So this happened some time ago. The GPU fan starts randomly spiking. It wasnt such an issue when it first started. Now it happens constantly.
Im not sure what to do? To be more specific its the "fan tachometer" thats shown in monitor that spikes. It started about 6 months ago, when i was doing nothing but browsing the net. It just spiked once for no reason and then went back to normal.
It would happen several more times over the months, just doing it once and then returning to normal.
Now when in game, it regularly spikes up and down constantly. This last time today, it wouldnt stop until I shut down precision x and restart precision x.
pic example
VBIOS: 86.02.39.01.90
Driver: 398.82
 
Any suggestions is appreciated, thanks.

Are you running a custom fan curve?
 
Set hysteresis to 5  (default is 0)

Ikasamashi
So this happened some time ago. The GPU fan starts randomly spiking. It wasnt such an issue when it first started. Now it happens constantly.
Im not sure what to do? To be more specific its the "fan tachometer" thats shown in monitor that spikes. It started about 6 months ago, when i was doing nothing but browsing the net. It just spiked once for no reason and then went back to normal.
It would happen several more times over the months, just doing it once and then returning to normal.
Now when in game, it regularly spikes up and down constantly. This last time today, it wouldnt stop until I shut down precision x and restart precision x.
pic example
VBIOS: 86.02.39.01.90
Driver: 398.82
 
Any suggestions is appreciated, thanks.

Just to confirm, when you shut down Precision,  then restart Precision, it acts normally? That reads more like you might have a software conflict. Do you have another other monitoring programs running?

Sajin - Yes, manually set static fan speed at 50% and still spikes randomly.
 
Cool GTX - Ive set it from 0 to 3 and it still happens (havent tried 5, but doubt that will fix it). Yes, running custom fan curve, same curve ive been running since ive bought the card, its more aggressive than "aggressive" mode. 
 
Bob - Ive used DDU prior to this result and it still happens.
I have several other monitor programs, but they are not running (open) while this happens. Nothing running in background.
I do not install geforce experience. 
I will run the card without precision x, but it will only run 1 fan in this state (gpu fan) which happens to be the fan that is spiking. Will report back after i have done this.
 
HeavyHemi - I shut down precision x and even after shutting down, it was still randomly spiking. It wasnt until I restarted Precision x that it went back to normal. So to be clear. Game was running, fan starts to randomly spike. I shut down game, fan still randomly spikes, I shut down precision x, fans still randomly spikes, I restart precision x, fans normalize.
 
Im leaning towards fan controller being broken, but does the card only have one controller or one for each fan? Because this is only happening to the GPU fan, power fan and memory fan are fine.
 
Thanks for quick response!

So to test fan, i would have to unplug the gpu fan from header and plug in a different fan, like a case fan? I dont have any fans that push those types of rpms. Or does it matter? I dont think the cables on the other fans are long enough to reach the gpu fan header?
 
Should I just start a RMA?
I have another card, its not like im in dire need of my 1080 ti, i just play games with it. It seems useless with adobe premier (CS5.5).
 
thanks again

thanks, will start rma tonight.

Give an update after RMA
 
(yes, GPU fans is what I meant)

Jacob - Yes, its been on "slave" so i can overclock it.
From what i understand, if its on "master" you can not overclock it. Im not sure if it doesnt "boost" either while in master?
 
Talked with the rep today and he also suggested to re-seat the card, which i did multiple times before posting here.
I asked about the vbios update in case it was software related. Unfortunately im assuming theres no update for the 1080 ti ftw3?
 
Its too late anyways, ive already sent it back. $50...  -_-  $30 to ship and $20 to insurance... It will get there next Friday. USPS is closed at 3pm. I get out of work at 3:30pm. So i had to go to UPS. Im assuming the box and packing mats where included in the shipping price? Its in its original box/packaging as well as wrapped in bubble wrap and popcorn filler. I think $20 is a small price to pay if they lose it or it gets stolen and then they owe me $850. As of right now, its going for $650 on amazon. I bought it at launch for $830.
 
I have a 1070 FE i can screw around with until then. Ive never overclocked it, but im going to get some more MX4 and see what i can do. So far im at +200/+300 stable. Sits around 67c (76f ambient) 2075/4303 (1440p). Not too shabby considering i was only getting 2000/5600 (1440p) on my 1080 with a +50/+100, but only went to 55c.
The difference is the 1080 has no problem hitting 144 constantly with no dips. I set the framerate to 120 though, just because and for whatever reason sits at 110....? While the 1070 struggles to keep 110 constantly dipping plus the fan is pretty much maxed out. pic.
both were set to 1440p on Skyrim with high settings, FXAA max and adjusted god rays to lowest as well as both shadows. 120 framerate capped in precision x.
 
I figured it had to be something with the hardware itself. Ive never had this happen on any of my previous cards ever.
 
Cool GTX - it will probably be some time before i get the replacement (3 weeks minimum). Rep said they just replace the card with a new one? I thought they actually fixed it?
 
Thanks again everyone.

Cool GTX -
Fans no longer randomly spike.
 
Runs a lot cooler as well.