Direct contact watercooling!

[Vampiyer]

http://www.xtremesystems.org/forums/...d.php?t=222040 -- this guy seems to get good direct-die results with slightly chilled water.

I've been looking for the lowest temps with the least power consumption. Although it is true that lower temps will allow the same clocks at lower voltages = lower overall CPU power consumption (which I'd be willing to allocate to the cooling)

There seems to be some conflicting evidence for direct-die cooling here. I though I "knew" that it wasn't as effective as using copper to expand the surface area, but uh... I'll look into it again later.

Phase-change is tempting, but I just can't justify the power/noise.

[rge]

http://www.xtremesystems.org/forums/...d.php?t=222040 -- this guy seems to get good direct-die results with slightly chilled water.

I've been looking for the lowest temps with the least power consumption. Although it is true that lower temps will allow the same clocks at lower voltages = lower overall CPU power consumption (which I'd be willing to allocate to the cooling)

There seems to be some conflicting evidence for direct-die cooling here. I though I "knew" that it wasn't as effective as using copper to expand the surface area, but uh... I'll look into it again later.

Phase-change is tempting, but I just can't justify the power/noise.

In post below this person did direct die and reported actual results with pics. At 1.13 vcore and stock mhz, load temps were 85C immediately on prime, or at least 55C above ambient and probably water temp.
http://www.xtremesystems.org/forums/...84&postcount=2

Below link is pic of temperature gradient (courtesy of stanford paper) through die at 78W load ...now imagine an i7 at 150+W OCed gradient just though the die. Removing the IHS or a heatsink increases the gradient through die according to intel, unless you replace with liquid that has a thermal conductance similar to copper. Fallwind's experiment in link above agrees with intel docs and experiments. The link you quoted does not.
http://www.xtremesystems.org/forums/...postcount=3189