Auto power up ATX power supply

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About 2 months ago my mainboard was strike by lightning and can’t find the new mainboard for the old processor AMD Athlon 64 poor old thing. So now left on the casing is the DVD-RW and 3 hard disk, not worth for me to invest another new processor and mainboard as the desktop mainly for watching and download movies.

So I plan to buy 3 SATA/IDE to USB converter to hookup my 3 hard disk, but those converter need to use external power source to power the hard disk and if you have 3 set then you have to use 3 power point that will be mess with cables. Good if you still have the old AT power supply where you can turn on and off the power supply by the switch.

And I don’t have any old AT power supply so I Google and see if there is any guide on turning on ATX power supply without mainboard and viola found some guide on doing that and it was really really simple. Thanks to all the guide out there and it really helpful, below is how to do it.

 

To turn on an ATX power supply that isn’t connected to a motherboard use a wire or paper clip to short the green wire (PS_ON) to any one of the black wires (COM).

Also, be aware that some of the older Dells (older than Dimension 4300) did use proprietary powersupplies that are not wired the same as the ATX standard, even though they will look physically the same.

Source : techPowerUp

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