exactly where would the heat be going from the block?
Isn't the point of liquid cooling to have water flowing through the block to keep the block cool?
Are you proposing installing heat fins on a waterblock? how would that work since in theory the waterblock shouldn't get hot with proper liquid cooling flowing and pumping.
water cooling is LOUD and makes a higher pitch "whine noise"..
I want to avoid this when the computer isn't doing intensive stuff..
that's why I specified that there needs to be adequate "metal contact" around the liquid cavity in the center... because water doesn't conduct was well as metal to metal (obviously)..
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Get a good, silent pump and mount it with rubber. Use bigger, slower fans on the radiators.
There's no such thing as a silent pump..
you're probably used to a higher noise floor..
my room is ~ 26-30db with no computers running..
With my current air setup it's ~28-35...
so even if i have the BEST most quiet water pump EVER, i will hear the tzzztzzztzzzz squegee noise because the environment is so quiet.. and any/all high frequency noise will stand out..
The reason I SAY water pumps are loud has to do with noise floor, not the fact that they're Literally High on DB