Arctic Cooling Ati Silencer 5- rev 2

@ 2005/06/06
The design of the fan is like a turbine (but lets hope without the noise) but forces the air over the block and out of the rear. This of coarse means this cooler takes up 2 pci slots, the backing plate is included in the packaging and is just screwed into the backplate on its own without having to attach it to the cooler. Another feature that was nice to see was the fan connector cable, this is were the Arctic cooling silencer scores another plus point buy having the OEM fan plug rather than a traditional 3 pin with a four pin adaptor.

Link:
Comment from Faiakes @ 2005/06/07
Indeed. My Galaxy Glacier comes with one of those attached and i can verify it is very quiet.

Not only that but because it moves air outside the case it improves my airflow and keeps my case temp lower.

Overclocking wise, my 6800GT can reach a stable 425/1200 from the original 350/1000, just using coolbits.