Originally Posted by Seņor_Striatum
Dude are you an electrical engineer or are you self taught? Thank you. In regards to the trick are you talking about connecting the green switch wire with a ground so you can turn on the PSU via switch or without a mobo signal right? If so, you are suggesting to connect the 3.3v line from mobo to the psu wire which will allow the PSU to turn on once the PS3 is turned on right? I understand the rest clearly and thank you.
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I was actually recommending using a relay, controlled by the 3.3V line...so you would have the two lines from the ATX PSU that turn the PSU on when they touch...one would be connected to a low resistance resistor which would be connected to the output of a relay. The other would be connected to the input of the relay. The relay trigger would be the 3.3V from the PSU mainboard.
Oh, and I am self taught.
Originally Posted by Seņor_Striatum
Yeah but I am trying to clear room for the insides of the ps3... although I just realized that I can do what killerbug was explaining with the PS3 PSU and make it an external. In that case I assume you would just stick the 16 AWG wires, from the MOBO, in the two holes in the PSU where the pins used to go (and extending the signaling wires of course)?
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Yes, you can just put the PS3 PSU outside the case and extend the wires. Use 16AWG or larger for the fat 12V/GND pins and I would step up the thickness of the other 4 wires a little bit as well since longer wires need to be thicker to carry the same current. Keep an eye on temperatures inside the PSU...the way the PS3 routes airflow through the PSU vents on the way to the fan...without this, the PSU might need a small fan installed to prevent overheating.