2 psu's in one case

[reverend boltron]

Hey, i was wondering if it would be okay if i were to put more than one power supply in a case. I know i'll have to mod the back of the case so i can plug both of them in. But i was also wondering if there would be any comlpications that go along with this. I know that i would have to rig up the power button (or possibly the power cords of the psu's) to power up both psu's at the same time. but i was thinking that i might just have one psu for the computer, and the other one for the mods that go along with it.. Incase the wattage starts eating up power, so i can save on my utililty bill, i want to be able to turn off the mods without too much trouble (i.e. disassembly.. putting a switch somewhere). I do also realize that there might be complications that come along with another psu, like what to hook up to it and such. but i basically decided i would only hook amenities up to it. which means fans and such would still be connected to the original psu.. that way i can still oc w/o blowing up my chip. ok.. thank, i look forward to your replies.


the Rev

 

[Harvey]

It sounds like a bad idea for a number of reasons. Remember, any peripheral that plugs into a slot draws all or most of its power through the connector.

1. If there is any crossconnection between the two supplies, even at the same voltage, the circuits that regulate the two could interact, causing the voltage rail to fluctuate or even self destruct.

2. The second supply will take up a lot of space that would otherwise be available for air circulation, and it would also generate its own heat. You're asking for thermal problems.

I'm sure if I thought about it much longer, I could think of more reasons, but basically, your case is designed to hold one supply. You're better off buying one high quality supply with enough rated power and good cooling design.