Thanks,🙏A liquid cooler you buy off the shelf is an AIO (all-in-one), self-contained.
Nothing more you need to do re: maintenance than you would do with an air cooler - semi regular cleaning of dust etc.
You don't touch the fluid etc.
Not all AIO's are created equal however, and many in the 'budget' space are rivalled/bettered by similarly priced air coolers without the additional point(s) of failure.
A custom loop is exactly what it sounds like - custom. You design the loop, choose the blocks & radiators etc. Much more maintenance required going this route.
Thanks, so stock liquid cooler I don’t need to change liquid? If this is the case is there no real way to see if it’s turning bad?A custom loop is when you buy a cpu block, radiator, pump, fittings and tubing separately and make your own cooling system.
Aio coolers like a Corsair h100 or most of what you see for sale don't require anything maintenance wise.
Downside of all of them is you add the possibility of a pump failure, leak, or air causing the cooling to stop. None of those are visible
If the radiator isn't bigger than something than a similar sized then it won't outperform it. The water is just a means of moving the heat to a radiator. Air coolers have the radiator mounted on the CPU directly