Question about 2nd PSU in one pc.

[legend21]

Hi all, I really need some help here, just got a new motherboard and 4x R9 290x graphic cards. My real worries are the 2 differents PSU'.

XFX 1250W and the 2nd one is a Be quiet 650W. I was wondering if i could use the XFX to support all of the graphic cards and let the other PSU handle the the Motherboard and fans etc.

i hope someone can help me out with this. Got a ATX entender but i dont really know where to cut and what to do to get this to work. Dont wanna destroy my system.

Thank you

[ryanc]

Yes, this is possible. The safe way would be to use one of these:

http://www.add2psu.com/

The less safe way is to use a relay to short the green wire to ground (black) on the second PSU when the first PSU is turned on, but things might catch fire if you mess up.

[powderspecial600]

The other option would be to grab a Lepa G1600 power supply if you want to go with the more expensive option and stay with a single psu.

[legend21]

i heard from one guy here i can use 2x 24 atx pin tnx for all your help