Turning on an old power supply

C

condennnsa

New Member
Hello everyone. I have 4 power supplies from some old computers, and I want to turn them into Desktop power supplies. They're not atx, and I don't know how to turn them on. They are made by Lucent Technologies, model LP300A.

I have found the pinout on the internet on this website:
http://sunsolve.sun.com/handbook_pu...mple/Devices/DCPOWER_Lucent_1337_300W&source=

That page says that on the 16 pin connector, pin 10 is for power on, I tried connecting pin 10 to ground but nothing happens. I want to mention that I also connected a resistor on the 3.3V rail when I tried, because I heard that some power supplies won't turn on if not loaded.
Did I need to connect some other pin to pin 10, instead of ground?
Does anybody know which pins I need to connect in order to get turned on?
thanks
 
Usually you can turn powersupplies on buy shorting out the green and black pins. Not sure how your unit works though seeing it's not ATX.
 
I know that the new PSUs are turned on by the green wire, but these are really nice PSUs , they came from servers, and can handle a huge amount of current, 60 amps on the 3.3volt rail and 30 on the 5volt. With 4 of them in parallell that's hundreds of amps. I want to put them to use in an electrolytic cell. If only i could turn them on. I tried using a multimeter on the 16 pin connector to figure out which wires have any signal on them, there were 4 or 5 pins which showed 5 volts relative to GND. I tried connecting them in every combination i could imagine though nothing happened. The problem is that even though I found the connector Pinout online, I don't understand what those functions mean: what do things like +-sense, ovp program, POR refer to?
 
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