I've always used arctic silver on my intel cpu's...  older model geforce cards I had a few that had crummy thermal tape instead of good quality paste so I would remove the heatsink and reset it with arctic silver.
 
Just wondering what evga uses on these 1080's  ?
 
 

I'm not sure, but given that my 1080 FTW has gone from idling at 40 C to idling at 60 C (and hitting 92 C under load) over the course of two days, I would be prepared to replace the paste.

scoakley
I'm not sure, but given that my 1080 FTW has gone from idling at 40 C to idling at 60 C (and hitting 92 C under load) over the course of two days, I would be prepared to replace the paste.

WOW - are your GPU fans spinning? I ask because that is way too hot.
 
As to the OP, I'm not certain which paste is used - I also replace their paste with ICDiamond just because they tend to have too much paste applied. 
 
The nice thing is that with EVGA replacing the paste doesn't void the warranty - as long as you don't short out anything by using electrically conductive TIM.

I think people are bit obsessed over the thermal paste. Watch this -
https://www.youtube.com/watch?v=rAid5G30-WM
 

Shin-Etsu

We are allowed to use liquid thermal metal compounds like the Conductonaut (http://www.thermal-grizzly.com/en/products/26-conductonaut-en) if we don't destroy anything on the card, right? It would only void the warranty if I short out anything with it?

Shin-Etsu has decent ratings on Newegg. I'll probably just leave the default Shin-Etsu on my 1080.
http://www.newegg.com/Pro..._-35-150-080-_-Product

shinetsusilicone-global.com - Thermal Interface Materials
http://www.shinetsusilicone-global.com/products/function/heat/index.shtml
 

makikatze
We are allowed to use liquid thermal metal compounds like the Conductonaut (http://www.thermal-grizzly.com/en/products/26-conductonaut-en) if we don't destroy anything on the card, right? It would only void the warranty if I short out anything with it?

 
If you get it on anything, you can guarantee you won't have a warranty.  If it eats the cooler, you can also guarantee it won't have a warranty.  You don't need liquid metal, as it won't improve air flow or lower temp all that much more over thermal grizzly kryonaut, Gelid Extreme, or Artic MX-4, which are all non metallic, non capacitive, and will not void your warranty. 

@Scarlet-Tech
 
Thanks for your answer. So if used properly, there is no problem with that. But you would also recommend using Kryonaut instead (I have Conductonaut and Kryonaut here; only used Conductonaut for my CPU between DIE and heatsink). So I will replace EVGA's themal paste with my Kryonaut, then.
 
Can't wait to get my hands on the FTW I pre-ordered at a German official EVGA retailer