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Skylake Overclocking Guide [With Statistics] - Page 331

post #3301 of 11360
I know this is a bit off topic, but do you guys have any suggestions for a good fan profile for my radiator fans and case fans?

I know it depends upon your fan setup/radiator setup/etc, but I am wondering what you guys generally have set (in terms of fan percentage) at the major temp points (30,40,50,60,etc). Any help or input here?

I have a Kraken x61 AIO (with Fractal Venturi HP-14 PWM fans) and (4) be quiet! Silent Wings 2 PWM fans for my case.
    
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post #3302 of 11360
This may have been answered in one of the previous 160 pages but...

Is it normal that my i7-6700k took less time for a single loop of the x264 stress test on stock settings than it did at 4.6GHz/1.40V ?

Stock: encoded 2121 frames, 3.47 fps, 36016.71 kb/s
OCed: encoded 2121 frames, 2.60 fps, 36016.71 kb/s


I'm downloading Cinebench now to use as a proper benchmark and will run it at stock and OCed to compare.


Edit....

So, I ran Cinebench with my current 4.6 / 1.40 overclock and am getting weird results... I ran the benchmark a couple times and got different results, so I decided to run it 4 times in a row and note the results:
  • 902
  • 789
  • 832
  • 683

I also captured the CPU temp and CPU clock with HWiNFO:



Why does my CPU constantly drop to 800MHz, even when it's supposed to be under heavy load?
Is it thermal trottling? That would be surprising, since it never went over 70°C...

Edit 2...

I took a couple minutes to type up the previous edit, ran Cinebench again, and it went through the whole run without dropping to 800MHz. That gave me a score of 990.

How can I get it to always behave this way? tongue.gif

Edit 3...

I decided to run an x264 single loop test with high priority. Here are the temperature and clock speed graphs:


Does the i7-6700k thermal throttle at ~70°C ?

I'm going to set my CPU and SYS fan settings in BIOS to run at full speed, see if that keeps temperatures down and clock speeds up.


Edit 4...

Nope, same behavior with max fans... just noisier (my CPU cooler is a Corsair H90).
Edited by Klutz0 - 10/28/15 at 10:47pm
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post #3303 of 11360
HWinfo has few spots where it shows if you're throttling for one reason or another, do they show anything?
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post #3304 of 11360
Well, I was typing up edit #5 while prime95 ran in the background... but then it crashed.

I noticed the following:
  • The CPU temps jump 30 degrees instantly when the frequency jumps to 4.6GHz. The instant jumps don't seem normal to me... I'd expect a rapid, but gradual rise - no?
  • Two values were sometimes showing "yes": "RING: VR Thermal Alert" and "IA: VR Thermal Alert". They'd show "yes" when the frequency dropped to 800MHz.

I've reset everything to stock for now, and am running the x264 test. I still get very frequent drops to 800MHz, but it spends most of it's time at 4.0GHz. And the "VR: Thermal Alert" readings never say "Yes".

Now trying out prime95...

Edit:

Well, with prime95 I right away started getting "RING: VR Thermal Alert" going to "yes"...

I switched to prime95 at the mid-point of the graphs:






I'm at a loss here... Someone please enlighten me frown.gif
Edited by Klutz0 - 10/29/15 at 12:01am
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post #3305 of 11360
Can someone tell why the 2 different readings in vt with hwinfo - you get one at the top then further down ? thumb.gif

1.240 v




1.200 v



the above is = to Aida64 1.200 v
post #3306 of 11360
Quote:
Originally Posted by Klutz0 View Post

I'm at a loss here... Someone please enlighten me frown.gif

Also shows PROCHOT triggering which isn't great lol

Update to latest beta hwinfo to make sure it's getting right readings..
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post #3307 of 11360
Quote:
Originally Posted by Klutz0 View Post

Well, I was typing up edit #5 while prime95 ran in the background... but then it crashed.

I noticed the following:
  • The CPU temps jump 30 degrees instantly when the frequency jumps to 4.6GHz. The instant jumps don't seem normal to me... I'd expect a rapid, but gradual rise - no?
  • Two values were sometimes showing "yes": "RING: VR Thermal Alert" and "IA: VR Thermal Alert". They'd show "yes" when the frequency dropped to 800MHz.

I've reset everything to stock for now, and am running the x264 test. I still get very frequent drops to 800MHz, but it spends most of it's time at 4.0GHz. And the "VR: Thermal Alert" readings never say "Yes".

Now trying out prime95...

Edit:

Well, with prime95 I right away started getting "RING: VR Thermal Alert" going to "yes"...

I switched to prime95 at the mid-point of the graphs:






I'm at a loss here... Someone please enlighten me frown.gif
Might be badly applied TIM. Sudden temperature spikes are normal, its just that heat cant transfer fast enough between the die and the dissipator.

I would reapply the termal paste
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Masterrace again
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post #3308 of 11360
Quote:
Originally Posted by Cyro999 View Post

You need a certain amount of vcore, adjusting IO/SA etc doesn't allow you to raise core clocks without raising vcore

I found PPL Bandwidth optinon, Asus suggests level 6 to 8 fro high OC, so I set lvl6 to start.
Sure it made it stable, could run prim95, but temps rised sharp to 85 (from 75 at 4.6 with same vcore), so I didn't stress it more.

Summary: 6600k stable 4,7ghz (47x100) with 1,4 vcore in bios with lvl6 LLC , real vcore going up to 1,45v under load, PPL bandwidth set to lvl6, but temps raised to 85c (water cooling H110i)

I feel like it is stretching it, or would you be guys comfortable with 85c peak (prime95) and 1,45 vcore ?
Edited by Balu0 - 10/29/15 at 3:09am
post #3309 of 11360
Quote:
Originally Posted by ladcrooks View Post

Can someone tell why the 2 different readings in vt with hwinfo - you get one at the top then further down ? thumb.gif

1.240 v




1.200 v



the above is = to Aida64 1.200 v
Because one is VID and the other Vcore??
post #3310 of 11360
thanks for the answer thumb.gif

i found this as well if anybody else wants to know more

http://www.overclock.net/t/1238019/what-is-cpu-vid[/URL]
Edited by ladcrooks - 10/29/15 at 4:37am
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