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post #20811 of 22605
Setting my vring voltage to auto while at 4.8ghz core clock put my vring volts over 1.3v. Definitely should not be left auto
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post #20812 of 22605
It's even more automatic on Z170, some boards offer you auto/normal/manual so auto is what ever the board maker feels will work which often is way too high voltage just to be safe and not have issues, normal = intel stock, manual is what you set. So if on Z97 someone thinks Auto = stock it doesn't and it's even more so not that way on Z170.
Best just write the stock volts and settings down and set them manually if you don't want them set by UEFI to something else when you start to OC.
post #20813 of 22605
Auto uncore voltage scales it up with multiplier.

Does this come from the cpu, like the vid adaptive voltages? Or just from the mobo?

Does core multiplier have an effect? I know if you leave uncore multiplier on auto it'll match core multiplier and so then it would, but if i lock uncore at 40x with uncore voltage on auto, is there a difference between 44x and 48x core?

Anyway just lock uncore at 1.15V. Raise uncore multiplier until it crashes then back off 2-3 multipliers. Once done with the core oc then you can dial it in more.

Mine is 42x uncore at 1.17V.

Past about 1.15V uncore seems to need more input voltage.
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post #20814 of 22605
I must be the only one who uses vcore voltage on manual and thats it lol. I let everything else auto, and temps are fine so must be working. Fully stable too.
    
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post #20815 of 22605
Quote:
Originally Posted by gupsterg View Post

My first i5 4690K on UEFI defaults showed reading of ~1.20V in monitored values in UEFI. I was able to take that down to 1.15V and increase cache ratio to 41..
It appears mine is exactly the same as your first.

Quote:
Originally Posted by killkernel View Post

Yes, 1.34V cache voltage is high.

For cache @4.0Ghz a voltage of 1.16V is enough for stability...Try it and let me know if i'm wrong! biggrin.gifbiggrin.gifbiggrin.gifthumb.gif

I owe you an apology. You were absolutely right.
post #20816 of 22605
Quote:
Originally Posted by jdorje View Post

Past about 1.15V uncore seems to need more input voltage.

I used the default VRING 1.20V on my 1st i5 4690K for a little while when getting it, VCCIN was still default ~1.85V. I never saw VCCIN or LLC Level rise when they were "Auto" and was raising cache ratio, only VRING was increasing when left "Auto".

When upping CPU ratio and VRING, VCCIN plus LLC Level were left "Auto" I saw no rise in those.

I did not test leaving CPU voltage "Auto" and upping CPU ratio.
Quote:
Originally Posted by MIXEDGREENS View Post

It appears mine is exactly the same as your first.

My 1st would OC to 4.4GHz comfortably with no stability issues in tests I did, 1.180V VID set in UEFI. It was also capable of 4.5GHz as well, required 1.230V VID. 4.6GHz I ran very few tests it needed 1.260V VID.

I literally fell off my chair when testing the 2nd i5 and seeing VID it needed for 4.4GHz, 1.010V VID biggrin.gif . As the chip kept OC'ing with very good VID levels I had a crazy wide grin ear to ear biggrin.gif .

Originally the 2nd i5 had only been bought to sell on via ebay to make a few £. You can imagine how gutted I would have been if later I found out I let a corker of a chip go through my hands.
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post #20817 of 22605
I tried 1.15v on cache voltage (Vring/uncore) as someone had asked me to do earlier and I experienced BSOD a couple times. At least I think it was BSOD. Windows 10 has a weird BSOD screen. Back at 1.2v and no issues (stock 4.0ghz uncore with 4.8ghz/1.232v core).

I did notice there is not actual turbo settings for the clock. I am a little confused I thought that with intel you set a main core clock and a turbo core clock if turbo is on. On this motherboard if i set turbo to off the core remains at stock 4.0ghz. If turbo is on then whatever I set all cores (or single cores) to is what it sets to. Sometimes however it will boost up to 4.9+ghz and I also see the bus clock jump to as high as 102.3 which of course increases clock of ram which always is reflected but it does not always reflect the bus clock increase in the CPU clocks as shown here at 101.3 bus is what it went to which it reflects the jump in the ram and pci-e clock but not in the uncore or the core:



I am not sure why it bumps it up or how to control turbo? Little confused.
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post #20818 of 22605
Quote:
Originally Posted by dmfree88 View Post

Warning: Spoiler! (Click to show)
I tried 1.15v on cache voltage (Vring/uncore) as someone had asked me to do earlier and I experienced BSOD a couple times. At least I think it was BSOD. Windows 10 has a weird BSOD screen. Back at 1.2v and no issues (stock 4.0ghz uncore with 4.8ghz/1.232v core).

I did notice there is not actual turbo settings for the clock. I am a little confused I thought that with intel you set a main core clock and a turbo core clock if turbo is on. On this motherboard if i set turbo to off the core remains at stock 4.0ghz. If turbo is on then whatever I set all cores (or single cores) to is what it sets to. Sometimes however it will boost up to 4.9+ghz and I also see the bus clock jump to as high as 102.3 which of course increases clock of ram which always is reflected but it does not always reflect the bus clock increase in the CPU clocks as shown here at 101.3 bus is what it went to which it reflects the jump in the ram and pci-e clock but not in the uncore or the core:


I am not sure why it bumps it up or how to control turbo? Little confused.

Hi,

I experience the same:



IMO, the best place to ask is the [OFFICIAL] HWiNFO/32/64 Thread
    
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post #20819 of 22605
Quote:
Originally Posted by dmfree88 View Post

I tried 1.15v on cache voltage (Vring/uncore) as someone had asked me to do earlier and I experienced BSOD a couple times. At least I think it was BSOD. Windows 10 has a weird BSOD screen. Back at 1.2v and no issues (stock 4.0ghz uncore with 4.8ghz/1.232v core).

I did notice there is not actual turbo settings for the clock. I am a little confused I thought that with intel you set a main core clock and a turbo core clock if turbo is on. On this motherboard if i set turbo to off the core remains at stock 4.0ghz. If turbo is on then whatever I set all cores (or single cores) to is what it sets to. Sometimes however it will boost up to 4.9+ghz and I also see the bus clock jump to as high as 102.3 which of course increases clock of ram which always is reflected but it does not always reflect the bus clock increase in the CPU clocks as shown here at 101.3 bus is what it went to which it reflects the jump in the ram and pci-e clock but not in the uncore or the core:



I am not sure why it bumps it up or how to control turbo? Little confused.
The clocks random increase is a software glitch. These monitoring tools aren't 100% accurate. It's a known glitch. You can try disabling spread spectrum, that EMI lowering feature so it passes tests, which seems to lower the chances of that glitch but that's about it.

If you want to OC you have to have Turbo enabled as you can only set turbo multiplier at least that's how I remember it from the CPU specs. When you turn Turbo off CPU will run with turbo disabled which for 4790k means 4.0GHz. It may be on ASUS or other that they are cheating it in UEFI to allow you to set non turbo multiplier by having turbo enabled and doing some of their own detection, I don't know. Just keep turbo enabled and everything should work as it should. If you want to lock your clock at max turbo, you can. So there definitely are tricks that various mobo/uefi makers use, they override or ignore some of the CPU stuff so it behaves differently.
post #20820 of 22605
Hwinfo has a setting that causes bclk to only be read once. That'll keep it at 100. Enable it.
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