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Old 08-12-2009, 09:01 AM   #1 (permalink)
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Question 12 dvi outs - need a proper power source

this is my first post in the tech forums.

to put it the short way, i am looking for a proper power supply for my new system.
here are the details:

system introduction:
i work with video installations (multiple projectors - panoramic views)
i am putting together a system seeking two goals:
1. as many dvi-outs as possible
2. live vga input
i am not interested in any sli setups, nor raid.
video content is mainly generated inside the gpus on the fly so no big files to be read from hdd.

i am picking the asus p6t7 supercomputer mobo for its 7 pcie2 slots, in wich i plan to insert 6 video cards and one vga capture card.

system parts:
mobo: ASUS P6T7 WS supercomputer
cpu: intel i7 950
cpu cooling: noctua nh-u12
gpu: 6 x XFX geforce 9800gt green edition 512mb ddr3
hdd: western digital 150gb sata2 10000rpm
ram: corsair 6gb ddr3 1600mhz
ram cooling: corsair cmxaf2
case: lian li pc-x2000 black
dvd: samsung writer sh-s223f
capture card: datapath vision rgb-e2

thank you,

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Old 08-12-2009, 09:33 AM   #2 (permalink)

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Location: Toronto, Canada
Posts: 6,987
Default Re: 12 dvi outs - need a proper power source

The bare minimum you need is 960W by my calculations. That's with a 90% load and 10% capacitor aging.

I would suggest the PC Power & Cooling T12W 1200W.

You won't have to worry about it shorting and it has enough PCI-E connectors to power all 6 cards.


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Old 08-12-2009, 10:55 AM   #3 (permalink)
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Location: Melbourne, Australia
Posts: 14,559
Default Re: 12 dvi outs - need a proper power source

I'd suggest a bunch of these:
Newegg.com - POWERCOLOR AX4650 512MD2 Radeon HD 4650 512MB 128-bit GDDR2 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Desktop Graphics / Video Cards

They're single slot, have 2 x DVI, and don't use much power.

Though I don't think you'll need the i7 950. The 920 should be fine.
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