Power question

[Chris Stolworthy]

Ok I am gonna use a computer PSU to power my peltiers...now my next question
is. Which leads do I use? Do I have to pull apart the mobo power
connector? Or can I use a typical power adapter(like the one you use for a
harddrive)? Anyway I just need to know which ones to use...

 

[kony]

Ok I am gonna use a computer PSU to power my peltiers...now my next question
is. Which leads do I use? Do I have to pull apart the mobo power
connector? Or can I use a typical power adapter(like the one you use for a
harddrive)? Anyway I just need to know which ones to use...

You'd want 12V and ATX connector only has one lead so you're just
as well off using the 4 pin drive power connector(s). You could
indeed use a typical adapter but keep in mind that you'll be
pulling a lot of amps through these so it would be best to use as
few mechanical connectors as possible, 1 pair seeming the
optimal choice since it's unlikely you want to solder peltier
lead direct to PSU wire.

On most "standard" power supplies the color scheme has 12V as
yellow wire, and either ground will do per plug.