I also suggest those doing this use Liquid Pro.
http://www.coollaboratory.com/en/products/liquid-pro/ This stuff is amazing, and no other product has shown results as high at transferring heat. I ordered 50 tubes, but guys, PLEASE pay attention, this shit is sensitive. Its transference is unheard of, but you must take your time. 1 simple drop goes a mile.
Check this thread to see results for another product that failed and the community is taking it into their own hands.
https://bitcointalk.org/index.php?topic=641998.20 After using it several times, I truly believe a much more cost effective fan could be used. With that said, I still took the recommended cooler, and will use liquid pro, lets see some oc baby.
+1 , I have the ultra and it dropped about 8ºC on my cpu and 15ºC on my graphics card.
However as it has been said, it is gallium based and gallium destroys aluminium :
https://www.youtube.com/watch?v=JHHI2Lk79cYAlso it is expensive and the improvement in cooling depends a lot on the watts/cm^2 of the die, I don't know if it is really worth it for the minion so I will be using artic silver.
BTW my watercooling tests are going fine, a relativelly complex block that could be used as a phase change evaporator gave me 28ºC with 100W (a p4 northwood) with 22ºC of ambient temps. However I can't really mass make those on time or budget so I tried a really simple high flow design and I got 38ºC load temps wich even if it is not stellar performance it is good enough so I am making 100 of them (for me and a friend). I also got a monster 155W 10000L/h pump.
