From H1 to Terra.
I feel you on the temps, they were terrible even with the panel risers I picked up.
Temps are good, I have not paid a ton of attention to CPU temp, but I don’t even notice the fan spool up (thanks Noctua). As for GPU, I’m not sure about undervolting on AMD but I’d recommend it. Currently getting peaks of 74° under full load with my undervolt profile. Fan noise isn’t bad imo, ymmv, my fans ramp up to 75% and I don’t notice them over the game sound.
I do not have the exhaust fan in. I have an sfx-l psu so my connectors are too far down to mount it, sadly.
Edit: If you were able to add the aux fan, general consensus seems to point as exhaust being better.
I made this switch not too long ago.
I went with the L12S and haven’t had any issues on my 5900x.
Heard good stuff on the other website about this though.
