The Gigabyte mobo thing is a weird one for me, seems mine is one of the few that isn't on the list of those affected, luckily.
Lets play a game, AIO vs custom loops without watching that video:
Against AIO:
- Mostly weaker pumps
- Aluminium rads
- High FPI rads that are louder and need higher speed fans to work well
- Thinner rads
- Disposable, will need replacing fully in a few years
- Need two separate units for GPU and CPU.
For AIO:
- Zero maintenance
- Easy.
- Cheap
- 280mm + models able to handle high TDP chips better than big air cooling.
- Very good for mini ITX builds as single 120mm rads will cool better than very small down draft air coolers
Against Custom loop:
- Expensive, universal blocks for GPU's dont cover VRMs, and custom blocks not always available for every model of GPU and need updating every upgrade
- High maintenance, will need draining and filling every year or two
- Needs a bigger case to work a lot better than AIO or air.
- Complicated to set up properly, need to calculate flow restrictions and TDPs of components
- Not really worth it for the cost to performance gained, especially as time goes on.
For custom loop:
- Can make quieter, low FPI rads and slower fans or more rads in general.
- Copper radiators more efficient at same size as aluminium.
- More effective cooling overall
- Can use higher quality pumps and cooling blocks
- Aesthetics, well installed hard tubing and coloured coolant look pretty sweet.
- Fun hobby if you like that kind of thing.