Sign in with
Sign up | Sign in
Your question

How do I make a Dell power supply turn on when not connected to the motherboard?

Last response: in Components
Share
August 12, 2011 7:58:08 PM

I am trying to make a Dell ATX12V2.01 400 W power supply work with a couple of external USB drives. How do I turn the P/S on. It is not connected to a motherboard. There must be a way that the motherboard calls for power.
DrBob
a c 243 ) Power supply
a b V Motherboard
August 12, 2011 8:02:48 PM

Pretty much the same way you would start any psu, jump the green PWR_On pin with any of the black ground pins on the main connector, and plug it in to the wall
m
0
l
Related resources
August 13, 2011 12:21:25 PM

Thanks, delluser1 and Mcnumpty23! I already knew about the green lead. What I didn't know (but should have) was that this switching p/s like many will not turn on without a load. You have to have something (like a hard drive or DVD reader) plugged in when you do your "paperclip trick"
Thanks again for the prompt reply.
DrBob
m
0
l
September 22, 2012 2:44:15 PM

delluser1 said:
Pretty much the same way you would start any psu, jump the green PWR_On pin with any of the black ground pins on the main connector, and plug it in to the wall


My PSU model PS-5251-1D 24 plus 16 pin does NOT have a GREEN wire. ONLY a single PURPLE wire. That the same as the GREEN?
m
0
l
a c 243 ) Power supply
a b V Motherboard
September 22, 2012 2:51:41 PM

rtrg said:
My PSU model PS-5251-1D 24 plus 16 pin does NOT have a GREEN wire. ONLY a single PURPLE wire. That the same as the GREEN?

Insanely old Dell psu, grey wire is pwr_on

PS, do not plug this into a modern motherboard
m
0
l
November 16, 2012 12:02:30 AM

2651088,6,132889 said:
Insanely old Dell psu, grey wire is pwr_on

PS, do not plug this into a modern motherboard[/quotemsg

Does the GRAY wire on the 5251D equal the GREEN wire on the 24RGY? Is the combination of the 5251D and a mobo 25REH(8100/400) the reason why I get a solid ORANGE led on the front power board? Will a 24RGY PSU solve that issue? Or is it just coincidence that the 5251D bad(low voltage?) I have a 24RGY coming. Please tell me my theory is correct. reeltoreelguy@gmail.com
m
0
l
!