should this be disabled?
My max Temp after an 8 hour run of Prime 95 was 65C on hottest core. It would be lower but my fan doesn't throttle up until it gets to 65C to keep the system quiet.