Is my tec ON???

[charlie]

All,
I just fired up my mcw50t and it seems to be ok...
But when I turned it on the first time, I heard a little snap sound.
I'm using a 5 gallon resevoir and a submersible pump pushing about 200gph. Now after a few hours, the water heats up to about 28-32C. But this may be from the submersible pump. I can't feel the back of the pcb, as I have it insulated. I observed a fluctuation on my 12v rail as I disconnected (briefly) my tec power connector from the psu. I know I can do it by removing the block from the card, but then I'd have to jump the psu...ideas?
C

[KnightElite]

If you can't feel it getting cold... then there's not really any way to check without taking it apart and making sure, or somehow sliding a temperature probe down next to it.

[charlie]

Knight
do you have the details on jumping an atx psu?
I know there was a diagram posted somewhere a while back
C

[KnightElite]

Yeah, it's really easy. Just connect the green wire (Pin 4 from the left, when the little clip is on the top and away from you) to any black (ground) wire.