How to make a Dual PSU setup?

[Mr.Nosmo]

Thanks for the info STEvil ! Why not attach the Pri. PSU to the system & 3x GPU's and Sec. PSU to the last 3x GPU's? - Will a SATA HD and a DVD-Burner be OK as load for the 5V-rail?

I can do electric-work myself - I done electronics in school, 220V house-install's and 380V engine-install's before, but I haven't "played" with PSU's before......

I would be happy to use only one PSU if I could fine one, so if anybody know a 80%+ PSU that comply with "ATX 12V 2.3" and "EPS 2.91" standards and can deliver min. +3.3V/30A, +5V/30A, +5Vsb/4A, -12V/0.8A & +12V/175A (one large rail or multi-rail (7x25A, 25/75/75A, 25/50/50/50A) and don't use more space than 2x PCP&C-1200, then I'm very interested!

I was looking into these modules, but I don't know how to wire them together and if it's possible at all......:
2x http://www.unipowercorp.com/pdf/pcp-tpcp-ds.pdf
1x http://www.unipowercorp.com/pdf/pchs-tpchs-quickset.pdf
giving
2x +5Vsb/0.25A, +12V/66.7A (Dedicated to GPU's)
1x +5Vsb/0.25A, +12V/10A, -12V/3A, +5V/50A, +3.3V/70A (Model# CDFGO)
but I don't know if +12V/10A is enough for the motherboard.

The solution with the 3x UniPower-modules would be optimal for me, because then I have enough space over them to for my 2x Laing D5 pumps.

[Oklahoma Wolf]

I would be happy to use only one PSU if I could fine one, so if anybody know a 80%+ PSU that comply with "ATX 12V 2.3" and "EPS 2.91" standards and can deliver min. +3.3V/30A, +5V/30A, +5Vsb/4A, -12V/0.8A & +12V/175A (one large rail or multi-rail (7x25A, 25/75/75A, 25/50/50/50A) and don't use more space than 2x PCP&C-1200, then I'm very interested!

Not going to happen. If you do the math, 175A at 12V works out to 2100W, which is not going to run on anything less than a 220V outlet in North America. In fact, even if six of those cards needed that much power (and they won't), you still wouldn't be able to power them all off of one household 110V circuit.

Personally, I'd wager one Ultra X3 1600W would still run all that. Still not sure the six 280's are the ideal solution though.

[Mr.Nosmo]

I won't have problems with the wall sockets, because I'm in Spain and we have 220V/16A = ~3500W breakers. The GTX280 uses up to 236W and HD4870X2 up to 286W, so I'm facing 6x236W or 6x286W = 1416W or 1716W for the GPU's alone, then add 2x25W (Pumps), 4x10W (UltraKaze3000 Fans), 1x 150W (Core i7-965@4500MHz), Motherboard (~50W) & RAM (~25W) - Giving about 2000W.....

I do think about down-clocking the boards, so I can get below the magic 1750W/system and this way be able to build systems.....

[STEvil]

Thanks for the info STEvil ! Why not attach the Pri. PSU to the system & 3x GPU's and Sec. PSU to the last 3x GPU's? - Will a SATA HD and a DVD-Burner be OK as load for the 5V-rail?

I can do electric-work myself - I done electronics in school, 220V house-install's and 380V engine-install's before, but I haven't "played" with PSU's before......

I would be happy to use only one PSU if I could fine one, so if anybody know a 80%+ PSU that comply with "ATX 12V 2.3" and "EPS 2.91" standards and can deliver min. +3.3V/30A, +5V/30A, +5Vsb/4A, -12V/0.8A & +12V/175A (one large rail or multi-rail (7x25A, 25/75/75A, 25/50/50/50A) and don't use more space than 2x PCP&C-1200, then I'm very interested!

I was looking into these modules, but I don't know how to wire them together and if it's possible at all......:
2x http://www.unipowercorp.com/pdf/pcp-tpcp-ds.pdf
1x http://www.unipowercorp.com/pdf/pchs-tpchs-quickset.pdf
giving
2x +5Vsb/0.25A, +12V/66.7A (Dedicated to GPU's)
1x +5Vsb/0.25A, +12V/10A, -12V/3A, +5V/50A, +3.3V/70A (Model# CDFGO)
but I don't know if +12V/10A is enough for the motherboard.

The solution with the 3x UniPower-modules would be optimal for me, because then I have enough space over them to for my 2x Laing D5 pumps.

I suggested two on the main psu and 4 on the secondary for load balancing issues.