I installed this new version of Px1, and then updated my drivers from 456.71 to 457.09
 
custom fan curves seem to be functioning normally
 
thank you for the fix!

Went ahead and grabbed this one for my way cool 3090 FTW3 Ultra that will be arriving Monday.
I will wait and install it when I do the new card and drivers.

Yup Works for me as well with the nVidia 457.09 Drivers

Fan control is good to go now on this end with 457.09 

my computer stopped randomly restarting itself once i switched from the previous version to this current version.

Every time I try to run a Time Spy benchmark with PX1 open in the background the test fails when it starts Graphics Test 1. 3080 FTW Ultra, i9 10850K, 32Gb DDR4 3600. Latest PX1 and latest Nvidia drivers.

trickycoolj
Every time I try to run a Time Spy benchmark with PX1 open in the background the test fails when it starts Graphics Test 1. 3080 FTW Ultra, i9 10850K, 32Gb DDR4 3600. Latest PX1 and latest Nvidia drivers.

You cannot have Precision open when running TimeSpy, if you have OSD turned on, it will crash when around 3/4s of the way through the loading bar on the first test.  The benchmark is the problem, it will crash if Precision is open. Set your OC, set your fans, and exit Precision.  This is a known issue with the benchmark itself, and isn't something NVidia/eVGA can solve.
 
This is actually a good idea to do in general for all benchmarks, as Precision can reduce your score when open in the background.

Does not work on W7?

Just got my 3090 FTW3 Ultra installed.
Installed this version of Precision.
Dumb question - where did the LED control setting go?
Would like to change mine to static blue instead of this rainbow.
It used to be in the third tab, all that is there now is Power.
Also it is only showing me GPU temp?
 
Edit: Disregard, I did it over again and realized I had not installed the LED sync. This time got a bios flash too.
Should be good to go I think.

Nevermind I'm an idiot. I downloaded the wrong version of X1 twice. 

Looks like todays driver update (457.30) broke fan speed reporting again even on the new version. Have a 3090 FTW3 Ultra

Poor guy(s) who just fixed it gonna be mad.

*Edit*

On the latest drivers (457.30) I was also experiencing frequent reproducible crashes. The Superposition menu, when in a drop down (switching to custom and then the resolution setting specifically) would crash the drivers every time.

I did a simple driver rollback, and that fixed the crashing, but Precision is still not reporting on 2 fans, even after reinstalling Precision.

Going to try DDU and clean driver install on the latest drivers, and then again on the previous .09 if that doesn't resolve things.

*Edit 2*

I think my card is one of the unlucky defective ones. After running DDU and doing a new driver install (and restarting), running games/benchmarks is getting me a ton of artifacts. Going to contact support.

So I used Precision X to update the card, but I want to keep using Afterburner as I prefer it's monitoring. The fan curves still aren't working with Afterburner even after updating the card with Precision X, any suggestions? 

I can’t get my led settings to stay. I want temp reflected by led color

It doesn’t stay thru a reboot.

ab10ff
So I used Precision X to update the card, but I want to keep using Afterburner as I prefer it's monitoring. The fan curves still aren't working with Afterburner even after updating the card with Precision X, any suggestions? 

It's a software application fix, so AB would need to be updated as well. They might have a new beta version out that you can try? I'm running 4.6.3 beta 3, but it still only shows 2 fans (I don't think AB has ever shown more than 2 fans for any card).
 

Gunridden
For the life of me for some reason I cannot get OSD to work. 

 
Make sure you have the OSD in the lower right corner selected (a blue bar). You'll also need to have items under HWM selected to show on OSD, each reading that you want.

 
Good. Thanks.