Quote Originally Posted by ZaborgEST View Post
Thanks.

I'm still a bit confused, how only FFXIV can affect this, like I can play any other game with ultra-hyper graphics and nothing ever crashes. It makes me feel like this is more like a software issue. Also, today the game crashed quite fast even with the underclocking, I wish I could somehow determine that it is 100% the PSUs issue and nothing else, so I could try replacing it. I could totally understand if other games also crashed, then I wouldn't have any questions on this regard.
games load the hardware in different games, FFXIV tends to be more cpu bound in group content which will result in more variation to the GPU load(65-100% for a GTX 1080@1440p60 on a first gen i7), this means the asic voltage is constantly variating in a way it wouldn't if the chip was only moving between 90 and 100% load.

Shadow of the Tomb Raider for example on a (pair of?) 3090's was shutting down a 1000w PSU due to this variation in device draw despite it not occuring with both cards loaded with furmark

the new world crashes on 3090's was due to this same variation in power draw, except the variance was exceeding the capabilities of the chosen buck converter leading to overshoot and thermal runaway(melting).