I saw a guy with a closed loop testing recommended fluids and he still had to take it apart and clean the gunk out of it after a year. Bad as having to get your radiator flushed on your car, for me ,no thank you , I will stick to air.
"I saw a guy"
Fair enough - there are plenty of these videos and images all over the internet. I've also seen an excessive number of photos of people who do not clean their air coolers out and there is an incredible amount of dust buildup. Liquid cooling isn't a build it and forget it forever solution...PC building in general isn't, if I'm being completely honest. Most people with 'gunk' in their liquid cooling systems are using coolants and additives 'to make it look cool, man!' but in reality, that is exactly what causes the buildup - coolants that break down. Most hardcore watercooling guys only use distilled water and some form of anti-microbial solution to prevent growth. This can be in the form of drops as an additive, or clear additive mixed with distilled water.
And by the way - you really should have your car radiator cleaned and flushed on regular occasion as part of regular maintenance, which consequently, is what this would be for PC watercooling. Same thing with your transmission fluid, power steering fluid and transfer case fluid if your vehicle is AWD or 4WD or otherwise requires it. You make this sound like you should never do maintenance on a PC or a car...rather confusing to the casual reader happening across this thread.
So im currently using my stock heatsink that came with my ryzen 5 2600x, and im looking to upgrade to either a closed loop cooling system or a nice heatsink, but nothing too crazy. I guess my question is how reliable is a closed loop system, like do they start leaking after a couple of years or are they generally sturdy and reliable. And a possible follow up question would be is how cooling is compared between the two, does a nice heatsink offer comparable cooling or does closed loop just blow it out of the water, no pun intended. Thanks in advance for any helpful information!
This exact topic has been covered thousands upon thousands of times on nearly every tech forum (including this one, I can attest), so a bit of Google searching can lead you to many debates on the subject.
I've watercooled for nearly 17 years and will continue to do so. I enjoy the hobby and it allows for a great deal of customization and thermal headroom. Please note that watercooling and AIO/closed loop coolers do not perform the same even though they follow the same principles of liquid cooling inside a PC. Please do not get the assumption that because it says 'liquid cooling' on the box it is superior to air cooling, or that a cheap $60 liquid cooler works just as well as a $1000 custom cooling loop.
Budget air coolers and high-end air cooling are often not just relative to cooler size or price. I've tested several moderately priced air coolers intended to be 'high end' and they do not perform as well as smaller air coolers.