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Dedicated folding cards / GPU Farm - Page 10

post #91 of 132
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First i am going to run all 4 cards and cpu like this for a few days to see how much heat is prduced.



If heat becomes a issue, i thinking what if i place all the rig as pictured above in an electrical cabinet. Then i was thinking of putting 3 fans blowing right on top of the cards and d14. Also place 3 of the same fans in the rear to help the exhaust out of the cabinet. The rig will be mounted in the cabinet to keep it stable.
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post #92 of 132
Thread Starter 
update: just got the parts today
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post #93 of 132
http://www.orbitmicro.com/global/pe-...2-p-15074.html

I don't know if you've seen those pci-e extenders...
post #94 of 132
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Quote:
Originally Posted by mach1 View Post
http://www.orbitmicro.com/global/pe-...2-p-15074.html

I don't know if you've seen those pci-e extenders...
Yep those are the ones im going with. They were the only ones that allowed me to choose the cable size.
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post #95 of 132
This will be great can't wait to see some pictures and ppd results!
post #96 of 132
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
I have a GTX 580 and 2 GTX 460's folding with the 970. -smp 11 works perfect. At 4.2ghz -smp 11 you will get around 44k PPD with the 970. At 4.4ghz is around 50k PPD. The most you will get with a 2600k at 5ghz -smp 12 is around 50-52k PPD. So clock the 970 to 4.4ghz -smp 11 and get the same PPD as a dedicated 5ghz 2600k from smp alone + around 44-50k PPD from 4 GTX 460's. It can be more if running linux.

Edit: click on my folding stat link to see my 970 with 3 gpu's
Im not sure but i read somewhere that linux is good for folding on CPU, but the CPU/GPU combo doesn't work well. I was planning on running everything through Windows 7.
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post #97 of 132
Quote:
Originally Posted by ali7up View Post
Im not sure but i read somewhere that linux is good for folding on CPU, but the CPU/GPU combo doesn't work well. I was planning on running everything through Windows 7.
I would wait until GPU folding is supported under linux natively. Right now it's done through a complicated mess of trying to get wine and cuda to play nice. Seems to be a struggle for most who try. I tried, failed miserably, and switched to boincing instead because they have tons of linux native GPU stuff to run.

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post #98 of 132
Quote:
Originally Posted by ali7up View Post
Im not sure but i read somewhere that linux is good for folding on CPU, but the CPU/GPU combo doesn't work well. I was planning on running everything through Windows 7.
Windows 7 is the way to go! Are you sure you don't want to go with a cheaper option for the pci-e riser cables. Folding cards only need 1x speed so you could reduce the cost quite a bit. With a little modding these riser cables would be a cheap alternative-
http://www.camera2000.com/en/pci-e-1...e-adapter.html
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post #99 of 132
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Quote:
Originally Posted by louze001 View Post
Windows 7 is the way to go! Are you sure you don't want to go with a cheaper option for the pci-e riser cables. Folding cards only need 1x speed so you could reduce the cost quite a bit. With a little modding these riser cables would be a cheap alternative-
http://www.camera2000.com/en/pci-e-1...e-adapter.html
I wasn't sure i could use those cables. If it works great that would save me a few hundred dollars. I saw a few china made cables but wasn't sure of their reliability and they don't come in custom sizes. What kind of modding are we looking at?
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post #100 of 132
Quote:
Originally Posted by ali7up View Post
I wasn't sure i could use those cables. If it works great that would save me a few hundred dollars. I saw a few china made cables but wasn't sure of their reliability and they don't come in custom sizes. What kind of modding are we looking at?
I purchased a couple of them to give them a try. They are about 5 inches in length. Since they non-shielded you will want to buy some foil tape and wrap the ribbon cable up to prevent any unnecessary interference. Then you need to dremel the wall at the end so that you can attach it to the card.
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