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Max voltage (4790K)

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Go to solution Solved by AngryGoldfish,

My recommendation is no higher than 1.3V. Temperatures are pretty good on the refresh chips, but I wouldn't recommend anything more than 1.3V with a Hyper 212. This is based on experience, I don't feel comfortable overclocking beyond that on Haswell. If you can reach 4.6Ghz using 1.25V, be happy with that. That's a very respectable overclock and shows you may have a good chip with a little more headroom—with the right cooling. You might be able to squeeze out 4.7/8 with 1.3V, but the dimensioning returns would put me off until I replaced my cooler with a high-end air cooler (Phanteks, Noctua, BeQuiet!) or a good AIO like the Enermax Liqtech 240 or Corsair H110.

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So what would the max safe voltage for a 4790K be? I have mine at 1.250V (Maxing @ 75~C)... Should I go higher?

What is the max I should go and still be safe (voltage)

 

Cooler is Hyper 212 Evo... Max I wanna go for temps is 88c.

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Keep core voltage below 1.35-1.45v. Most people like to stay below ~1.3v

Keep load temps under 80-90c.

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So what would the max safe voltage for a 4790K be? I have mine at 1.250V (Maxing @ 75~C)... Should I go higher?

What is the max I should go and still be safe (voltage)

 

Cooler is Hyper 212 Evo... Max I wanna go for temps is 88c.

You can do up to 1.4V safely without fear of frying the chip or your VRMs, but for the sake of long-term reliability, 1.3V is the recommended overclocking voltage.

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WIth a 212 evo, it's maybe a better idea to stick to 1.2v or 1.25v, the cooler will probably not be able to handle the extra heat output.

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You can do up to 1.4V safely without fear of frying the chip or your VRMs, but for the sake of long-term reliability, 1.3V is the recommended overclocking voltage.

 

 

You can definitely do higher that 1.4v without killing your VRM or the chip (provided you're not using like a $60 mobo)  as long as it's not for weeks & months and only in small periods of time.  I've gone to 1.55v multiple times with my 4790k without any issues, but only just long enough for a few benchmarks. 

 

I wouldn't recommend over 1.35 for 24/7 use unless you're on extremely high end cooling or a custom loop.

IMO, the more voltage you push through the chip, the cooler you should try to keep it to prevent extra degradation. 

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  • Solution

My recommendation is no higher than 1.3V. Temperatures are pretty good on the refresh chips, but I wouldn't recommend anything more than 1.3V with a Hyper 212. This is based on experience, I don't feel comfortable overclocking beyond that on Haswell. If you can reach 4.6Ghz using 1.25V, be happy with that. That's a very respectable overclock and shows you may have a good chip with a little more headroom—with the right cooling. You might be able to squeeze out 4.7/8 with 1.3V, but the dimensioning returns would put me off until I replaced my cooler with a high-end air cooler (Phanteks, Noctua, BeQuiet!) or a good AIO like the Enermax Liqtech 240 or Corsair H110.

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Thanks for the help all.

 

Going to 1.3V and seeing how the chip fares.

Just remember: Random people on the internet ALWAYS know more than professionals, when someone's lying, AND can predict the future.

i7 9700K (5.2Ghz @1.2V); MSI Z390 Gaming Edge AC; Corsair Vengeance RGB Pro 16GB 3200 CAS 16; H100i RGB Platinum; Samsung 970 Evo 1TB; Samsung 850 Evo 500GB; WD Black 3 TB; Phanteks 350x; Corsair RM19750w.

 

Laptop: Dell XPS 15 4K 9750H GTX 1650 16GB Ram 256GB SSD

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