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post #1 of 7 (permalink) Old 06-15-2019, 09:14 PM - Thread Starter
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GTX 1080 overclock hack

So the recent GPU boost 3.0 employs throttling based off of temperature and voltage use. Because of this, the cooler the card, the higher the "power target", and the higher the "voltage offset", the better the overclock. All of these settings are using the EVGA PrecisionOC software (see pic).

Then today I was tinkering as usual, and came across the Nvidia HDMI audio processors in the control panel. This got me to thinking... why use these if I prefer to use the on-board audio? My monitor does not have speakers, I do not have a DAC, so why even have these audio processors enabled? I wondered if them being active meant they were still generating audio signals, sending them over my HDMI, but there were just no speakers on the other end to output the sound. If indeed this were true, boy what a waste of energy... and HEAT that would be?

Taking the next logical step in this investigation, I disabled the Nvidia audio processors both in the sound control panel and the device manager (see pic).

The results were really quite impressive! Temps were cooler by 10-15 degrees during timespy benchmark runs, throttling was less, and the final score was higher! Like 130 points higher (see pic... I went from 7,709 to 7,838)!

I wanted to share this with the community so you can try it yourself and share the results with us! After all this may very well be an innovative way to get extra performance out of your videocard for free! Or it may not mean anything at all, but let's find out! Good luck and happy overclocking!!!
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Last edited by bad_haze; 06-15-2019 at 09:34 PM.
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post #2 of 7 (permalink) Old 06-15-2019, 09:50 PM
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thanks for the info,i was doing that + manual install nvidia drivers without the sound options always with my pcs since i neither use vga audio ,without knowing the benefits of it.

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post #3 of 7 (permalink) Old 06-20-2019, 12:45 PM
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WOW! This is a big deal! I'm sure this would apply to the 1070 as well. I have Xear Audio and run a 5.1 system through it. My Acer monitor has speakers but of course, I don't use them. I need to re-read what you did and see if I can duplicate those changes.
Thanks,
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post #4 of 7 (permalink) Old 06-20-2019, 01:21 PM
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+rep! Doing this just let me raise my resolution modifier in AC Odyssey from 90% to 100% and still get a smooth 60 at 4k with a 1080ti. Couldn't do that with the unused audio still enabled.
Here's an AB screenshot of running the internal bench at 90%, then 100% resolution modifier. It's going to look a lot better in 5 minutes when I play
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post #5 of 7 (permalink) Old 06-21-2019, 09:35 PM
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Great! Love things like this!

my 1809v2 project, A gaming/security build @ 1GB RAM footprint. Cool temps to say the least.

https://i.imgur.com/Xa8MUYy.jpg

https://i.imgur.com/jSAoRaW.jpg

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post #6 of 7 (permalink) Old 06-21-2019, 09:39 PM
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Which one is it to disable if we're on RTX cards?






Quote: Originally Posted by Rocklin View Post
Great! Love things like this!

my 1809v2 project, A gaming/security build @ 1GB RAM footprint. Cool temps to say the least.

https://i.imgur.com/Xa8MUYy.jpg

https://i.imgur.com/jSAoRaW.jpg

Can I get the 1809v2?

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post #7 of 7 (permalink) Old 06-22-2019, 11:53 AM
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Quote: Originally Posted by rluker5 View Post
+rep! ...
Here's an AB screenshot of running the internal bench at 90%, then 100% resolution modifier. It's going to look a lot better in 5 minutes when I play
Would 10% make that much difference in your graphics?

I did go into my Device Manager and scrolled to "Sound Video and Game Controllers". There, I disabled the "Nvidia High Def Audio" and the "Realtek High Def Audio". I have a 5.1 USB Xear Sound system and don't need any of the others.

However, my device manager layout doesn't look like the one in either of the posted screenshots. I have Windows 7 64bit and perhaps the screenshots you all posted is of the Device Manager in Windows 10?

I'm not a gamer but I am a 'flight-simmer' with a flight sim platform, (FSX), that's CPU intensive. However, my 1070 does pick up some of the load so this may help. The 3rd party High-resolution add-ons I've installed over a period of 10 years, forced me to learn how to build my computers I have now.

Even with my 4790K OC'd to 4.8GHz, I can still crash to a blue screen if I get into heavy weather while over a large city like New York, LA etc.

This, change on its own may not make a lot of difference in my particular case but shutting down unused, wasteful, programs that draw power from any of the processors will add up.

Last night I bought a program called "Process Lasso", which allows me to surgically shutdown any programs I want and save my alterations as a profile, which I can then recall whenever I want to fly.

I should see an improvement but I haven't tried it yet. I plan to start it and set it up in about 30 minutes.

BTW:
My monitor is capable of 4K x 30Hz (3840 x 2160) and 32bit “True Color” (TC). However, I run it at 4K 2560 x 1440 x 30Hz and 32bit TC. The flight sim platform (FSX), can be adjusted to match that but I read somewhere that reducing the Monitor’s resolution settings will reduce the power drawn from the CPU. I did drop my resolution to 1080P x30Hz and changed over to 16bit “High Color” (HC).

I can’t say that I noticed any difference in the CPU’s ability to handle the scenarios that typically cause the sim to crash. Does anyone know if reducing the monitor and sim resolutions actually helps the GPU and not the CPU?
Rich

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