MSI transforms chip heat into cooler power

Willy Higinbotham · Post by **Willy Higinbotham** » Fri Feb 29, 2008 12:01 pm

I don't know if this is the right forums, if not please move.

MSI Ecolution Motherboard

[quote]MSI is making thier ECOlution motherboard to showcase at CeBIT. The mobo comes with an â€œair powered coolerâ€

jessekopelman · Post by **jessekopelman** » Fri Feb 29, 2008 3:24 pm

The most interesting part of this idea is that temperature based fan speed control is inherent to the device. I wonder how cost effective it would really be to do this for individual chip sets, though. It seems like a better implementation might be to connect multiple components to a single Stirling engine/HSF via heat pipes -- basically, like a water cooling implementation.

thejamppa · Post by **thejamppa** » Sat Mar 01, 2008 3:56 am

Stirling engine aren't that effective. Depeding on chip's heat, its effectiveness is 15% max in theory, while in practise its effectiveness would roughly like 10%.

When MSI tells it could transfer 70% heat into motion energy, that's BS, since cars combustion engines run 25% to 35% effectiveness... If MSI could make 70% effective Stirlingengine, they would win a Nobel Prize...

jaganath · Post by **jaganath** » Sat Mar 01, 2008 4:50 am

When MSI tells it could transfer 70% heat into motion energy, that's BS, since cars combustion engines run 25% to 35% effectiveness... If MSI could make 70% effective Stirlingengine, they would win a Nobel Prize...

MSI probably mean 70% of max Stirling efficiency so 70% of 15% is 10.5%, like you said.

Post by **NeilBlanchard** » Sat Mar 01, 2008 5:02 am

Hello Willy,

I beat you to it -- sorry!

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