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3way GTX470 SLI on an old nforce 680i board?

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a b U Graphics card
July 24, 2012 4:01:04 PM

Hey guys,

So I am currently running this Asus P5N-D board with 2 stock gtx470s. Now I know my older CPU is the limiting factor in this system but it runs 3 monitor surround in all of the games I have well enough at 5760x1080 to keep me happy. Perhaps next year I will get an i5 or i7.

Anyway I recently got my hands on this EVGA 680i board and a 3rd gtx470. I thought about selling them or building another system and selling it or just keeping it around. But then I had the crazy idea. Why not put all 3 GTX470s on that EVGA 680i board.
http://www.evga.com/support/manuals/files/122-CK-NF68.p...

It should be able to run PCI-e 2.0 at 16x16x8, so that should be enough for these cards. I don’t think this will get me better frames as I am sure that my q9650 is already working as hard as it can. The trouble is I can’t find any articles or reviews or information on someone silly enough to put 3x 2year old video cards in a 5 year old board.

So here’s the questions: Does anyone have a 680i board with 3 way SLI, does it in-fact run 16x16x8?

Do you folks even think this project is worth the effort? At this point this won’t cost me anything but some time and effort.

Anyone seen any articles or posts were someone mixed similar parts?
a b U Graphics card
July 24, 2012 4:42:17 PM

'nutty' - sup dude..... :p 
sell off the hardware and go SB or IB, you'll have the money now..

you already admitted that the Q9650 is chugging along now then going higher in GPU's makes no sense.
but the thought of actually trying it in your house with your own eyes... ye OK.. :lol: 

really overclock and get the 2500K, or newer 3570K and solid overclock is the way I would go.
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a c 272 U Graphics card
July 24, 2012 4:56:48 PM

What CPU did you intend to use?
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a b U Graphics card
July 24, 2012 5:02:35 PM

I will use the q9650. I have been running it at 3.6 with a big old zalman cooler on it for at least a year. I can only assume I will be able to get the same over clock out of the evga board.

I also have a set of gskill 4x2gig ddr2 1066 ram that I can try in that board.

I would basically be rebuilding my exisiting computer with the older board.
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a b U Graphics card
July 24, 2012 5:07:03 PM

waste of time.....
'stuck in the mustard and need to catch-up...'
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a b U Graphics card
July 24, 2012 5:22:46 PM

cpu power is not an issue but 3.6 is the limit for you I am afraid ... with that motherboard you already have a great overclock and the 775 mobo's are not cheap or worthwhile when a p67 and 2400 will better do the job. You can recover a lot of money 150-200 with that cpu alone, I wouldn't pay it but someone will.
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