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- Dec 25, 2009
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Hey guys,
Finally got a lab laser that requires an analog modulator to run (5V DC). I figured I'd take apart an old computer I made a few years back and use the PSU for this task.
Problem is--the PSU doesn't tell me which color wires are which voltage. Are all wire colors typically the same (e.g. black as ground and red as the +5V)? And I believe I should short pins 3 and 4 in the motherboard rail to get the PSU to turn on, correct?
Here are some pictures:
I've looked online for specifics with none to be had..
Also,
I'm thinking of cutting this part (below) off and stripping the wires to wrap to the analog wires from the laser power supply. "P9" part was being used but P8 wasn't so I figure if I ever need it again I can just use P8 (which is the part covered by the little black cover--this shouldn't damage anything should it?):
Thanks again!
Finally got a lab laser that requires an analog modulator to run (5V DC). I figured I'd take apart an old computer I made a few years back and use the PSU for this task.
Problem is--the PSU doesn't tell me which color wires are which voltage. Are all wire colors typically the same (e.g. black as ground and red as the +5V)? And I believe I should short pins 3 and 4 in the motherboard rail to get the PSU to turn on, correct?
Here are some pictures:
I've looked online for specifics with none to be had..
Also,
I'm thinking of cutting this part (below) off and stripping the wires to wrap to the analog wires from the laser power supply. "P9" part was being used but P8 wasn't so I figure if I ever need it again I can just use P8 (which is the part covered by the little black cover--this shouldn't damage anything should it?):
Thanks again!
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