seon123

Yes, a decent 400W PSU should be plenty to power a 200W system.

No, it's 12V. It's often even called EPS 12V

It's a protection, so there can be a difference if something goes wrong, just like with any other protection. Without multi rail OCP, you could e.g. draw 850W through a single SATA connector and start a fire, if an SSD/HDD fails

That PSU claims 180W on the 12V rail (and that's likely "optimistic"). The RX 570 is a 150W card. No wonder you're getting shutdowns.

The price won't matter, as it's still a low end PSU. Looking on the website, it's £160, which is not even that much cheaper than decent 1000W PSUs.

But... it does have Kailh hot swap sockets

Who the crap is this thing for? People that just buy anything that System76 sells? Mainstream people would likely be turned off by the lack of numpad, strange layout (i.e. not full size or TKL), lack of macro buttons and dedicated media keys, non-Cherry switches, and the high price. People that are into keyboards would be turned off by... the everything. Just some things that came to mind immediately: North facing switches means that they will interfere with Cherry profile keycaps (tbf, this is not an issue with Box switches, which are the included option

Yes. There is a section on it in Aris' newer reviews. https://www.tomshardware.com/reviews/corsair-rm750x-2021-power-supply-review/2

If they actually wanted to start a fire, a better recommendation would have been a lighter.

The PSU has a 5 year warranty, and it came out less than 5 years ago. RMA it. That's not due to the PSU. You should try troubleshooting elsewhere. Is that how you buy CPUs...? Do you just search for opinions on Intel/AMD in general, and buy their products based on that? When buying a CPU, do you worry about the 1 star reviews on Amazon? Or do you look at actual professional reviews of the product in question, and base your purchase on that? Why would you do it differently for a PSU?

Neither of them is really good, and I wouldn't use either with a system that actually needs a 750W PSU. Where are you buying from, and what are the prices for those?

It's a lineup... In the current lineup, it goes from the System Power 9, which is very basic and should only really be used with low end systems, to the Dark Power Pro 12, which is one of the best PSUs on the market. Everything else is between those

Yes, both use the same Corsair type 4 cables. https://www.corsair.com/ww/en/psu-cable-compatibility

Which of EVGA's 11 different 600W PSUs do you have?

There are no results for the brand "Doss" on the 80+ website. The listing does not contain any model number. It claims 456W on the 12V rail, indicating it doesn't have DC-DC, yet it claims LLC + DC-DC. So basically, don't trust anything about that listing, and even the best case scenario for that PSU is that it's very sketchy.