Hello.
 Now i have played with 2pac sticks a while.3 still working and 3 are dead.
I have attached simple water blocks to sticks and connected to pc-s cooling.
they are running 225 Mhz and core 1,47 V and I get 24,67Gh/s.
Temp holding between 35 and 45 degrees Celsius,depending if i use PC for other purposes.