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post #61521 of 68054
It's not about stability but Voltage scaling per C-States. Some boards don't down volt when Power Saving features are enable in an overclocked system.
post #61522 of 68054
AFAIK on some boards offset voltage bumps voltage in all C-states where absolute voltage settings do not.
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post #61523 of 68054
Quote:
Originally Posted by mus1mus View Post

It's not about stability but Voltage scaling per C-States. Some boards don't down volt when Power Saving features are enable in an overclocked system.
Quote:
Originally Posted by KarathKasun View Post

AFAIK on some boards offset voltage bumps voltage in all C-states where absolute voltage settings do not.

I think mine does, Again, not booted it in a long time so not 100% but I would say it does.
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post #61524 of 68054
One little detail i discovered is my board defaults off set by +0.05v which bumbs the vCore but also the CPU-NB voltage.

I was shocked when i upped the CPU-NB from stock 1.20v manually to 1.25...and was reading 1.30v in software.

Figured it out though.
post #61525 of 68054
Quote:
Originally Posted by KarathKasun View Post

AFAIK on some boards offset voltage bumps voltage in all C-states where absolute voltage settings do not.
Which is helpful when C-States are changing depending on the LOAD. Full Load State may not be the issue but the middle States that need the Voltages to correspond their clocks.
post #61526 of 68054
Any body experience with a asrock extreme 4 990fx runnig stable at 4725ghz but what is posibble with this bord? and is it with amd the same like with intel, good clockers run hot??
post #61527 of 68054
No, they are not like mainstream Intels. Pretty close to i7 Extremes when it come to heat production and management.

That board may pretty well be your shortcut to smoking and popping components. Poor VRM design and cooling.

4.7 may require a top air cooling or 240 mm AIO coolers.

These processors clamor to be (over)clocked and cooled to unpeash their potential.
post #61528 of 68054
Quote:
Originally Posted by mus1mus View Post

No, they are not like mainstream Intels. Pretty close to i7 Extremes when it come to heat production and management.

That board may pretty well be your shortcut to smoking and popping components. Poor VRM design and cooling.

4.7 may require a top air cooling or 240 mm AIO coolers.

These processors clamor to be (over)clocked and cooled to unpeash their potential.

running good at 4.7ghz, vrams no problem, i,m cooling it withe the cooler master liquid pro 240
post #61529 of 68054
Lucky you then. thumb.gif

Don't neglect airflow on the VRMs and don't push it further when voltages required would be high.
post #61530 of 68054
Quote:
Originally Posted by mus1mus View Post

Lucky you then. thumb.gif

Don't neglect airflow on the VRMs and don't push it further when voltages required would be high.

for 4.7ghz i use 1.3625v in bios, under load it will give me 1.4v i have the corsair 730t case with 2 fans in the front , (intake), 1 in the rear (outtake), 2 fans on the cooler pushing hot air out, and 1 fan in the bottom pushing cold air in.

i did a 3d vantage run at 4.864ghz and just set the voltage at 1.3875v in bios, load it was 1.432v

tried 5.0ghz at 1.4v and made a cpu-z validation, http://valid.x86.fr/5np1gc
Edited by turbobooster - 7/27/16 at 5:44am
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