Got this issue with my new 1080 FTW (ordered Sept 2 through Jet/OutletPC) yesterday while running Heaven with a bit of overclock, ~2025/5100 at 100% voltage boost (1081mV). Restarted and ran Heaven again, and it crashed within 15 minutes.
 
EVGA support suggested I try it in another machine, and it worked fine under a heavier overclock, ~2075/5100, with no crashes in Heaven for about an hour.
 
Put it back in the original machine, ran Heaven and Sky Diver for about 30 minutes each, along with 2 hours combined of GTA 5 and DX:MD, and no crashes yet. Overclock is still at 2075/5100 100%V, with temp around 75 C.

To any EVGA techs and anyone else reading this... for those having issues, what happens when you switch between the Master and Slave BIOS on the card? Could it have anything to do with the VBIOS shadowing/copying to the computer? (do computers still do that?) And that's why clearing CMOS or moving the card between systems helps some people or makes it work again?

Update:
 
Just got my 2nd RMA card today and I got the black screen fan issue again after running Heaven for 15min. Weird because Evga got my card on the 2nd, which is after stating the prob had been fixed.
So it seems they are still sending out cards that are broken. Going to get yet another RMA, I wont be paying for the sipping a 3rd time Evga.

Is debug mode the only Fix? I'm still getting black screen and fan usage at 100% Issue is getting worse. I do have an RMA but not being able to use my PC while this is fixed really isn't an option for me and honestly I'm starting to get irritated.

J0NOX
Update:
 
Just got my 2nd RMA card today and I got the black screen fan issue again after running Heaven for 15min. Weird because Evga got my card on the 2nd, which is after stating the prob had been fixed.
So it seems they are still sending out cards that are broken. Going to get yet another RMA, I wont be paying for the sipping a 3rd time Evga.

Wow! You're going for a third RMA!! unbelievable!! After my first card failed I decided not to take any chances and I'm glad I didn't otherwise I would have been in the same boat as you. I got an MSI card instead and it works amazingly well and much cooler.

wils07
Would it be possible to tell us how to replicate the problem so we can test for ourselves?
 

 

nextgencfl
Anyone know of a way to test this synthetically? 

I'm looking for an answer to this, in WoW:Legion I had this issue 3 times in total. I can run Heaven at max settings for 8 hours with no problems whatsoever. I have no idea what triggers this.

landerx74

J0NOX
Update:
 
Just got my 2nd RMA card today and I got the black screen fan issue again after running Heaven for 15min. Weird because Evga got my card on the 2nd, which is after stating the prob had been fixed.
So it seems they are still sending out cards that are broken. Going to get yet another RMA, I wont be paying for the sipping a 3rd time Evga.

Wow! You're going for a third RMA!! unbelievable!! After my first card failed I decided not to take any chances and I'm glad I didn't otherwise I would have been in the same boat as you. I got an MSI card instead and it works amazingly well and much cooler.

I hear you man. Glad to hear that your MSI is working great...Depending on what Evga say with this RMA, I may email amazon and ask for a refund. Though I has passed my 30 days return because of having to send back the cards to Evga. Evither way Amazon should refund me regardless and the product is no fit for purpose. Then I'll get an MSI card.

Dear J0NOX,
 
Thank you for your post.  I can confirm that we are checking with our EU office on your RMA and that we will have a follow-up to you first thing on Monday when they reopen.  Thank you for your patience.
 

J0NOX
Update:
 
Just got my 2nd RMA card today and I got the black screen fan issue again after running Heaven for 15min. Weird because Evga got my card on the 2nd, which is after stating the prob had been fixed.
So it seems they are still sending out cards that are broken. Going to get yet another RMA, I wont be paying for the sipping a 3rd time Evga.

Dear Rabb02,
 
I can confirm that Debug mode will help to stop the crashes until we can have the card replaced.  I am showing that you have a RMA processing for shipment and that the tracking information will be emailed to you later this evening.  
 

Rabb02
Is debug mode the only Fix? I'm still getting black screen and fan usage at 100% Issue is getting worse. I do have an RMA but not being able to use my PC while this is fixed really isn't an option for me and honestly I'm starting to get irritated.

tommyv2
To any EVGA techs and anyone else reading this... for those having issues, what happens when you switch between the Master and Slave BIOS on the card? Could it have anything to do with the VBIOS shadowing/copying to the computer? (do computers still do that?) And that's why clearing CMOS or moving the card between systems helps some people or makes it work again?

Nothing. Same thing happens. Tried for both my cards, sample size of two but that still says something for me.