Bolt-on RAM/VRM sinks for 4850/4870?

[iandh]

nice those look good i might order some. hope they perform well.

Those don't look nearly big enough for the vrms but i'm not gonna count them out until I see results.

I've been testing them for several weeks on two different 4870's. So far the highest VRM temp I've measured is 90C, which is not abnormal. I've seen temps in the 80-90 range on 8800GT's even.

edit: FYI one card is using an Accelero S1 with a Yate SL running full speed (haha sleeve bearing already starting to go out , and the other card was running with an MCW60 and two front mounted stock Lian Li fans running undervolted at 1100RPM). Bottom line is that in both cases the card had good airflow.

That said, good case airflow is a must with this card, regardless of what cooling you use on it. The sinks could be gigantic and the VRM's would still overheat in a case with poor airflow. Even high surface area forged copper sinks like the swiftech/enzo's are no more effective than a square block of copper when you are not moving air through the pins. They actually will radiate into each other, reducing the effective surface area. That is why the fins are so widely spaced on my sinks... too high of a fin density and you can actually lose effective surface area.

$40? Srsly.

That's what the last few models have sold for as well. It's just the cost of having them made entirely in the USA, entirely in California for that matter, and the cost of business here is higher than other states. The benefit though is that I am able to be directly involved in production. The shop I have these made at actually is making these under their normal hourly rate... also, although they sell fairly well they aren't exactly what I would call a high volume item.