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What voltage are you running your CPU at?

What is your CPU's core voltage?

  • <1.1V

  • 1.1V - 1.15V

  • 1.15V - 1.2V

  • 1.2V - 1.25V

  • 1.25V - 1.3V

  • 1.3V - 1.35V

  • >1.35V

Results are only viewable after voting.
tolis626

tolis626

Senior member
As the title says. What's your core voltage? Just curious to see what most people here are running. Feel free to post details.
 
tolis626 said:
As the title says. What's your core voltage? Just curious to see what most people here are running. Feel free to post details.
Click to expand...
0.680v idle / 0.996v load. i5-3570 OC'd to 4GHz. If I drop to stock 3.4GHz, I can get it to 0.888v load under Prime. I think that's towards the "rather good" end of the silicone lottery spectrum :biggrin:
 
Set to 1.251 in the bios, reads as 1.272 in cpuz when idle, and 1.288 when under extreme load.
 
BSim500 said:
0.680v idle / 0.996v load. i5-3570 OC'd to 4GHz. If I drop to stock 3.4GHz, I can get it to 0.888v load under Prime. I think that's towards the "rather good" end of the silicone lottery spectrum :biggrin:
Click to expand...
Yup, that's quite good. I think you're wasting this chip by not overclocking it high, but that's just me! It must run really cool though...
DominionSeraph said:
It varies. Welcome to P states.
Click to expand...
Well, I obviously meant what the voltage is under load, not at idle. 😉
 
tolis626 said:
Yup, that's quite good. I think you're wasting this chip by not overclocking it high, but that's just me! It must run really cool though...
Click to expand...
Well, it's a "vanilla" i5-3570 (non K), so the multiplier maxes out at 4.0-4.2GHz anyway (3.6-3.8GHz max Turbo Boost + 400mhz limited OC on Z boards). Temps are around 40-52c for gaming. Can't get it above 55c even under Prime (on a cheap Coolermaster 212 EVO with a silent 700rpm fan). I'm highly reluctant to upgrade to a Haswell because it's so damn efficient. Whole system power draw under 4T Prime is only 77-84w, so the CPU itself is effectively only pulling 50-55w or about the same as a stock i3. 😎
 
1.3v on my 4790K for 4.7ghz. Closed loop water cooling with double radiator; Handbrake temps seldom reach 80C.
 
I have two systems for reference, neither have a very good chip though; most people have better luck than these numbers. Using Anandtech's overclocking method:

i5-4670K 1.31v @ 4.3GHz
i5-4690K 1.3v @ 4.5GHz

Both have similar closed loop liquid cooling (Coolermaster Seidon 120XL, Corsair H70) applied with Arctic Silver 5.

The i5-4670K runs pretty hot. It spikes to 60C after a few minutes of load, but takes awhile to get above 70C. I've had it fail OCCT after a few hours when it hit 85C. Fortunately I never load it that heavy for long periods of time. It's a gaming PC and most games I play don't really tax the CPU.

The i5-4690K runs noticeably cooler at load and doesn't float temperatures as much. I've never gotten it over 70C, even running Prime95 overnight.
 
Samus said:
I have two systems for reference, neither have a very good chip though; most people have better luck than these numbers. Using Anandtech's overclocking method:

i5-4670K 1.31v @ 4.3GHz
i5-4690K 1.3v @ 4.5GHz

Both have similar closed loop liquid cooling (Coolermaster Seidon 120XL, Corsair H70) applied with Arctic Silver 5.

The i5-4670K runs pretty hot. It spikes to 60C after a few minutes of load, but takes awhile to get above 70C. I've had it fail OCCT after a few hours when it hit 85C. Fortunately I never load it that heavy for long periods of time. It's a gaming PC and most games I play don't really tax the CPU.

The i5-4690K runs noticeably cooler at load and doesn't float temperatures as much. I've never gotten it over 70C, even running Prime95 overnight.
Click to expand...

Am I the only one that is afraid of leaving my CPU running stress tests overnight? Not necessarily overnight, I'm just afraid of leaving it there running at 100% without my presence in case something goes wrong. I mean, during Prime95, my CPU produces enough heat to overwhelm my H110, so it will rise to over 90C (sometimes hitting 100C and throttling) after about 30 minutes of testing. OCCT/x264/AIDA64 are lighter on the thermals, but I'm still afraid to leave it.

Generally, my way of testing involves opening any monitoring software I need, starting the testing (usually OCCT because reasons), opening my music playlist and leaving it there. I don't watch it or do other things, but I know it crashed if the music stops playing. Not the best way to do it, but I am at peace knowing that if anything happens, I'll be there.

Am I too paranoid about it?
 
1.2v Bios 1.226 reported 4770K @ 4.8GHz, Corsair H100i, Gigabyte Z87X-OC. It does 5.1GHz @ 1.35v but I won't go above 1.25v for 24/7 use.
 
DeathReborn said:
1.2v Bios 1.226 reported 4770K @ 4.8GHz, Corsair H100i, Gigabyte Z87X-OC. It does 5.1GHz @ 1.35v but I won't go above 1.25v for 24/7 use.
Click to expand...

Interesting that you can get a Haswell to 4.8Ghz on 1.2v. My G3258 / H81M-DS2V combo tops out at 1.2v, and I can't even get to 4.0Ghz stable on my dual-core.
 
ShintaiDK said:
"stock".
Click to expand...

Same. I really have no idea what it is for an i5-4690k with the "optimized" setting in an ASUS Z97-A BIOS. All I know is that it runs rings around the FX-6300 it replaces (that one I definitely knew the voltage of - overclocked the heck out of it).
 
0.8v idle 1.285v full load @ 4.6ghz 4690k

Chip is delid with MX-2, but still having heat issue during prime95.
 
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