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<TITLE>RS: [Beowulf] overclocking with liquids</TITLE>
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<P><FONT SIZE=2>Hi.<BR>
<BR>
Been there, done that. Bad results, since *all* the chips including the CPU overheated. It looked like there was not enough convection to make the oil circulate fast enough to evacuate heat. I didn't try with an immersed fan, however -- a fan that should be powerful enough to push the oil around.<BR>
<BR>
Happy experimentation! Just don't do it with components you value.<BR>
-Alan Ward<BR>
<BR>
<BR>
<BR>
<BR>
<BR>
-----Missatge original-----<BR>
De: beowulf-bounces@beowulf.org en nom de Peter St. John<BR>
Enviat el: dj. 20/09/2007 17:32<BR>
Per a: beowulf@beowulf.org<BR>
Tema: [Beowulf] overclocking with liquids<BR>
<BR>
A fellow (concerned with oober gaming rigs) just mentioned to me immersing a<BR>
motherboard in something like vegetable oil, and overclocking the board. The<BR>
liquid has to insulate, and have more heat content than air (easy!), and not<BR>
too low a boiling point, and not be corrosive. No moving parts (such as<BR>
fans) can be immersed, so the disk drives have to be above it etc.<BR>
It made me wonder if you could then pour over a layer of something lighter,<BR>
but with higher vapor pressure, to float on top, and evaporate away heat,<BR>
like alcohol (maybe evaporate too fast).<BR>
<BR>
I'm picturing stacking trays, like the cart at the cafeteria, for diskless<BR>
compute nodes, and maybe extend the life of older boards.<BR>
<BR>
This may be nuts but I thought all you chemists and physicists would like it<BR>
:-)<BR>
Peter<BR>
<BR>
P.S. also Intel (according to slashdot) intends to sell 3-core processors<BR>
(so they can sell quad cores that have a manufacturing defect; reminds me of<BR>
the 487 "SX" math coprocessor, an i486 with a defect in the CPU component).<BR>
Since that means more RAM on the motherboard per core, that might be very<BR>
economical for some types of applications.<BR>
<BR>
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