Question RTX 3080 ti temp hits

I7-14700KF+Arctic LF III 420mm / EVGA XC3 RTX 3080 ti + Alphacool DC-LT 3600 pump and 250ml reservoir with corsair XG3 and Corsair420mm radiator custom loop. I have a PU-SC1000 at 4500rpm for the new pump and reuse to dc-lt reservoir housing but plugging the motor hole with a plug so it'll just be a reservoir. At 78F ambient i get 49-50C full load with OCCT non-license software and idle at 27C after 1 hour of stress test with the current system setup. Hopefully with the PU-SC1000 i get even better specs because the dc-lt has 2.0L/m and the PU-SC1000 has 20L/m so a great performance increase is expected.
 
I want to cut-out 90mm sections off the old XC3 backplate to mount 2 90mm fans for back cooling because i like seeing a backplate so i'll add an active cooling one with the custom fan mod.
 
I want to cut-out 90mm sections off the old XC3 backplate to mount 2 90mm fans for back cooling because i like seeing a backplate so i'll add an active cooling one with the custom fan mod.

That might make a difference to idle temps. Get rid of some of the passive heat soak at least on the non-contacted areas.

I think my high gets to 55C, maybe 60 in the summer, dual 280mm with the CPU in the loop. I don't pay too much attention. So long as it is generally cooler than it was in the past.

The numbers I entered into partpicker show 24C idle and 55C under load, but I know that was a quick test, not really looking for the true min and max when I check those numbers. Those are just my sanity checks after I do a rebuild/upgrade/drain and refill.