Does having a liquid cooling system remove all need for fans for a PC?
Not usually. No fans would mean very little air movement in the case. Many components don’t have their own fans, but they stay cool enough because air movement from the CPU and power supply fans cools them too. If you tried to remove those fans, you would run into huge problems with those other components. This includes hard drives, the chipset’s northbridge, and of course the power supply. Worse, I don’t think there’s a liquid cooling system in the world that doesn’t have at least one fan of its own. How do you think they get the heat out of the liquid? Generally, if you want to liquid cool your CPU and GPU, you get some benefits to other components because the usual air cooling solutions exhaust the CPU/GPU heat to the case while the liquid cooling generally exhausts it outside of the case. But you pay for that in reduced case air movement. If you get a power supply with a super huge fan (bigger fans can move the same amount of air while spinning slower, thus being quieter) and caref