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NVIDIA GTX 1080 Ti Owner's Club - Page 672

post #6711 of 10537
Hey guys I've just purchased two 1080 Tis and I'm currently working on max clock that I can achieve.

Cards seem stable at 2100+ but they constantly hit power limit, any possibility to raise that with a BIOS flash or do I need to shunt the resistors?

I know it has been discussed previously but I couldn't find about BIOSes

Thanks
post #6712 of 10537
I'm happy with a low power system now that I can have in the office [Asus Strix mItx, I7-7700k 4.9Ghz, 1080 Ti FE, EVGA 750 G3 gold PSU] It draws ~ 450 w at most. My previous rig was the X79 3970x 5.0-5.4 Ghz 4-way Titan Sli Modded, 2x Corsair AX 1200. I measured the power draw up to 1.9 KW from the wall. I realized many years ago that you can not make a high-performance PC and get it quiet, because the room temperature rices and fans increase. I have had my computers in the basement under my office for over 10 years. They are not heard and it is cold, 15-18 degree. I can handle 4-5 m cables for monitors and USB. That's all I need. I run external sound card. I never uses optical drive, but it also goes with an external.
post #6713 of 10537
Quote:
Originally Posted by radrok View Post

Hey guys I've just purchased two 1080 Tis and I'm currently working on max clock that I can achieve.

Cards seem stable at 2100+ but they constantly hit power limit, any possibility to raise that with a BIOS flash or do I need to shunt the resistors?

I know it has been discussed previously but I couldn't find about BIOSes

Thanks

If we had the option of bios flashing for higher tdp nobody would be shunt modding (except maybe LN2 overclockers). Imo it's not worth it for 24/7 usage, better downvolt them and find a sweetspot where your GPU won't be power limited (usually 1.000-1.0310).
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post #6714 of 10537
Thanks, do you also know if the fan is going to impact the power limit? I'm going to put waterblocks soon so that might help, I think.
post #6715 of 10537
Quote:
Originally Posted by radrok View Post

Thanks, do you also know if the fan is going to impact the power limit? I'm going to put waterblocks soon so that might help, I think.

It does but not a big difference (same as memory OC), you should get higher clocks because of your temperatures under water for the most part.

Btw, I think i'm reaching the limits of my card in terms of power limits:

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post #6716 of 10537
Yup, dropping voltage a bit certainly helps. Got a higher score with lower voltage (less power limited):

d76e954a_supo9mqq1.png
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post #6717 of 10537
i'll just leave this here . .

On Efficiency Warning: Spoiler! (Click to show)
Quote:
So you should get a PSU the size so that your peak draw is around 50% of the PSU's load, right? No, not in most cases. Think: 90% of the time your computer will be idling, usually drawing only 75W-200W, depending on the computer. So you want your computer to be very efficient in that power range. Generally you want your idle power draw to fall into ~30%-40% of the PSU's rated wattage, and your peak power draw to fall into ~70%-80% of the PSU's rated wattage.

The exception is with computers that will be under heavy load all the time, such as folding rigs. These should have the extra headroom anyway; a power supply should be chosen so that the computer is drawing ~60% of the PSU's rated wattage under folding power consumption levels. But this does not apply to computers that will be idle most of the time, like 99% are.
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post #6718 of 10537
Quote:
Originally Posted by AngryLobster View Post

The quality of the PSU is what's important, not the wattage.

My guess is you were using some garbage power supplies that just happened to be lower watt units so your educated electrical engineer brain jumped to conclusions.

Most quality units now carry 7/10 year warranties anyway.
His Rosewill Quark 1200W only has a 5 year warranty. Shows how much confidence they have in their own product.
post #6719 of 10537
Quote:
Originally Posted by TheNoseKnows View Post

His Rosewill Quark 1200W only has a 5 year warranty. Shows how much confidence they have in their own product.
I had a replacment Seasonic X-1250w V1 at the end of the 5th year, just before sending the unit I had received the new SS-1250XM2 1250W version thumb.gif Very glad that there are companies like them...thumb.gif
Edit: And all of this took place in Eastern Europe...quite a small market for a company with such scale point of view biggrin.gif
Edited by DStealth - 4/23/17 at 6:46am
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post #6720 of 10537
Quote:
Originally Posted by dunbheagan View Post

Superposition 4K, 1080Ti@2100/6000, 4790k@4800MHz: 10171 Points

Superposition 4K, 1080Ti@2100/6000, 4790k@4500MHz: 10265 Points

Funny, huh? I tried it couple times, results stay the same.

What are you doing with uncore/cache ratios? There is a relationship between core/cache deltas and memory bandwidth. Typically speaking it's usually best to maximize core speeds but perhaps SuPo is a unique scenario where memory bandwidth comes into play?
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