I don’t think they intend to drop the clock at all (I don’t see how they can). Instead they are probably going to use many different clocks to operate the many circuits inside the CPU. I think you can compare this to integrating a video/lan/sound card into the CPU each running at their own clock speed with its own clock, internal bus and calling it a breakthrough . :rolleyes:

My post copied from #Rotor's thread:

Well a few questions naturally.

1) What's the power draw to move the 200ml/min
2) Can it be scaled up? Say using a CD sized disk and pushing 1l/min
3) What about clogging issues? 1 micron tubes make for a pretty effective solids filter

3gpm is 3.3ml/sec, or about 14W/C for the water.

i.e. every 14W pushed into the water will cause it to heat up by 1C. So even a 140W CPU will only cause the water to rise by 10C as the water flows through the block, so 3gpm is still "enough" flow.

The waterblock design to take advantage of this would have a fairly thick base-plate. I would imagine around 5mm would do it. Using a 1mm wide channelled maze design would make for a pretty effective water block. Just have 1mm wide channels zig-zagging back and forth across the block. 1mm wide fins by 4-5mm high. This would keep coolant velocity in the realm of "decent", and due to the super-low flow rates, would be far less restrictive than one would think.

Sure, it'd get warm, but if the block is designed properly I think the performance would probably surprise quite a few people. It won't be a high-performance monster, but it could cool a very hot CPU far more effectively and with far less noise and bulk than a HSF arrangement.

For laptops you could probably use the back of the display as a large passive heatsink.

> For laptops you could probably use the back of the display as a
> large passive heatsink.

Makes sense.

Just as reference, if you check the Hitachi link i posted, they used , for the prototype , the lower metal plate for heat dissipation. Stainless steel. Probably because corrosion issues.

But then again, taking BigBen's idea, couldnt you also use the backplate connected to a series of heatpipes attached to a heatsink on the processor? Something similar to what Zalman is doing in the "all heatpipe case" .

And does anybody remember this ? If i recall correctly, it has a series of microchannels inside.

Edit: just found this

http://www-me.stanford.edu/globals/goodson2.html

Crap pictures thou. I guess Cathar hit the spot again :D .

PS:
http://ssd-rd.web.cern.ch/ssd-rd/sem...eniers-pt2.pdf
http://cjmems.seas.ucla.edu/papers/Joo_MEMS95.PDF

The heat needs to be dissipated by the screen, becvause most people who sit their laptops on their laps (hence the name!) don't want the heat on their laps...

The problem is that the display also generates a fair amount of heat, so a "radiator" of some kind needs to be somewhat isolated from it, which in turn will make the whole contraption somewhat thicker, which is not appealing.

So combining the small pump, an ultra low flow block, and some (almost) capilary tubing for a rad, a laptop could be watercooled. The only problem to resolve then, is the reliability of the tubing run, across the screen's hinge.

(Man, I ought to just shut up and market this stuff!)

problem: Its not 3 gallons per minute, its three gallons per HOUR.

thats just a typo, the calculations are for an hour.

I'd be interested in seeing the math for that; my calculations using two or thee webpages came up considerably different; your probably right but I'd like to know why