those cards vent very little out of that back exhasut. Most of the air is forced through the 2 slits on top for each core.
Huh? I crank the fan on my 5970 to 100%, and you can FEEL the air blow out the back. I normally run them at 40%, however, but you can still feel the air vent out the back...
The fan pulls in air through the center of the squirrel cage and it's ducted through the closed vapour chamber fins. Some might leak out of the circular ducting, but that will be the cool air that was just drawn in. The openings on the back of the card are just for show, they're not actually inputs or exhausts.
Have you ever used a 5970?
You are about to get a lesson from the many miners on here that actually have......the vents are ANYTHING but show.....
Wait, are you talking about the vents closest to the fan? Or the metal grate by the DVI ports?
