For some unknown reason, lately, my GTX 1080Ti FTW3 Hybrid has been operating the blower fan on the card (not the radiator fan) at very high RPMs (what I'd consider to be "max"), despite anything that it's set to do in X1. I've attempted uninstalling and reinstalling drivers (cleaned via DDU first, then a fresh install), and I've also tried uninstalling and reinstalling X1.
 
GPU temps at idle are 33-34C, roughly.
 
If I leave the "auto" fan curve enabled in X1, the card will spin the blower fan up to ~3800RPMs, making a metric ton of noise. Interestingly, X1 states at this temperature, according to the default fan curve, the fan should be at 0%.
 
If I opt for manual fan control at 15%, the card spins the blower fan at ~3600RPMs, which is slightly quieter, but still doesn't make much sense. X1 does, in this case, show that the blower fan is operating at ~15%.
 
If I opt for manual fan control at 100%, the card spins the blower fan at ~2850RPMs, which is still slightly loud, but is tolerable. Much like the last manual use case, the fan duty cycle is accurately represented as 100% in X1.
 
I've included screenshots of "auto", "manual 15%" and "manual 100%" for example.
 
Any assistance would be greatly appreciated. Thank you.

cdcoulson
Thanks for all the help, guys. I did disassemble and clean the card. The only notable thing I found was one of the wires running from the pump to the header on the PCB near the fan must have been pinched/cut during assembly (I've never taken the card apart before now). The wire was visible, though not broken, and so I carefully dabbed some liquid electrical tape on the wire and allowed it to dry. Carefully reassembled the card, and everything appears to be fine now. I don't know how that would've caused a problem since the card surround is plastic, but.. the issue is gone. Although, quite possibly, reseating the connectors could have also resolved the issue. The card is now idling at 31-32C despite the same ambient temps (hm), and the card is now following the commanded duty cycle in X1.
 
If the issue comes back, I'll certainly follow your advice on trying older versions of drivers/X1.
 
Thanks again, guys. Happy that I can keep this 1080Ti chugging along for at least a little while longer! :)

Yeah it does sound like it was a plug in or that wire signal getting disrupted issue.  Glad to hear you got it resolved.
 
For reference though, Precision X1.1.0.11 is a Beta, and it is intended to only be used with 30-series cards, so that could also be an issue.  When I last had my GTX 1080 Ti FTW3 Hybrid installed, I was using 1.1.0.7 - still have the card, waiting on someone to get the money together to buy it off me, I will miss it when it's gone, been a good 2+ years :-D

Dabadger84
Yeah it does sound like it was a plug in or that wire signal getting disrupted issue.  Glad to hear you got it resolved.
 
For reference though, Precision X1.1.0.11 is a Beta, and it is intended to only be used with 30-series cards, so that could also be an issue.  When I last had my GTX 1080 Ti FTW3 Hybrid installed, I was using 1.1.0.7 - still have the card, waiting on someone to get the money together to buy it off me, I will miss it when it's gone, been a good 2+ years :-D

Interesting! I don't think I opted into any beta, but I definitely got the (paraphrasing, here) "there's a new update for X1, would you like to download it?" popup. If it's still finnicky, I'll revert back.
 
Dude, this card's a beast. I still haven't taken the plunge on a 2K/4K monitor (sorta stole your signature format, hope you don't mind too much), so I really don't have a need for anything 'better' at the moment. I might snag a 3080 whenever you don't need to fight/struggle to find one.
 

HeavyHemi
 
There you go, it was most likely poor contact on the plug. Mine is still going strong too. Nobody believes I get these temps just using two fans in push/pull on the rad and over clocked

Agreed. Yes, it's such a great card, IMO. I run push/pull on mine as well. I'm an EVGA GPU fanboy for life, lol.