Anyone running 2 power supplies in one case

[MoFunk]

If so, how do you get them both to power on with the power switch? I am thinking of running 2 in my new case. I am going to have a bunch of stuff going on as well as a heafty overclock. So I am thinking that by running one psu for the board and components, and another for fans, cold cathodes, and extra stuff like that it would be a little better. I have a 431 enermax that did not like my 8RDA and I am now running a 350. Not sure if that 350 is going to like the overclock and the 4 hd's and the fans and the cathodes. Thanks.

 

[Confused]

You can hard-wire the 2nd PSU to run, by connecting the green wire to any ground (black) wire on the ATX connector.

You could also connect up a relay to the 1st PSU, which will close the circuit to turn on the 2nd one.

There is also a product (sorry, no US links) which you plug in the ATX connector from the 2nd PSU, and a 4pin molex from first, and has a relay on it


Confused

 

[MoFunk]

Thanks Confused..... I may try the first one.

 

[DanFungus]

Here's a link to what Confused's talking about

 

[MoFunk]

That is the ticket! Anyone know where to find one in the US?

 

[DanFungus]

Originally posted by: MoFunk
That is the ticket! Anyone know where to find one in the US?

nope I don't...I was thinking about trying to get one of these some time ago, but I don't know where to get them here in the US...

 

[amdskip]

You could also use an AT power supply which has a hard on/off switch.

 

[Hazer]

That board is simply prewired. You can make your own easily and cheaply.

First: You will want to connect a true ground wire from one PSU case to the other.

Second: You take either a 5V(red) or 12V(yellow) lead from one of your molex connectors of main supply and connect it to the coil of a relay(look for a wiring diagram for the relay which is sometimes printed right on it. The coil is the spring looking thing). Then connect the N.O. (normally open) connection of one of the throws to pins 13 and 14 of the second power supply 20 pin ATX connector. If you really like things done professional (I do) you can also put an optoisolator between the 12/5V of your main supply and the relay coil. Though there really is no need.

BTW: Good thinking about what components to connect to each supply. You dont want to seperate your system components between supplies. Have one for system stuff, and the other to supply fans/lights/pumps/ etc.