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The Pascal GTX 1080 Owners Thread

DAIR said:
The difference between this card and my 3/4 month old gtx970 is amazing. I'm having trouble taking this all in.
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Enjoy mate! Get firestrike done. What's your system spec? Not had much chance to test mine out much had a thumping headache all evening!
 
What's the best program to use to OC the 1080 see how far I can push it? What would be a good starting point?
 
Spikey said:
What's the best program to use to OC the 1080 see how far I can push it? What would be a good starting point?
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Afterburner or EVGA precision X.

I prefer Afterburner personally.

See what the boost clock is at stock. Add core clock needed to reach 2ghz. Keep increasing/decreasing at 20mhz a time until unstable then fine tune with 10mhz.

I'd max the voltage and power limit in either utility aswell.
 
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tyler_jrb said:
Afterburner or EVGA precision X.

I prefer Afterburner personally.

See what the boost clock is at stock. Add core clock needed to reach 2ghz. Keep increasing/decreasing at 20mhz a time until unstable then fine tune with 10mhz.

I'd max the voltage and power limit in either utility aswell.
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Thanks, what's the best way to test stability?
 
Boomstick777 said:
Went for an EVGA FE today :P

Couldn't wait for custom cards lol. Will pass this onto my boys when the EVGA Hybrid comes along. Be awesome if OCUK can deliver this tomorrow (:
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When it arrives do I put you on TROH or would it be easier to have a separate one just for you.:D


The Roll of Honour.

EfCkkXi.jpg


Date 04/06/2016, Make Asus FE, Boomstick777, Link
Date 18/06/2016, Make EVGA FTW, Boomstick777, Link
Date 29/06/2016, Make Asus Strix, Boomstick777, Link
Date 04/07/2016, Make EVGA Hydro, Boomstick777, Link
Date 15/07/2016, Make Gigabyte Extreme, Boomstick777, Link
Date 30/07/2016, Make MSI Lightning, Boomstick777, Link
Date 12/08/2016, Make iChill X4, Boomstick777, Link
Date 28/08/2016, Make Asus Matrix, Boomstick777, Link
Date 06/09/2016, Make EVGA Classified, Boomstick777, Link
Date 29/09/2016, Make OcUK FE, Boomstick777, Link


To get on the Roll of Honour all you have to do is post a pic with your user name on it of your GTX 1080.​


:D:D:D:D
 
Pre-ordered an EVGA FTW on the 2nd June, I know I'm probably quite far down in the queue, fingers crossed for the first batch, but likely to be 2nd (or 3rd) I'm guessing.
 
I got my MSI 1080 FE yesterday and put a water block on it straight away. Not had a chance to play with it yet though.

Have any other owners had a chance to check their ASIC quality? I just looked and mine was 94.2% which seems waaaay higher than any other card I've bought in the past.
 
for putting 1080s in SLI with "older" bridge. Do i need to use 2 of them or just one? First time with "proper" SLI (ive owned gtx 295 and 690 in the past.).
 
Has anyone else got the fan ramping up and down at times issue. I see Nvidia are working on a fix already, but damm is it not grating on me!

LewisRaz said:
for putting 1080s in SLI with "older" bridge. Do i need to use 2 of them or just one? First time with "proper" SLI (ive owned gtx 295 and 690 in the past.).
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What do you mean by older bridge? Either way stick whatever bridge you have on and it will work. Apparently if its the bendy flexible one it means more data is sent through PCIe. I will admit though I tried the Nvidia LED one, EVGA LED one and flexible bendy one and not really seen a diffrence in terms of real world experience, so I would just chuck on a single bridge of whatever you have.
 
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Radox-0 said:
Has anyone else got the fan ramping up and down at times issue. I see Nvidia are working on a fix already, but damm is it not grating on me!



What do you mean by older bridge? Either way stick whatever bridge you have on and it will work. Apparently if its the bendy flexible one it means more data is sent through PCIe. I will admit though I tried the Nvidia LED one, EVGA LED one and flexible bendy one and not really seen a diffrence in terms of real world experience, so I would just chuck on a single bridge of whatever you have.
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TY. I was confused as the HB ones obviously use both fingers.
 
LewisRaz said:
TY. I was confused as the HB ones obviously use both fingers.
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Yeah, my nvidia uses two fingers, while evga is single finger as is the bendy one. For at least 3440x1440 I did not notice any appreciable diffrence really. I mean if you already have a two finger one may be worth trying it to see if it makes a diffrence for yourself. Would be curious as to how other people get on :)
 
Pretty interesting guide I saw posted on OCN, thought I would share here:

https://xdevs.com/guide/pascal_oc/#voltsc

There were some rumors spreading wildly these days regarding “1.25V limitation” or whatever on modified GTX 1080 cards, which requires here few words to explain.

Hardware itself is well capable of getting to that and above voltage output for GPU core, but GP104 chip itself now more sensitive to voltage, than even previous Maxwell generation. Part of it due to thinner physical process, other part due to challenges removing heat from all those tightly packed 7.2B transistors quick enough from 21% less surface area. Those overclockers who did 2200+ MHz on GTX 980 Ti’s are well aware of all things required to achieve those high clocks. Same principle applies to Pascal generation. So if you can manage to keep GPU cooled well and have good voltage delivery to it, you indeed can push higher voltages. Cards cooled by liquid nitrogen during this guide testwork were able to run 1.35-1.4V, reaching speeds over 2500 MHz.

Fact that GTX 1080’s capable of reaching 2.1GHz on aircooling without any modifications confuse lot of people, making them to think that these chips can overclock well past 3GHz on liquid nitrogen cooling. But it’s still silicon, with similar architecture, so reality is bit sour. Yes, it allow to get good performance without extreme cooling, but hides the fact that LN2-cooled 980Ti is still much faster than overclocked GTX 1080 due to more shader cores and better CPC performance.

This also brings and answer to the question if overvolting can help OC on aircooling or watercooling. It does not help, due to thermal, which get only worse. Higher temperature render stability and performance decrease. GPU literally overheats and cannot run high frequency anymore, even though temperature is below specified maximum temperature. So just like in 980/980Ti/TitanX case, over-voltage is not recommended, as it gains no performance improvement.
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While it is mostly about LN2. Will be neat to see if and how for example it will extrapolate to aftermarket cards cooled under water for example able to draw more power.
 
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