Originally Posted by write2dgray
You guys re-inspired me, so I pulled out the old Dell DPS-500CB 502W supply (41.0A on 12V line) I bought on eBay a year ago and tricked her into working. It took some doing, and in the end it requires that a small load be present when the power supply is fired up. A plugged in charger will do fine, but if at any point the charger is turned completely off for more than a few seconds, the moment it is turned back on, the power supply will cut off.
No biggie, but it took me a while to figure out what was tripping this. Now I've got a 12V/41A supply...if I should ever need it.
For any that may stumble across it - what worked for me (it is a 6 column x 4 row grid), in the end I simply bent and soldered the three pins marked "Y" together:
N N N N N Y
N N N N Y N
N N N Y N N
N N N N N N
I have a bunch of these from work out of retired servers and I've shorted the three pins you mentioned. The power supply does turn on but I still don't get 12V off of the blades. is there anything else you had to do?