I recently did an overclock on my Intel I7 4790k @4.8ghz @1.369 volts and had it crash. I then decided to let my ASUS Z97-AR moth board handle the voltages by setting the Vcore to Automatic and now runs sorta stable yet its pumping 1.38 volts. My question is, is there any way i can lower these volts manually with out of my cpu crashing or do i just have a really shitty cpu?
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Intel I7 4790K @4.8GHz running really high Vcore volts
- Thread starter Orpheuss
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ShakedG
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- Dec 2, 2014
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1. You don't have a really shitty CPU, 4.8 ghz is pretty hard to get on the 4790k
2. I wouldn't trust these automatic overclocks. I would test it a lot to make sure it is actually stable.
3. 1.38 volts isn't that much worse than 1.369, however monitor the temps while stress testing, and if they get over 80-85 then dial it back.
4. Consider going to 4.7/4.6 ghz, and you may be able to lower your voltage a lot, and get a much cooler and quieter system for very little performance decrease.
PS whats software are you using to test the overclock?
2. I wouldn't trust these automatic overclocks. I would test it a lot to make sure it is actually stable.
3. 1.38 volts isn't that much worse than 1.369, however monitor the temps while stress testing, and if they get over 80-85 then dial it back.
4. Consider going to 4.7/4.6 ghz, and you may be able to lower your voltage a lot, and get a much cooler and quieter system for very little performance decrease.
PS whats software are you using to test the overclock?
I agree with with ShakedG above, particularly point 4. Once you start approaching the limits of a chip you usually find that each 100mhz requires exponentially higher voltage to keep it stable. If your goal is to eek out as much performance from the CPU as possible, then that kind of an overclock makes sense. But the heat, power and life expectancy of the CPU are going to suffer pretty heavily.
You might find that you need a pretty hefty 1.38V for 4.8Ghz, but only 1.25V, or (maybe) even less, for 4.6Ghz. That 4-5% performance increase is costing you probably 30-40% more power, much higher temps and (in all likelihood) a significantly shorter life for the CPU. You sure it's worth it?
You might find that you need a pretty hefty 1.38V for 4.8Ghz, but only 1.25V, or (maybe) even less, for 4.6Ghz. That 4-5% performance increase is costing you probably 30-40% more power, much higher temps and (in all likelihood) a significantly shorter life for the CPU. You sure it's worth it?
dudmont
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- Feb 23, 2015
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I don't think you have a bad one. I'm running 4.5 at 1.16 on all 4 cores, if it's .05volts for clock bump, then I'd be over 1.3 to get 4.8(I won't run over 1.3volts as that's been a point in the history of Haswell where things go to hades). Follow ShakedGs instructions. Get the volts on manual, keep the temps down, and consider a lower over-clock.
Well I am using AIDA64 and when doing a cpu stress test my temps never went above 67C today when i the cpu was @4.7ghz @1.349 volts and it ran for 5 hours straight with not a single issue. So over all I will take all of your advice and do some more testing with manual overclocks to see what voltage is stable.
One last thing how long should i keep a stress running for to make sure the cpu is stable?
dudmont
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Not in any significant way. It has an 8 phase vrm, which should be more than enough for stable power delivery. I never tell a man his stuff is low end, I always ask this question. Does it do what you want it to do? Fact is, Asus doesn't really do low end.
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