Tuesday, September 23, 2008

Using Work Bench Computer Power Supply

Be able to test if hard drive spins up without having to connect it to a computer


Use an old power supply. Cut the the green wire and connect it to one of the black ground wires.
Note that some power supplies may have either a gray or brown wire to represent "power good"/"power OK". This wire should be connected to either an orange wire (+3.3V) or a red wire (+5V) for the power supply to function. When in doubt, try the lower voltage first (+3.3V).


A computer power supply will not work if you just plug it in on the bench. You need to ground the green wire. Here is a link on how to turn your computer power supply into a bench supply for electronics projects.


1 comment:

alansaki said...

I am really impressed by this blog! Very clear explanation of issues is given and it is open to everyone. thanks for posting this work of yours..this is very good!
Dell Computer Power Supply