Is there any power supply pinouts for 2011 27 inch iMac power supply. I want to take the existing broken power supply out and wire a other power supply like a desktop power supply to drive the iMac. Power supply's for where I live is too expensive and I only want to power the iMac so I can is it as a external screen for my MacBook. I know there are conversion boards available but the importing them now is way to expensive also due to the outbreak.