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Ok , good to know ...It doesn't need to vent out. The back of the case is full of holes allowing air flow out. It's a positive pressure case (which helps to also reduce dust build-up), so all the airflow is inwards. The fans on the bottom direct air straight at your GPU, and the front fans bring in lots of air.
I know i was looking 9900X but i dont know sure if will working on my mobo .... some say not working some say working ...The Ryzen 7700 is quite a good gaming CPU.
For what reason do you want to upgrade?
If you want more multithreaded perf, might be better to just get an AM5 CPU with more cores.
My problem its resolvet with changed motherboard with goos VRM and AIO 280 from BeQuiet, now i have in idle 38 temps....this tbh
i resolved problem .... with X870E Nova form Asrock has 50CI don't understand why you think the vrm isn't good when the following shows it's very good ,
From review
For the stress test we're using the Ryzen 9 7950X and Cinebench R23 which was looped for an hour
And unlikely you'll be putting the same amount of stress that's worst case in this test even if you do it passes with flying colours