Thermal conducivity is not the only property of silver that differs to copper.
9% is measureable, but definaltly not worth the cost. I would much prefer a copper block, with maybe electroless silver plating for looks
Whats your thoughts on the specific heat of silver, its roughtly half. Im thinking this is good, because it will heat up quicker, bigger delta-t between water and so transfer heat to water better. Also I think it could have the disadvantage of giving higher waterblock temps, and so the cpu would be hotter, this would make differences between copper and silver a lot closer, and less measureable.
unregistered I think it was you possibly that said a while ago, that specific heat is irrelivant for the base material, as when it hits equilibruim, it makes no difference? anyway who said it doesnt matter, would it be fact?
Reson Im asking this is I got some silver for free, and made a block, it didnt turn out very well, and Im thinking of starting again with copper (as I have no more silver, I wil not be buying any, and so could not use more).