Undervolting with ThrottleStop - safe solution?

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kizu7su

Sep 1, 2018
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I had another thread about an i7 6700k Skylake going up to 1.5v during load, when rated for 1.35v. Here is that thread for reference: http://www.tomshardware.com/answers/id-3777031/intel-6700k-temps-voltages.html#21293357

I could not get proper documentation on the Aptio AMIBIOS software that is running on my mainboard to try and get the voltage capped lower (static or dynamic, preferring dynamic), but I found a thread about ThrottleStop.

I downloaded ThrottleStop 8.6 and followed the guide pasted from another forum below as a test.

Under the same circumstances (and I didn't even use the MAX Power setting yet), I achieved adaptive under-volting and a max load CPU heat drop from 83/84c to 68c - using all the very same conditions. I don't even need to run ThrottleStop again, or have it start with Windows and run in the background.

Is there any worry about using this approach? I'm still researching this app, but I'm really outside of my current experience with the heat problems. This seems a little too easy.

Thank you for your time!


Here's the guide I used:
Settings I recomend:

FIVR BUTTON:

-CPU CORE:
Unlock adjustable Voltage
Adaptive
First slider - all to the left until Default shows
Second Slider - Undervolt (try -100mV)

- CPU Chache
Exactly the same as CPU CORE

Check the "Save Options to INI when ThrottleStop exits"

TPL BUTTON:
Speed Shift Tecnology enable
Enable Speed Shift when TS Starts

After this just try higher or lower Undervolting settings. If something goes wrong just reduce the amount. Most Skylake CPU can go -150mV and more. But it depends if the are in OC or not and on the CPU itself. 
Try it!

Check everything with HWInfo64 and see how the voltages on the CPU change.
Use MAX Performance on the Power settings.

NOTES:
On the FIVR menu you can play with the multipliers on the left side. You can OC or not on demand. Just find whatever you are confortable with. For now I'm with 3.8Ghz, since the temps are fine. 
I just made a shortcut to the ThrottleStop in the desktop. There is a way to make it start auto, but I havent been able to. Not really a problem."
 
Solution
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Every system is unique. If nothing else on your system is changing voltages, when you exit ThrottleStop, the voltages will remain exactly the same as you set them in ThrottleStop. If you go into hibernate or standby mode, the voltages and your Speed Shift settings will be reset. After that, you will have to restart ThrottleStop.

When properly setup, TS consumes very few resources or CPU cycles. It also has a Stop Data option where its CPU consumption will drop to virtually zero. Most people just leave it running. You can hide its icon too if you do not like looking at it. One of those set it and forget it solutions, especially when...
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unclewebb

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Sep 11, 2007
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> There is a way to make it start auto, but I havent been able to.

http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/#post-6865107

Intel ships millions of CPUs. Intel has always used a little bit of extra voltage to guarantee long term stability. If you do some testing, you will find that almost all Intel CPUs can run 100% reliably with less voltage. Under volting has been around for years. As long as you do some testing and your CPU is stable, less voltage is a good thing. You will create less heat and waste less power. If Intel could find a way to better match voltage to what is actually necessary, the world wide reduction in power consumption would be immense.

Stay tuned for the next version of ThrottleStop. It will be released shortly.
 
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K

kizu7su

Sep 1, 2018
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Hey Larry!

I just ran a benchmark inside Intel XTU, and I didn't see the throttles hit yes/yellow at all. Max processor frequency hit 3.78GHz, highest temp was 63c, and the score was 1219 Marks.

I ran Prime95 v26.6 small FFT tests while monitoring with XTU and HWMonitor, and the temps were at 60c while at 100% CPU for 4 minutes or so, and I still didn't see the throttling in XTU. Voltage stayed around 1.2v.

Thank you!
 
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kizu7su

Sep 1, 2018
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Hey unclewebb,

Thank you for the info! I hadn't thought of using a logon task, but that would work. That was a quote from a different form, I just included everything that the poster said, just in case it was pertinent.

Can you confirm that ThrottleStop doesn't need to be running for the effect to be active? Because I haven't had it running and the values have stayed put, which is a pleasant surprise. Otherwise, is there a reason to have it running? I'm still ingesting all of the readme's during my research for this whole fun affair, so I apologize if that's common knowledge.

I agree on the world wide power consumption. Even on an individual scale, while testing this issue the past few days, a compressor on my A/C unit went out. I won't speculate that Intel's cavalier attitude towards heat generation made my A/C work itself to death, but it can't be ruled out, either. lol

I'll be looking for the release notes, thank you sir!
Josh
 
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unclewebb

Guest
Sep 11, 2007
247
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Every system is unique. If nothing else on your system is changing voltages, when you exit ThrottleStop, the voltages will remain exactly the same as you set them in ThrottleStop. If you go into hibernate or standby mode, the voltages and your Speed Shift settings will be reset. After that, you will have to restart ThrottleStop.

When properly setup, TS consumes very few resources or CPU cycles. It also has a Stop Data option where its CPU consumption will drop to virtually zero. Most people just leave it running. You can hide its icon too if you do not like looking at it. One of those set it and forget it solutions, especially when you add it to your Windows startup sequence.
 
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Solution
K

kizu7su

Sep 1, 2018
13
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Thank you unclewebb, I'm setting up the logon task now, I love safe set it and forget it, lol. I think I'll call this one closed - I have all the information I need.

Thanks everyone!
 
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