I am thinking about cooling solutions and am debating full watercooling. I haven't watercooled before though. Now what would the advantage be of building a loop from the ground up with the apogee drive ii vs expanding the H220. They both use the same block/pump combo?
If I was starting w/c myself now I'd get an H220. H220 is cheaper to start with, comes with rad and fans and will work out of the box. The AD2 is a bit more powerful - at 40% PWM it's enough flow for a small CPU+GPU loop - and it has a heatsink for better cooling of the pump itself.
Only advantage of the AD2 in the M1 is that the ports are a bit higher up away from the motherboard itself, which may help with some CPU socket positions. On the other hand, the H220 ports swivel and are a bit smaller overall.
Which motherboard do you have?