Water cooling is an improvement.  Would it fit in a 3650?  Not 100% sure.  Speedstep doesn't think a water cooler would work.  I couldn't find a YouTube video showing that it does.  Yet, there's the thread I linked early on in this thread.  There's the possibility it doesn't work without other modifications. I noticed the 3650 and other models with the same chassis are notorious for having cooling problems.
Hi everyone, Due to Precision 3650 Tower small case too hot during cpu full loading, Can I change original case to Micro-ATX Case with other cooler?(I had a Lian Li PC-A04) Maybe change UPS if oem 550W USP not be appled to mATX case? P.S. i9-11900K; 32GB ram; 1TB SSD; 4TB HDD; Radeon Pro W5500    
Precision 3650 change case?