Need help on using two power supplies .....

[amurch1023]

I knew at one time bu have forgotten.

I need to know how to hook up two ATX power supplies so that both turn on when I turn on the machine. Like which wires to connect, or a link to a article on how to do a really clean dual PS setup.

Any help will be much appreciated.

Thanks

 

[Colt45]

hmmm i think you hook everything in parralell at the switch.. blue&blue&pin1 (theoretical, i dunno what it actually is)
like just ditch one switch? and put the wires that were attached to that switch up to the one remaining switch?

just a guess..

 

[Mikendi]

What are you doing with the second PSU? I ask because AT power supplies have their power switch hard wired to the supply. Just a thought 🙂

 

[amurch1023]

Oh, I am just upping the power. I plan to dedicate one two the motherboard and have the second power all my fans (3-120mm, 7-80mm) and drives (4-Harddrive, DVD, CDRW).

I have a 3-1/2 foot tall case so I have room for two additional PSU's above the original one. So I figure since you get much more of a increase in available amps with two PSU's I'd go that root over sinking a large chunk of money into one good one.

I have a TopPower 300w and a Deer 250w. So basically 550w. But even better is that I now have 35-50amps available as apposed to 15-30 from a single good PSU costing 50-150+ dollars.

A AT PSU would be a good thing to use for all the case fans....hmmmm....three PSU's????

 

[Mikendi]

I'd go with the AT PSU then as you only have to drill a hole for the switch.