I'm bored....CPU overclocking/underclocking 1v challenge

[Kenmitch]

This sub-forum has been a little disappointing lately with little to no action going on....Off today and I'm bored.

The challenge:

Maximum stable overclock/underclock with a vcore of 1.000v max. My vcore is locked at 0.999v in my uEFI.

Must have stability! Doesn't need to be 24/7 and bullet proof. Some proof of stability is required. AIDA64, IBT, Prime95, you get the point.

Image with loaded vcore and clocks.

The last chip I tested this way that I can remember was a e5200 which only got to about 2.66ghz or so.

My highest achievable clockspeed so far looks to be as follows. I haven't tried the 1.25x or 1.66x straps yet with my chip to see if I can improve a little bit.

Guess mine is max turbo speed at 1.000v which seems OK. Nice not having to deal with the .1v spike toll avx produces on Haswell.

Seems pretty stable at this clockspeed to me. Linpack 11 stable also. Core temps produced 63,66,67,62 by Linpack

Thanks!

 

[blackened23]

That's pretty awesome, so you're getting near 3.8ghz at 1V. Pretty impressive. My 3770k idles at around 1V, I don't think i'd dare attempt turbo clocks at 1V....

Might need to grab one of those 4770k's to tinker with.

 

[Idontcare]

My 3770K topped out around similar clocks, 3.9GHz @1V in stock conditions (stock HSF, stock TIM not delidded, etc) and could do 4GHz @1V stable once delidded using an H100.

(no screenies of the stability runs themselves, but all runs documented in the table had to pass a mininum of 5 cycles in LinX with 14.2GB ram, takes roughly an hour)

 

[Vectronic]

Haven't tested 1v specifically, but my i5 3570K is about the same as IDC's i7... 3.9GHz.

3.8GHz @ 0.980v
4.0GHz @ 1.040v

That's with fixed voltage, variable/offset is a bit worse:

3.6GHz @ 0.984v
3.8GHz @ 1.048v

so, 3.7GHz.