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Capability of 5VSB

HermannTheGerman
By HermannTheGerman
in Power Supplies
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Go to solution Solved by Mira Yurizaki,

Look at the power supply's label. It should say how much amps the 5V_SB rail can provide.

Posted

Hi,

I was planning to power a tiny Arduino board over the 5VSB Pin from my PSU so that I could remotely start and hard reset the PC. Does anyone have any experience with the power delivering capabilities of that standby pin? I read in various places about a 10mA limit which would not be enough, as the ESP8266 has a maximum power draw of 85mW (-> 170mA). In other places I've read about a 2A current limit. The manual of my PSU (a Corsair VS450) doesn't give me any information...

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  • Author

Thanks! I had to take the PSU out of the case for this but on the underside it actually says 5Vsb 2.5A. I feel a bit stupid now.

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