In reading this forum I've seen a lot of threads on heatsinks and heat dissipation. The only options I've seen for increasing dissipation are adding fans or water cooling. I also noticed some posts regarding the use of fans at a greatly reduced rpm just to increase the air flow without the noise. Water cooling has its own obvious problems.
Back in the original Macintosh days overheating was a problem since the Mac didn't have any fans and everything was in one case. The cheap and easy solution at the time was to basically stick a funnel over the vent holes at the top to increase the velocity of the heated air which in turn would increase the air flow inside the case.
Is there a reason an approach like this couldn't be used to increase the air flow over the fins of a heatsink too?
Back in the original Macintosh days overheating was a problem since the Mac didn't have any fans and everything was in one case. The cheap and easy solution at the time was to basically stick a funnel over the vent holes at the top to increase the velocity of the heated air which in turn would increase the air flow inside the case.
Is there a reason an approach like this couldn't be used to increase the air flow over the fins of a heatsink too?