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two psu's

post #1 of 9
Thread Starter 
i have two psu's a 400w and a 450w can i use then together e.g one for hardisks and dvd and the other fore motherboard will it work
post #2 of 9
Yes, the only problem is getting the second PSU to turn on when the main psu turns on(when you press the pwoer switch)

here is a good gide
http://www.overclockers.com/forums/s...ad.php?t=88976
however it is so much hassle and 650w's can be had for so cheap, therei s no need.

you can probably run your system on a deecent 500w.
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Main
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120Gb SSD + 1tbf3 H70 + typhoon Windows 7 24" Samsung P2450 
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600w Modxstream Silverstone Ps07 
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post #3 of 9
Here's a guide for how to do it. http://www.overclock.net/faqs/15751-...two-power.html

I don't know about the build quality of the PSU that you have but for your build it should be enough. If you think otherwise then I would use one PSU to power your motherboard and the other to power the 4 pin for your CPU as the rest of the devices don't draw much power to start and your GPU doesn't require external power.

I personally think it's not worth the trouble though.
Aigo
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Aigo
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Hard DriveOptical DriveMonitorPower
5*1TB Hitachi + Raid 0 32GB A-Data SSD Samsung DVD-RW Hanns.G 28" 1980x1200 Great Wall 800 Watt Power Supply 
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Silverstone FT-02 
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post #4 of 9
this is what i use to power my extra gpu/hard drive:

http://www.frozencpu.com/products/56...ter_Cable.html

i have been running dual psu for 2 years now and it's going strong.
post #5 of 9
Dual PSU? I think it's stupid.. and honestly i can't begin to imagine how much power you need to run off your own house electricity. What a waste. Stick to 1 good energy efficient psu!
post #6 of 9
Quote:
Originally Posted by 78@pwnt4lif3 View Post
Dual PSU? I think it's stupid.. and honestly i can't begin to imagine how much power you need to run off your own house electricity. What a waste. Stick to 1 good energy efficient psu!
Lol, you need to go read on how a PSU works.
post #7 of 9
I use to run 2, I did the paperclip trick, I also connected ground from one PSU to ground on the other PSU, you don't have to jump the grounds but I felt like it.
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post #8 of 9
Your system could run on either of those power supplies (assuming they aren't crap).

Two power supplies for one system is a pointless or terrible idea 99% of the time.
post #9 of 9
Did it with a Dell Optiplex. Got a extra one powering the hdds. Connect the green and the black with a paperclip or a small piece of wire on the connector normally going to the mobo. Tape it up and away you go
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