HP Server Power Supply conversion - RC Groups
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Aug 28, 2010, 08:51 PM
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HP Server Power Supply conversion

hello all i have a hp dps-500 ab a power supply that i think came from a netserver it is a 495w psu and has what resembles 2 24 pin connectors and i think they call it a hot swap psu, now my question is does anyone know where the location for the ps_on is on this psu, i have searched and even called hp, with no avail a good discription of the psu and some pics are here


i am lost and i would like to convert it to a charger but im stuck at step one, locating the pin/pins to power on the psu. i hope someone could help
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Aug 28, 2010, 09:24 PM
Southern Pride
everydayflyer's Avatar
Post here


may provide some help as to a logical approach to trail and error. You can also just wait and hope someone comes along with the solution.
Last edited by everydayflyer; Aug 29, 2010 at 08:21 AM.
Aug 28, 2010, 09:35 PM
Registered User
ggcrandall1's Avatar
Check this thread. You might find some help there.


Aug 29, 2010, 01:15 AM
ancora imparo
jj604's Avatar
At least I can tell you what they are out of. (Thanks Google!)

HP NetServer Rack Storage/12
See page 92 of the attached. No pinouts unfortunately. There never are, that's why there are a number of threads from the "suck it and see" guys who have figured out how to make various supplies work. You might be able to find more info on the net by searching on the full device rather than just the PS though. Good luck.
Feb 14, 2016, 02:47 AM
Registered User
Hello - I too have one of the HP DPS-500AB-13A power supplies. Have you been able to figure out the correct pins for enabling this supply?



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