System will randomly hard freeze, no errors

Ghot said:

@Amaze

Your power supply is the "minimum" recommended for that vid card.

What? In the most demanding games the card pulls 290ish watts. That leaves me with 450 to spare.

The PSU should be okay as for both quality and wattage. Comparing it to the multimeter-tested 330W (and 550W fed) most cosuming build I've ever had with a 125W processor (105W Amaze's, so "-20") and a 140W GPU (285W Amaze's, so "+145"), it would pull 455W. nVidia recommends 600W minimum, but this is a bit tight for my taste, I'd say 700 at least. My said 550W PSU was high quality too and lasted 13 years. I also prefer the 1 rail PSU's.

(as for specs, the actual tdp of my GPU was 190W, but I think it was a bit inflated to allow more samples to be in spec; first, if it really managed to pull 190, I'd have to share 140 between the 125W processor, several drives, 2 PCI cards, the motherboard itself and the PSU losses that would round 50W at 85% efficiency; second, so I compared it, with the same mechanics as shown above, to another more ancient build with better known wattage, setting the "190W" gfx consumption as unknown variable, and it turned out 140W; there're more rigorous methods but they require measuring consumptions inside the buid, they would say how to share 330-125-140=65W among the above said parts including the absolutely mandatory 50W PSU losses, and it would likely turn out that neither the processor was reaching 125W nor the gfx 140W, but that's common: it's a "natural" fact that consumption is different per sample, but the maker must guarantee that the actual consumption of every sample will fit in its "envelope"; in general appliances consumption is lower than in the spec, to not do a "The Towering Inferno" case )

Ghot said:

I just Googled: power requirements for a 4070 Ti, and every site recommends 750W minimum.

I see. Yeah those recommendations are mainly to keep normies within a safe range.
I know my cpu uses only around 50 watts when gaming so it's just massive overkill. The only reason I bought this one was because it was on sale.

Ok I may have a real clue this time. I wasn't using my pc for several hours and I come back to find it frozen once again. But this time I notice the clock is stuck on 6 hours before.
Then it dawned on me I have a Windows addon that makes my taskbar translucent like Win7 had.
The version I was using was an old github release from 2018. I removed it and reinstalled it via the Windows Store so it should, afaik, be updated automatically or at least notify me when updates are out.

Hoping this is it :)