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Originally Posted by Long Haired Git
What happens at the motherboard edge?
Is there a big heat sink there?
What is the air flow there like (CFM) and at what temperature is it?
"Maintaining at 85 degrees" is not useful info when ambient is ????
TEC's are useful only when you want to cool smallish loads to sub-ambient temps. Transmission of heat is only the thickness of the Peltier = less than 5mm.
You've got a load small enough, but no desire for sub ambient temps.
You've got a fair distance you wish to move the energy.
Given an assumption of ambient in a server in a air-conditioned data centre of 30°C, you've got a massive delta-T to work with (at 85°C) and such a small heat load.
What's wrong with an aluminium heatsink and fan?
If you want to get fancy and you have a hard ceiling temp, why not heat pipe(s)?
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ohh ya. the ambient temp will b around room temp of 25degC-30degC.
Anyway why do you think the delta-T is massive and i have a small heat load? Cause to me, isnt the heat load = to the heat output by the card edge which also = 100W?? Correct me if i am wrong.
You say by using an aluminium heatsink with forced convection, is it able to obtain the card edge at 85degC easily?? but if I go for the heatsink combination, is it possible to constantly maintain at 85degC?? I believe a temperature controller is required.
Ohh one last thing, thanks for your inputs.