The Games You Bought thread didn't seem like the place to post an update on this so I guess this one will do. So earlier tonight I finally got another one of those random restarts while playing FFVIIR, this time with both Afterburner and GPU-Z logging the GPU's power draw. And.... yeah, I've got nothing lol.
I suspected this might happen but if it is indeed a transient power spikes knocking out the system then whatever protection is shutting off the PC (the PSU's OCP is what I'm thinking) is doing so before the power actually gets to the card, or at least before the sensors can pick it up.
So I won't be able to actually catch one of these until I swap the PSUs, it seems. I searched in Afterburner's settings a little bit more and was able to tweak things to make it easier. I set it up to play an alarm if the GPU's power draw goes above a certain threshold. I've seen the card go as high as 380W (this thing is supposed to have a TGP of around 320W lmao), so I set the limit to 400W. So at least I'll be able to just play without having to constantly look at the graphs on my second monitor.
Also, I already posted this on discord already but after some fucking around with reinstalling iCue and Armory Crate and going back 2 versions with Nvidia's drivers, I was finally able to sync my RTX 3080 with the rest of my RGBs!
I was kinda bummed out when it turned out not to work (my Asus motherboard worked so I expected the GPU also would) but I looked online and it turns out it was a recent nvidia driver that broke the plugin for everyone. It was just bad timing on my part lol. Now I just need to get more fans for my case... For the extra airflow, I swear!