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My CPU behaves wierd, i think? Skylake 6700K

post #1 of 5
Thread Starter 
Now maby this is the way skylake temp works with the new 16nm architecture works. But i got to ask...

My CPU 6700k came with a stock voltage of 1.345 (!) with the standard clock 4ghz and boost to 4.2 ghz

I usually try to find the lowest voltage on the stock speed, which in this case i think should be 4.2ghz, and then work my way up from there.

My quicktesting before the "long run testing" consist of 10 min Aida64 stresstest and 2 loops of realbench HWbot edition.
I did find that a lot of my manual vcore settings passed aida64 but not the video encoding in realbench.

NOTE :

  1. "Vcore in OS" is the idle voltage (manual)
  2. These are the stable voltages that i could, find not all the voltages that was tested
  3. GPU running idle in all tests
  4. I find that LLC 5 on the asus maximus hero motherboard was kind of a sweet spot for minimum vdroop and not overshooting the voltage to mutch.

END OF NOTE


This is the result



Now i find it interesting that the stable voltage for 4200mhz is 1.130 when the chip came woth 1.345 out of the box.
And that the Vcore readout in the OS with LLC 5 and Vcore load behaves different depending on what voltage i run on the core.


1.130v load voltage was vdrooping to 1.120, and 1.220v vdrooped to 1.216 but not other voltage had that behavior.


Is these voltages and voltage load behaviors the norm for skylake?
I come from Haswell and before that sandy bridge.

And the dont get me started on the temps.

I run a Define S with two PE 360 radiators that i want to run around the 700- 1000rpm depending on temp.
For this test the fans fluctuated between 750 and 800 rpm with a fixed fanspeed.
Warning: Spoiler! (Click to show)


Dont have a windowed side panel so dont care so mutch for estetics tongue.gif

My room temp that summer day was hot with 28c but delta of 35 under 1.3v ?
Maby i was hoping for to mutch with the temps with this 16nm chip?


I was sure the delta was going to be mutch lower concidering that i my 980 TI Ocd to 1585mhz @ 1.25v gets to 50c after 6h of witcher 3

Is the skylake chip hotter then the other?
What temps are you watercooling masters experiencing?



The fanspeed @ 4600 did ramp up because i forgot to turn of my fan profile and i was to lazy to let the cpu cooldown for a re-test. biggrin.gif
Edited by Stalefish - 7/24/16 at 12:32pm
post #2 of 5
28C with a delta of 35C, so the CPU got to ~63C? Seems fairly normal to me. I've always gotten much lower temps on graphics cards versus CPUs in the same loop (~45C on my 7950/290X vs ~65-68C on my 5960x with both stressed with a room temp of ~24C). Looking at your loop, is the pump feeding the rad in the front of your case first, or going to the CPU first?
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post #3 of 5
Thread Starter 
Quote:
Originally Posted by superericla View Post

28C with a delta of 35C, so the CPU got to ~63C? Seems fairly normal to me. I've always gotten much lower temps on graphics cards versus CPUs in the same loop (~45C on my 7950/290X vs ~65-68C on my 5960x with both stressed with a room temp of ~24C). Looking at your loop, is the pump feeding the rad in the front of your case first, or going to the CPU first?

Hm i just figured that 2x360 rad would get better temps then the low 60is. I mean what temps do you reach with an air-cooler then? 85c with 1.3v?
That seems kind of crapy. I hade the Noctua Dh15 with my 4770k overclocked to 4.4ghz with 1.27v and i got about 70c

The order of the rads in a loop dont mather more then 1-2c but the order is

res/pump -> cpu -> rad -> gpu -> rad -> res/pump
post #4 of 5
ASUS Multicore Enhancement is enabled at default settings (auto), so to turbo all cores the board applies a high vcore to ensure no instability for all chips used
post #5 of 5
I should clarify, I meant the high stock auto voltage at stock clocks
Quote:
My CPU 6700k came with a stock voltage of 1.345 (!) with the standard clock 4ghz and boost to 4.2 ghz
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