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hijack power supply

post #1 of 4
Thread Starter 
HEy quick question and im sure you guys now the answere,

how do you hijack a power supply so you can run fans off of just to test them?
i heard its like something like stick a paper clip somehow in the 24 pin connection?

any hints?

thanks guys
post #2 of 4
If you want to more or less give the "power good" signal to turn the power supply on, you need to connect the "power on" pin on the ATX connector (green wire) to one of the ground wires (black wire). It's low active, so it turns on when pulled to ground.

http://en.wikipedia.org/wiki/Atx#Power_supply

So yeah, you'd be sticking a paper clip to connect pin 16 to one of the ground ones like 15.

Some power supplies may possibly misbehave or not turn on with a certain low load like that, but it's probably okay. Anyhow, it's just fans you're testing.
post #3 of 4
You short the green wire to the ground and it powers right up. I've done it to leak test my loop.
    
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CPUMotherboardGraphicsRAM
Core i7 5930k MSI X99S SLI GTX 1080 32GB Crucial DDR4 
Hard DriveHard DriveCoolingCooling
(3x) Crucial 256GB (768gb RAID0) WD 3TB EK Supremacy EVO + D5 Vario GT-AP15 
CoolingMonitorMonitorKeyboard
2X HWLABS GTX360 (2x) 1440p QHD PLS MicroBoard 40" 4k MVA Corsair K70 RGB 
PowerCaseMouseAudio
Corsair RM1000 Custom Build Logitech G900 Yamaha RX-V465 + 5.1 Surround 
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post #4 of 4
Thread Starter 
ty, after no reply for a bit i just youtubed it, just want something to have to test new stuff as it comes so i dont have open up my case and stuff thanks man smile.gif
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