Blizzie
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If I have a GTX 260 in a 4x PCI-E slot (handled by PCH in P55) how does that affect the folding capabilities?
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EvAnA11
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 15:19:54
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I've read that it doesn't make a big difference, but I could be wrong because I've never tested it myself. Here are some benchmarks using different slots. http://www.tomshardware.com/reviews/pci-express-2.0,1915-11.html No folding tests in there but I can't imagine it being that much different from gaming.
post edited by EvAnA11 - 2010/04/13 15:21:55
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mflanaga
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 15:33:35
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I have a 9800GT in a x1 slot (using a riser) and there's no difference between that one and other slots..GPU folding requires very little bandwith. I once ran 4 9800GT's in ONE computer. THREE of them were on risers to fit in the x1 slots.. An old ASUS p5B ;still got it too, just not folding on it as I sold all but one of the cards.
post edited by mflanaga - 2010/04/13 17:20:00
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Blizzie
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 15:37:18
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@EvAnA11: The benchmark shows very little difference between having less bandwidth -- thanks. @mflanaga: Good to know, thanks.
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Governator
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 16:06:14
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Good info guys, was wondering the same thing myself
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pgmoney
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 16:25:59
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yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.
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flyinion
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 16:30:12
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Yeah I would think if you can use a 4x slot for Physx purposes, there shouldn't be any effect on folding. Maybe I misunderstand how much data is being fed for folding though which is very possible since I've only been at this a couple months and don't know any of the finer details of what's going on.
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Blizzie
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 16:44:19
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pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s.
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Full Metal Folder
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 16:47:04
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Blizzie pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s. As far as i know the updated core version 1.31 took care of that problem.
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heydabop
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Re:How does 4x PCI-E slot affect folding?
2010/04/13 20:59:06
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Full Metal Folder Blizzie pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s. As far as i know the updated core version 1.31 took care of that problem. That's also what I've been hearing. Mixed card folding appears to work just fine now.
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Blizzie
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Re:How does 4x PCI-E slot affect folding?
2010/04/14 13:48:02
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heydabop Full Metal Folder Blizzie pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s. As far as i know the updated core version 1.31 took care of that problem. That's also what I've been hearing. Mixed card folding appears to work just fine now. Can anyone verify? I don't want surprises later..
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pgmoney
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Re:How does 4x PCI-E slot affect folding?
2010/04/14 19:17:36
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Blizzie heydabop Full Metal Folder Blizzie pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s. As far as i know the updated core version 1.31 took care of that problem. That's also what I've been hearing. Mixed card folding appears to work just fine now. Can anyone verify? I don't want surprises later.. if that has changed it is news to me. i don't mix cards on the same board for folding because everytime i have tried regardless of what stanford says it has always lowered my ppd for the other card. so they can say it is fixed but ppd wise with mixed cards i say it is not fixed. I just tested my 9800gt with a 275 earlier today and i can confirm my 275 dropped down to 5 k ppd. half of what it was producing. shut the rig down pulled the 9800gt and my 275 ppd went back up. can someone else verify if his is fixed, because i can't seem to get it to work and if it does i got more cards that can be folding sitting here in boxs new. is there a update i missed somewhere? yes i am running some of the latest drivers 196.21 the rest after that are to unstable or too hot for me. i say not fixed but there may be something else others know that i don't. i don't always know every thing but i can tell you what my cards did today in mixed mode on the same board. I hope someone else can give a def answer here, and where as well as what fixed this if so.
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Full Metal Folder
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Re:How does 4x PCI-E slot affect folding?
2010/04/14 20:25:13
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heydabop
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Re:How does 4x PCI-E slot affect folding?
2010/04/14 20:42:38
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pgmoney Blizzie heydabop Full Metal Folder Blizzie pgmoney yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card. Does that mean I can't have a 480 with a 260 in the future? I was planning to get a 480 later and run it with two 260s. As far as i know the updated core version 1.31 took care of that problem. That's also what I've been hearing. Mixed card folding appears to work just fine now. Can anyone verify? I don't want surprises later.. if that has changed it is news to me. i don't mix cards on the same board for folding because everytime i have tried regardless of what stanford says it has always lowered my ppd for the other card. so they can say it is fixed but ppd wise with mixed cards i say it is not fixed. I just tested my 9800gt with a 275 earlier today and i can confirm my 275 dropped down to 5 k ppd. half of what it was producing. shut the rig down pulled the 9800gt and my 275 ppd went back up. can someone else verify if his is fixed, because i can't seem to get it to work and if it does i got more cards that can be folding sitting here in boxs new. is there a update i missed somewhere? yes i am running some of the latest drivers 196.21 the rest after that are to unstable or too hot for me. i say not fixed but there may be something else others know that i don't. i don't always know every thing but i can tell you what my cards did today in mixed mode on the same board. I hope someone else can give a def answer here, and where as well as what fixed this if so. Lalalalala, I'm not listening....dangit, didn't work. I really want to fold with my GTS 250 alongside my GTX 470.... Although, if I can fold on my GTX 470, they'll have to have a completely new, GPU3, core out. So maybe that will work well with mixed card systems, as they currently seem to be hit-and-miss right now.
post edited by heydabop - 2010/04/14 20:44:07
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Blizzie
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Re:How does 4x PCI-E slot affect folding?
2010/04/15 11:21:34
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