Keep in mind of the following:
Your hardware can only cool as low as the ambient air temperature unless you use an active cooling system. Something like phase change or Peltier cooling. So you're not going to see temperatures lower than 30C or at worst as you mentioned, 37C.
Water cooling doesn't cool your hardware any better than air cooling so to speak. It just takes longer for the temperatures to reach their stability point. Meaning if you work the computer long enough, it'll eventually get to say 75C. On the flipside, once you're done with the task, it'll take longer get back to an idle temperature.
If you're not thermal throttling, I'd say you're fine. And if you are thermal throttling, start with a better air cooler first.
You can use HWMonitor to check the system temperatures while you do your things. Also the CPU and GPU reaching 70C is fine. It's when either starts creeping past 85C that it becomes a problem. Or either starts to thermal throttle.
jose-eduardo reacted to Mira Yurizaki in A liquid cooling system for Cuba hot temperatures
