Hey LeDoyen,
First things first, thanks for the effort. However, nah mate, PSU was bought in 2014-15. My PC was/is working 24/7, and I'm aware what can happen to more "sensitive" components if you constantly turn off your PC. Although in last two years, I was three months away couple of times, and last time I wasn't in the country, it was plugged off from the outlet, well everything was. It could have happened before, but "it" decided this last time. It was one of the "big" and "smaller" capacitors that gave up on me. As a service dude said, they regulate the high voltage input. So it was basically working without cooling for the past 8 years...I guess it was about to happen.
Now when it comes to positioning, even though I overpaid for it (Carbide Air 540 doesn't even have glass and really low quality plastic), again, thanks Corsair 😁, I love this case. (Had Antec P series, I know what quality feels like) PSU goes in the second, right-side chamber and doesn't have any fans there.
I guess I could drill holes on the side, "mod" a noctua in and connect it to 4-pin molex or Kraken 3-pins that I have. Although, I'm afraid there's not enough space between side grill and PSU for 120mm fan. The main problem is that PSU leans on motherboard black-plate and that's where huge passive radiator (inside the PSU obviously) is located. So PSU doesn't have any air flow and a fan that isn't spinning.
If modding PSU is possible, I would love to hear someone savvy from Corsair, this is "their" community after all, it would be the best possible solution. Looks like new as well, since the fan never turned, there's not a single speck of dust.
Cheers all!