Internal shots of Danger Den 480 block

Quote:

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Originally Posted by gabe

No; there is a small amount of liquid inside of the heat pipe, but not that from the liquid cooling system. Here is a simplified refresher course on heat pipes: a heat pipe is a sealed tube that is filled with a small amount of fluid under very low pressure. The low pressure allows the fluid to boil at low temperature. Thus, at the hot spot the fluid boils and enters into a vapor state. The vapor travels thru the pipe, carrying heat with it, and it condensates at the cold spot where it releases the latent heat; the fluid then flows by capillarity back to the hot spot where the cycle begins again. Heat pipes are extraordinarily efficient at conducting heat from one spot to another; by cooling them with a powerful L/C system, you can drop their thermal resistance to allow them to conduct very large volumes of thermal energy.

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From the sounds of the tests being run with your block it seems to work well.

So the heat from the VRM goes like this;

Swiftech:
VRM -> TIM/pad -> aluminium plate -> TIM -> heatpipe -> TIM -> edge of main copper plate -----> center of main copper plate -> water

DangerDen:
VRM -> TIM/pad -> main copper block -> water

Correct me if i'm wrong.


I guess the GTX 480's VRM don't need that much active cooling in the first place seeing they are not digital.