How to use the SMPS power supply of PC without using the motherboard?

Posted on 2009-04-26
Medium Priority
Last Modified: 2013-11-09
I have two SMPS power suppliy boxes with me. One I use with the computer and the other is idle but is working fine. Now since I have requirement of one more connection for extra hard drive, I want to use the idle one SMPS for the same instead of  buying a new enhanced one. Now since the motherboard has only one main socket which I am already using, How can I make the other SMPS active without inserting the SMPS pins into motherboard. Which are the wires which I need to short to make it Operative?
Yes I understand that it is recommended to use the new one to save my hard drive for proper shutting down, But I can use the existing one for DVD player etc.
Please help.
Question by:abhinavchunmun
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Accepted Solution

_ earned 150 total points
ID: 24238965
You mean like a 20/24 pin power supply?
Just make a jumper to short the green wire to a black wire.

There are several mods floating around for different ways to wire it in-line with the other one, so they go ON and OFF with the front button.
LVL 32

Expert Comment

ID: 24239039
Here is one of them. The CPU direct link can be funky is you are not a member, but paste the the search phrase below (including the quotes) into Google, and it will get the whole article.

"Computer Power User" Dual-PSU Mod

Dual-PSU Mod         
February 2008 ? Vol.8 Issue 2
Page(s) 38-41 in print issue
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Expert Comment

ID: 24239125
Thank you much.   : )

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