Agreed Brad, I think he deffiniatly needs to have a looksie at those PSUs with a Multimeter. You can find one cheap at Rat Shack that will do what you need. At least this will give you a good idea as to what you're feeding those power hungry TECs.
Yes, AS won't make much of a difference form Rat Shack paste, I was more asking if you had a thermal interface. not trying to insult your intelligance but i have heard of people using nothing in the way of paste with the TEC interface.
You may want to try running the system outside of your box with no CPU. Fire up your cooling system and the TECs, see how long it takes frost to form on the cold plate. Should take maybe 20-30 seconds for frost to form. If there's no frost on the cold plate you know there's a problem with your TECs. If you've got frost you know they are both doing what they're supposed to be doing.
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