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i5 4670k@4.5Ghz stable but CPU-Z shows 0.960v full load voltage? - Page 2

post #11 of 15
Quote:
Originally Posted by ViTosS View Post

Yes he did enabled the C-states but the voltage is set at 1.19v, the frequency varies but not the vcore

Well then what's the fixed VCore value he's using?
Quote:
Originally Posted by fleetfeather View Post

Ahh, your friend must be using the 'fixed voltage' method for overclocking, rather than the 'offset method'. I'm still relatively new to overclocking, so I'll only be able to help out if your friend happens to have a Gigabyte motherboard. If he has a different type of motherboard, you may need to check some guides for it or start a new thread asking for some more specific help thumb.gif

In Haswell, fixed VCore does cause fluctuations...
post #12 of 15
Quote:
Originally Posted by Ali Man View Post

Well then what's the fixed VCore value he's using?
In Haswell, fixed VCore does cause fluctuations...
I'm not familiar with Haswell sorry (see sig). In any case, I don't think fluctuations would be an issue if using the offset method, right?
    
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post #13 of 15
Quote:
Originally Posted by fleetfeather View Post

I'm not familiar with Haswell sorry (see sig). In any case, I don't think fluctuations would be an issue if using the offset method, right?

Well for Ivy Bridge, offset is great to bring the temps low on idle. Haswell is a lot different, I haven't seen offset, but rather adaptive, which is more like a modified offset, but in this case, Fixed VCore mode is a lot better.
post #14 of 15
Quote:
Originally Posted by Ali Man View Post

Well for Ivy Bridge, offset is great to bring the temps low on idle. Haswell is a lot different, I haven't seen offset, but rather adaptive, which is more like a modified offset, but in this case, Fixed VCore mode is a lot better.

Ahh righto, looks like I'm out of my depth then. GL to the OP with resolving the issues then thumb.gif
    
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post #15 of 15
Like I said, Asus haswell boards are a bit weird. When I had AI suite and an old BIOS installed, the 4670k would do what you wanted: hold steady at 4.4 under load and slow down otherwise. Ever since I updated the BIOS and removed AI Suite, I CANNOT get a steady 4.4 on any core without disabling speedstep.

What helped: raise the current and power limits, should be somewhere under power settings.

I'd still recommend you do what I said to do before: lock it at 4.5GHZ and enable the C7s state. Even though my voltage and frequency are technically "locked", 3-4 of my cores go all the way down to 0V at idle, and 1-2 of them usually rest at very low voltages during web browsing.


Vcore is the true voltage, and that was browsing OCN with manual voltage and speedstep disabled. Notice how the cores "sleep" when necessary even though the system thinks nothing is idling.


EDIT: Also, offset voltage just offsets everything by a certain V, adaptive is similar but basically keeps stock voltage and lets you set a turbo voltage, manual is manual.


EDIT2: Also, CPU-Z has a bad habit of reading VID, not Vcore. Try HWinfo64 and see what it says.
Edited by brucethemoose - 10/20/13 at 1:13am
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Bruce
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