FYI 1.2.8 still has this problem on a 3080 FTE3 Ultra, left it on temperature for ~4 hours, purely desktop usage, no gaming so not really under load, reverted to rainbow.
 
I was not aware of the beta build 1.2.6.3 so will give that a try.

The beta build (1.2.6.3) seems to be working as people have described, initially for a few seconds it's rainbow on power on and then it switches to whatever scheme it should be quickly and stays.
 
Given BizSAR's comment above I will likely try 1.2.8 again to see if it sorts itself but for now I'll test this 1.2.6.3 build a little longer.

ocana

BizSAR
Does anyone have this issue with cards older than the current 3xxx GPUs? No issues of the sort here on a 2080TI FTW3 Ultra.

I do. My RTX 2080 XC Ultra has completely lost the ability do even turn on or accept any orders at all. Can't even light it up anymore, no way, no how. Any version of precision, any version of LED Sync... Third Party RGB Software on top of it, or not. I've tried it all. Even tried flashing the MCU driver with FlashTool as per indicated in a 2018 EVGA Forum solution offered by EVGA Staff for this specific problem, it worked for people then as stated by multiple people in that thread, but it says "This device is not supported!" (and I got the correct one, still no game).

I'm so desperate I'm considering mutilating my card and trying to adapt the RGB connector directly to the motherboard, although I found no one mentioning this solution anywhere (and at my knowledge level I could only go through with this with a clear tutorial, to scared to explore and take risks with my only workhorse gpu)

I'd suggest submitting a support ticket to EVGA against your product directly here.

So...the beta build (1.2.6.3) worked fine, today Precision informed me there was a 1.2.9 update so I've updated again, few hours now and seems to be working, fingers crossed.
 

Earlier in this thread I said the issue is fixed on my machine, I was mistaken.
It's better now no doubt, with the newer versions of PX1 when the problem happens it corrects itself most of the time, but it keeps coming back.
 
Latest v1.3.3.0 of PX1 (also happened in previous versions, including the beta) 
3080 FTW3 Ultra 10G-P5-3897-KR
VBIOS 94.02.42.80.31
Firmware 2.01.22
Driver 512.59
Windows 10 21H1
 
When I was using an EVGA z170 stinger mobo these issues never happened, using this same exact GPU.
I have an ASRock x570 steel legend mobo now; the issue has happened ever since I started using this mobo.



What I'm seeing:
1. PX1 controlled RGB LEDs randomly revert to rainbow wave, even though that does not match PX1 settings.
 and/or...
2. The 3rd fan goes "off-profile" and runs at a high speed while the other two are not, all three should use the same fan curve.
3. There's a >95% chance it automatically resets back to saved settings. Sometimes in a flash, other times after a few minutes.        <--- this seems to be what PX1 beta v1.2.6.3 added, the behavior appears the same in 1.3.3.0
 
- This cycle happens sometimes once a day, other times 10+ times a day. Seems to happen more when I don't interact with the system.
- Sometimes it won't reset itself successfully and will stay on rainbow wave for several minutes.
- I've also seen different LED "zones" get reverted to rainbow while others are still using their saved setting. EG the bar on the GPU goes to rainbow but the ARGB strip stays its set color and vice versa. 
- It happens with PX1 in the foreground or minimized.
 
It's annoying that it keeps going back to rainbow wave, even if it does fix itself within a few seconds usually.


As well, on a cold boot it reverts to rainbow wave, the saved RGB settings aren't applied until PX1 is started in windows.
On a warm boot, (power cord not removed from the system) the saved settings are used before windows starts.
 

I think it's got to be motherboard related. Is there any information about what causes the problem, that I could take to my motherboard manufacturer's support department?

Or maybe some way could be created to allow the user to change the RGB hardware default from rainbow wave to something else, so when the problem happens it's less annoying?

Randomly the LEDs change to Rainbow effect. When i open the Precision Software it turns back to my settings. Its like a Service which turns itself to deep sleep or somekind. I dont know. I dont find any service what controls the RGB - the only thing what runs in background is the Precision Software.. Its so frustrating with a card which was so expensive.