Asus EN7800GT Top Silent
 

Rather than going down the Zalman route - a design that a lot of other
manufacturers have copied with varying results - and run the heatpipes
from the GPU to the back of the graphics card, Asus has a much more
interesting solution. Although it looks as if the heatpipe is located
just above the card at first, this is not the case. What Asus has done is
to create a solution that allows you move the heatpipe 45 degrees.