I could finally fix my AM4 AIO, a Phanteks 240, standoff issue by ordering a new backplate.
I have done some tests by running Satisfactory in 4k for more than 1 hour.
The GPU, a Gigabyte RTX 3080 10G OC, slowly rises to 83 degrees until my fan curve reaches the right speed to maintain its temp.
The system is then very, very loud despites my custom fan curve for the GPU.
It seems like my GPU hot air cannot be extracted from the case fast enough.
Is it because I connected the AIO fan controller to the CPU fan controller? My CPU temps are low because it's a 65W 3700X, maybe the exhaust fans of the AIO do not spin high enough to exhaust the heat of the GPU.
Shall I connect the AIO fans to the chassis fan controller to increase their speed? My system temps reach 105 degrees.
Edit: I could find an app to control my CPU fan speed. By boosting the AIO fans to 63%, I can keep my GPU temp at 81 degrees with its fans at 60% and the total loudness is then almost acceptable. I know the design is like the A4-SFX, not thought for low noise levels, but I expected less noise to be honest. Maybe the system will be more comfortable with a GPU that consumes less than 300w. Mine pumps 355w.
I will try to tweak the CPU fan speed curve in the bios to maintain 60% even if the CPU is below 60 degrees.
Edit: I swapped the 2 Phanteks 120mm fans with Noctuas NH-12x25 and tuned the curve to be roughly running at 60% despites the low CPU temps. I can then keep my GPU fans to around 57% and the GPU temps stay stable at 79 degrees with very acceptable total fan noise.
I wonder if upgrading my 3700x with a 12700 non k would make the PC louder or if the current fan speed would just absorb the extra heat with no problem.
