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Discussion Starter #1 (Edited)
New Apple PowerMac G5 is liquid cooled

Apple's top end machine, the 2.5 GHz dual processor PowerMac G5 is liquid cooled. The two lower models, the dual 1.8 and the dual 2.0 GHz, are not liquid cooled. This technology is nothing new as over-clockers frequently modify there PC's with various forms of liquid cooling to handle the heat. Here's a pic. Kind of looks like something you'd find on a Vespa!



The new G5 970FX processor is built by IBM using the new 90-nanometer process must be running pretty hot due to the power density of the process.
 

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A radiator on a PC man you just got love it:lmao:
 

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Don't let the grass build up in the radiator! :lmao:

I suppose they use some sort of an antifreeze solution? Ethylene glycol maybe? I believe that to be most common used solution for cooling of projection TV crts now. Many years ago we were told to just use distilled water for refilling.

Mark
 

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Discussion Starter #4
Originally posted by memmurphy
Don't let the grass build up in the radiator! :lmao:

I suppose they use some sort of an antifreeze solution? Ethylene glycol maybe? I believe that to be most common used solution for cooling of projection TV crts now. Many years ago we were told to just use distilled water for refilling.

Mark
I don't know about grass, but I bet there might be some serious dust bunnies! :D

I think they are using a propylene glycol and water mix.

The G5 Towers have 9(!) fans inside the case, which is surprising considering the PPC architecture of the processors is supposedly cool running. (note: the Mac OS will only run on PPC, currently fabricated by Motorola & IBM, whereas Windows is X86 fabbed by Intel and AMD).

My old CRT G3 iMac is fanless or convection cooled. I have had no heat related problems. The only noise it makes is from the hard drive, which is nice. My kids G4 LCD iMac has one small fan and is whisper quiet. So obviously the new processors by IBM (there are 2 of them, though) run a lot hotter than the old chips produced for Apple, but they are a lot faster.
 

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Originally posted by MowHoward2210
Here's a less elegant cooling solution.



<img src=http://www.homepage.mac.com/userosx/.Pictures/chiller.jpg>
This must be for the lower price models:furious:
 
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