Naveronasis
Neither windows, open hardware monitor, or afterburner can see the temps, fan speeds, voltage, clock, bios/driver revision of my 1080ti black edition. I have never overclocked the card I use afterburner only to monitor statistics and occasionally increase fan speed manually to 100% My case has very very good airflow (Mountain Mods H2GO with 2x 120mm fans less than 3in from the graphics card blowing air directly on the face of it) keeps the card very very cool at all times. The card still works, it accepts drivers it shows up as a 1080ti in device menager and after burner... I just get no sensor information. Is this a weird windows issue (I have tried fresh drivers) or is there an issue with the card? It is nearing 1 year old so if It is starting to break down I should RMA it asap. Also the card has very low usage. I was an over the road trucker until recently which means even though its a year old... it has spent 99% of its life powered off.
 

Some more detail on your system would help. What OS are you running? Which drivers?   Have you tried using DDU
https://www.wagnardsoft.c...er-ddu-v17086-released
to uninstall the drivers and do a clean install of them?
 
It probably wouldn't hurt to reseat the GPU in the PCIe slot, check all other connections. And 86C on your CPU seems a bit toasty for not being under a full load.

I was the CPU temp was actually a bit surprising. I did some looking into it. Some of the software controlling curves on the motherboard had stopped working. I reinstalled it and everything returned to normal. As you can see in the image, even under 100% load (running pubg 4k, 120% scaling max settings just as a test) with cine-bench running at the same time. Things got a little toasty for the CPU but not the GPU. You may notice the CPU changes temps VERY FAST, this is not a bug. Its using a thermo electric cooler. Ambient here is 32c right now. Given that the GPU temps are insanely low even at 100% load :D

Im going to take the overclock off the CPU while the temp is this high out. Under cooler conditions i can get it to 4.5ghz stable. But as you can see even now I normally run it at 4.2 or lower (4.1 here in this test and was also 4.1 before)

System is:
5930k OC 4.1ghz (at stock voltage)
32g 2800ddr4
1080ti EVGA Black
2x 4k monitor, 1x 2k monitor, 1x 1600x1200 crt monitor.
 
I didn't use a stress test for temps because I don't push the computer that hard most of the time or ever really.
 

Looks like it's working now, so there isn't any reason to switch now. Yes, precision can do those things.

Its an asus sabretooth. AI Suite 3. Reinstalled it, everything is fine. Also... Thermoelectric cooling is awesome :D this is my X99 without the overclock + GPU. Crazy cool given the 32c ambient.

EDIT: Time at bottom is in minutes.