I have a x1900xt with a Zalman v900cu and it seems to always overheat after a certain period of time under load. Both the GPU and GPU environment temperatures always seem to be rising when under load so I think that the air around the graphics card simply isn't moving. This would make sense as my case's air flow doesn't really cover that area and since the GPU fan blows downwards the air wouldn't really go anywhere on its own. I have two ideas, first was to try putting a fan in the graphics card duct that my case has (Antec P180), but it looks like the fan would be a bit high to really help cool the graphics card that much. The other idea was to get something like this http://www.overclockers.co.uk/acatalog/Online_Catalogue_Akasa_396.html#aSY_2d000_2dGE (bottom one), but I'm not sure how well that would work as the fans would be quite out of line. If anyone has any ideas or input on these ideas, they'd be appreciated, thanks.