Originally Posted by Yrd
Wait wait wait, that power supply is powering your xbox? I thought it was just for your water cooling.
Yup it powers everything. Didn't want to fool with the xbox power supply which was just enough to power the xbox. Also it permitts everything to be turned on and off at the same time so no accidentally turning on the xbox without the cooling system.
The slim can be done the same way I assume since they do make power cable adapters which permit operation of the slim on an original xbox360 power supply.
The way it works is when the xbox is turned on the voltage on the blue wire turns on the transistor which effictively shorts the collector to ther emitter thusfore turning on the computer power supply. I suppose a relay could be used as well.
Failed to mention that the 5 volt wire in the xbox power cable must be connected to the 5 volt standby wire in the computwer power supply cable.