Zalman Zmachine GV1000 +HD3850/3870 Looks that i got lucky , and got today on eBAY (before few minutes) , one second hand GV1000 . Even if my system has zero issues about heat , i truly like to see how better this cooler can do the job . Yes, reviews tell the truth , and about 7-10C drop on core , are expected to happen . But what i care most , is not the drop , its the fan its self . Did any one try to use the cards power plug ? Zalman uses their own rpm - voltage controller , but i am thinking to cut wires , and connect the fan on the VGA, as the original fan was connected. I am looking to find the DC motor similarity s , so to be 100% confident , that this change will not cause damage . Does any one know the DC motor specs of the HD3850 ? Any tips are welcome . .