17 R3, 1080 Ti Founders, AGA acting strangely?

Had zero issues until yesterday. This thing saved my 17 R3 from ending up in a dumpster, so I'd love to squeeze some more time out of the old girl. AGA randomly shuts off. Sometimes it'll do the boot-loop issue. Told me card wasn't recognized once. Sometimes it will run for hours, other times only a few minutes. No real rhyme or reason to the multitude of unpluggings/reboots making it work again. Running the most current drivers/bios for AGA and laptop. Working with a 1080 Ti Founders. AGA purchased last October, so less than a year. Been monitoring temps, not an issue either. Couldn't find anything in the forums here or on Reddit with this issue. I'll take whatever I can find at this point. Lemme know if there's any other numbers/specs y'all need to sort this, it's beyond me.