Quote Originally Posted by gabe View Post
Hi All:

The heatsinks for nVidida GeForce GTX470 and 480 are now in production; ETA is ~3 weeks.

They will be compatible with the MCW60 and the MCW80 waterblocks.

The sinks cover most of the PCB in both models.

A notable innovation with this generation is the addition of mounting holes for 80mm fans (in both models).

The following test results show such setups. We tested with SilenX 80x15mm fans (11dbA model for the 470, and 14 dbA model for the 480). These fans will be offered in option.

With these 15mm high fans, the setup is SLI compatible, and there is plenty of room for the upper card fan to breathe with a 10mm spacing between the fan and the lower card.

Here are the test results. Note that these tests are performed under maximum stable overclock. In other words, the cards have also been tested at the posted frequencies and voltages under other benchmarks, such as 3D Marks Vantage, and Unigine.

The GTX470 was overvolted to its maximum, and performed extremely well with a stable max GPU frequency slighthly higher than that of the 480. Memory however could not pushed beyond 850Mhz.



Not surprisingly, the GTX480 test results are consistent with those published earlier here. For this test, we also measured one mosfet with a Type T thermocouple epoxied to the side of the component. We found the temp to reach 74C after one hour, evidencing that the heatsink is doing its job very nicely given the extreme voltage, and stress of this particular test.

You stated b4 that cooling the VRM's was not important, now there are fans added to cool the VRM's....
So are they required or are they just an option for thoes who want maximum cooling and peice of mind, and how loud are the fans, isnt this kind of defeating the purpose of watercooling by adding fans to the waterblock???