BitCoin newcomer with mining questions...

[Neereus]

Yes, liquid cooling would be overboard. lol
Not my expertise, but I was thinking more along the lines of better heat sink, better fan(s).
However, in TomTomBC's case,  I would just say stick with 50% since it's more for fun/research.

[theGECK]

Ok, that's what I'm assuming. I've just heard many people recently talking about proper cooling for CPUs.