Try reinstalling X1. I just did a clean windows install and now my RGB is attached to all of my OC/Fan curve profiles. To be clear, you’re seeing the controllable RGB flashing? Is that what you have set in the software under LED? If not, did you toggle link? Or are you talking about PSU cable LEDs?

Side note. As much as it might suck, I set up 3 profiles so it won’t take long to establish anything again after each patch. Thus far, X1 is a lot like a windows 95 app that I have to tinker with but then step away slowly when it decides to start working.

Ok. PSU cables are usually a red flag so I’d email or call EVGA. Since it happened right after a bios update, I’d try a few things. 1. unplug everything and power down CPU. Heck, reset CMOS while you’re starting clean. Wait a few minutes. Not sure what you’re running but check for the lights during post with just the power cord to your rig. Then VGA aka DisplayPort or HDMI. Then see if the PSU has a parasite. I just had this for some reason in bios from hubs built into my monitor and keyboard. Then plug stuff in one at a time. That’s assuming you don’t boot straight to your red lights.

2. See if you can source the last bios. I know tech power up is a hodgepodge of bios files but it’s probably safer to see if EVGA will send you that.

The RGB is not indicative of anything outside of the ever-present coolness of bright computer parts.

Correction: if the cool guy RGB is flashing that’s probably a fail safe so we actually notice the GPU/PSU cable lights. Most MOBOs are covered in lights but there’s like 6 tiny LEDs that should actually attract our attention. That makes a lot of sense.

In my case, my MOBO decided to disable some of my USBs when too many devices were drawing power. Perhaps parasite is the unofficial term but parasitic drain is the term I use for car wiring.

Can you open GPU-Z and see any irregularity? What’s your set up and do you have any extension cables? I know strimers are decent but other PSU extensions can be sketchy.

I know I’m not answering your original question of a rollback bios but I’m genuinely curious. I have the same card and had the same update yesterday. No noticeable change.

   Here are my specifications for reference.
CPU: AMD Ryzen 9 3900X
MOBO: MSI Meg X570 Ace
RAM: Corsair Vengeance Pro RGB 32GB (16X2)
PSU: EVGA 850W Supernova GA
GPU: EVGA RTX 3080 XC3 Ultra
 
In terms of GPU Z I'm not really sure what to look for but I can link some screen shots
 
I only use the default cables from the psu.
 

I do not have boost lock enabled in X1 nor have set it on recently. I set everything to max performance in windows for the power configuration as well as for the nvidia control panel too.

Thanks for the feedback and tips my man. I really appreciate it. Hopefully I can work this out. I already started a support ticket and we'll see how it goes. I'll keep this thread updated just in case.