i5 4670k 4.2ghz at stock voltage - safe?

[bongpig]

Hello all. Thanks to some advice in the GPU forum regards my system being bottlenecked by my old CPU ( i5 4460 ) I bought a 4670k.

My current ( cheap ) motherboard is an MSI H81M-E35-V2. It has a pretty basic overclocking section in the BIOS which allows the tweaking of the CPU multiplier but not the core voltage. I got it running stable at 4.3ghz but knocked it down to 4.2ghz to be sure of stability. First, I ran it through prime95 torture test for 12 hours and other than some down-clocking when the CPU got near 70c during the day when it was very warm, it ran well with no errors. Ive just finished a 4 hours gaming session, testing as many games as possible at max settings to get my cpu usage up and didn't have any problems. CPU never went above 60c. Mostly 45c - 50c.

Im new to OCing and constantly see articles stating the need to up voltage to get my CPU above 4ghz - which is why im concerned.

So, my question: is it safe to run my cpu at 4.2ghz without any voltage increase? Or can I assume, if it made it through prime95 torture, that its fine and I should just relax and enjoy the considerable boost in performance?

 

[Andrei23]

Auto voltage =/ stock voltage.

 

[bongpig]

Auto voltage? I had no idea that was a thing.

Ok, thats cleared that up. I feel a bit silly now.

Cheers

 

[Blackjack Davy]

You really need to take a look at what voltages are being pumped through it Auto tends to set it way too high put it into manual voltage mode and start dropping them until it becomes unstable then raise it slightly.

 

[silversurfer]

I swear I remember some overclocking and reducing voltage vs stock, might have been barton under water or conroe not sure.
I forget which utils you might need to use to check on actual volts while you use the pc. I only have speedfan