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redmist (OP)
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March 10, 2013, 07:42:41 AM |
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Hi guys, I'm currently trying to build a Bitcoin mining rig and I want to use 4 Radeon 5970's. So far I'm struggling to find any motherboards that have 1 PCI 2.1 port, let alone 4. Basically, do any of you know how to get these 4 gpu's mining at the same time for the cheapest price? e.g. Not 4 motherboards  Any help is appreciated! -redmist |
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dwaynep
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Activity: 32
Merit: 0
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March 10, 2013, 02:38:08 PM |
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crashoveride54902
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March 10, 2013, 03:30:18 PM |
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Hi guys, I'm currently trying to build a Bitcoin mining rig and I want to use 4 Radeon 5970's. So far I'm struggling to find any motherboards that have 1 PCI 2.1 port, let alone 4. Basically, do any of you know how to get these 4 gpu's mining at the same time for the cheapest price? e.g. Not 4 motherboards Any help is appreciated! -redmist you don't need pci 2.1 port...any pcie slot will do, this doesn't affect mining that much, if at all...you can even use pcie x1 slots if you have a pcie x1 extender.... |
Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks  |
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redmist (OP)
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March 10, 2013, 04:48:29 PM |
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Haha thanks for the help, but a bit too pricey for me  Oh okay, and I have another question. If i wanted x4 5970's, would they all run at the same speed? |
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vdragon
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March 10, 2013, 04:51:19 PM |
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I use Gigabyte B75-D3V, 4 pci slots, bought them for like 55 euro
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crashoveride54902
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March 10, 2013, 05:58:54 PM |
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Haha thanks for the help, but a bit too pricey for me Oh okay, and I have another question. If i wanted x4 5970's, would they all run at the same speed? for mining yes you'll get the same mh/s for all cards unless you sandwich them and you'll be getting high temps...bad for cards, so i suggest pcie extenders |
Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks |
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redmist (OP)
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March 10, 2013, 06:20:26 PM |
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Haha thanks for the help, but a bit too pricey for me Oh okay, and I have another question. If i wanted x4 5970's, would they all run at the same speed? for mining yes you'll get the same mh/s for all cards unless you sandwich them and you'll be getting high temps...bad for cards, so i suggest pcie extenders Okay, so using the motherboard that vdragon mentioned: Gigabyte B75-D3V If it has 4 PCI slots and I get a couple of extenders for it, I should get about 2800 mhash, as one gives about 700? |
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crashoveride54902
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March 10, 2013, 08:05:14 PM |
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yep you would only really need 2...one for slot 2,4 to rise them up and let slot 1,3 breathe...but you could also get 4 and just raise them all up and spread them apart...but that's all upto you...i had a 5970 that was on it's way out and it was getting 690mh/s total...have another 5970 in a bamt box and it's getting 728mh/s at 800mhz core clock... Haha thanks for the help, but a bit too pricey for me Oh okay, and I have another question. If i wanted x4 5970's, would they all run at the same speed? for mining yes you'll get the same mh/s for all cards unless you sandwich them and you'll be getting high temps...bad for cards, so i suggest pcie extenders Okay, so using the motherboard that vdragon mentioned: Gigabyte B75-D3V If it has 4 PCI slots and I get a couple of extenders for it, I should get about 2800 mhash, as one gives about 700? |
Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks |
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redmist (OP)
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March 10, 2013, 09:19:14 PM |
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Okay great! Thanks for the info. You seem like you know a fair bit about rigs, so I've got another question of anyone's willing to answer it.
Say I had 6 x 5850's. How would I get them to all mine at once seeing as most motherboards have maybe only 2 or 3 graphics slots?
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crashoveride54902
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March 10, 2013, 10:07:57 PM |
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some mobo's have 5 slots and 1 pcie x1 slot...some have 4 slots n 2 x1 slots...just have to find a mobo that has 6 slots and a psu that can handle that load but with the x1 slot you have to use extenders Okay great! Thanks for the info. You seem like you know a fair bit about rigs, so I've got another question of anyone's willing to answer it.
Say I had 6 x 5850's. How would I get them to all mine at once seeing as most motherboards have maybe only 2 or 3 graphics slots?
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Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks |
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vdragon
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March 10, 2013, 11:56:38 PM |
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Motherboards like MSI BigBang and some Asus Rampage borads have more than 4 slots. Altough (if you have watched my pictures), the max I use on single mobo is 3 cards, and thats recent, was 2 before that. Maybe it will be easier to manage if you dont go for more than 4. Also motherboards like BigBang cost a lot
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redmist (OP)
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March 11, 2013, 08:24:39 AM |
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Motherboards like MSI BigBang and some Asus Rampage borads have more than 4 slots. Altough (if you have watched my pictures), the max I use on single mobo is 3 cards, and thats recent, was 2 before that. Maybe it will be easier to manage if you dont go for more than 4. Also motherboards like BigBang cost a lot
Well I don't really want to buy a pricey motherboard, especially seeing as this is kind of a budget build. So is there any other way to get all 6 cards mining at once? I mean, there are people out there with 50 cards all mining at once on their super rigs Thanks for all the help guys by the way  |
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redmist (OP)
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March 11, 2013, 02:26:21 PM |
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Okay. So, I've decided finally that I'm gonna go for: x6 Radeon 5850's And this motherboard: http://www.gigabyte.com/products/product-page.aspx?pid=3880#ovBasically, as I'm still really unsure about a lot of this stuff, can any of you guys tell me if I can have 6 Radeon 5850's on this motherboard, and can anyone give me a step by step guide on how to get ALL SIX of them mining at the same time, at their optimum hash rates. Will give whoever can give me the best help a reward of some sort!! Really need help on this guys. I want to buy my hardware fairly soon, but I want to be 100% sure that everything will work, as this is a fairly big investment for me  |
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Rawted
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March 11, 2013, 03:08:14 PM |
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Okay. So, I've decided finally that I'm gonna go for: x6 Radeon 5850's And this motherboard: http://www.gigabyte.com/products/product-page.aspx?pid=3880#ovBasically, as I'm still really unsure about a lot of this stuff, can any of you guys tell me if I can have 6 Radeon 5850's on this motherboard, and can anyone give me a step by step guide on how to get ALL SIX of them mining at the same time, at their optimum hash rates. Will give whoever can give me the best help a reward of some sort!! Really need help on this guys. I want to buy my hardware fairly soon, but I want to be 100% sure that everything will work, as this is a fairly big investment for me I would highly suggest against putting 6 5850s on one board. Have you thought about cooling at all? split those 6 into 2 boards, drop that gigabyte board, grab an asrock at 1/2 the price. this one will do x8,x8,x4. http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262 . I have multiple 5830s and 5850s running, again i would not put 6 on a single board. Youre asking for problems, especially as a first timer who doesn't quite seem to understand it all. |
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redmist (OP)
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March 11, 2013, 04:01:30 PM |
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Okay. So, I've decided finally that I'm gonna go for: x6 Radeon 5850's And this motherboard: http://www.gigabyte.com/products/product-page.aspx?pid=3880#ovBasically, as I'm still really unsure about a lot of this stuff, can any of you guys tell me if I can have 6 Radeon 5850's on this motherboard, and can anyone give me a step by step guide on how to get ALL SIX of them mining at the same time, at their optimum hash rates. Will give whoever can give me the best help a reward of some sort!! Really need help on this guys. I want to buy my hardware fairly soon, but I want to be 100% sure that everything will work, as this is a fairly big investment for me I would highly suggest against putting 6 5850s on one board. Have you thought about cooling at all? split those 6 into 2 boards, drop that gigabyte board, grab an asrock at 1/2 the price. this one will do x8,x8,x4. http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262 . I have multiple 5830s and 5850s running, again i would not put 6 on a single board. Youre asking for problems, especially as a first timer who doesn't quite seem to understand it all. Well to be honest it's gonna be in my garage and it's really cold in there haha we also have multiple fans :p So if I had two mobos and 3 cards on each, how do I get them both to mine with the combined hash rate? I want to have the same hash rate as I would if I had 6 cards on one motherboard. |
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Rawted
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March 11, 2013, 04:30:08 PM |
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Okay. So, I've decided finally that I'm gonna go for: x6 Radeon 5850's And this motherboard: http://www.gigabyte.com/products/product-page.aspx?pid=3880#ovBasically, as I'm still really unsure about a lot of this stuff, can any of you guys tell me if I can have 6 Radeon 5850's on this motherboard, and can anyone give me a step by step guide on how to get ALL SIX of them mining at the same time, at their optimum hash rates. Will give whoever can give me the best help a reward of some sort!! Really need help on this guys. I want to buy my hardware fairly soon, but I want to be 100% sure that everything will work, as this is a fairly big investment for me I would highly suggest against putting 6 5850s on one board. Have you thought about cooling at all? split those 6 into 2 boards, drop that gigabyte board, grab an asrock at 1/2 the price. this one will do x8,x8,x4. http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262 . I have multiple 5830s and 5850s running, again i would not put 6 on a single board. Youre asking for problems, especially as a first timer who doesn't quite seem to understand it all. Well to be honest it's gonna be in my garage and it's really cold in there haha we also have multiple fans :p So if I had two mobos and 3 cards on each, how do I get them both to mine with the combined hash rate? I want to have the same hash rate as I would if I had 6 cards on one motherboard. That doesnt matter. There is no benefit to loading more cards in one PC, and only drawbacks (power, space, heat). If you're talking about doing a crossfire/sli setup, that actually lowers your output. You wont find a single pro gpu farm miner that has their amd's crossfired. |
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redmist (OP)
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March 11, 2013, 04:53:08 PM |
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1. Okay, so I could have two motherboards with 3 cards on each?
2. Would I need 2 separate accounts on a mining pool to do this?
3. How can I have two motherboards on one machine?
Cheers
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Rawted
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March 11, 2013, 05:15:26 PM |
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1. Okay, so I could have two motherboards with 3 cards on each?
2. Would I need 2 separate accounts on a mining pool to do this?
3. How can I have two motherboards on one machine?
Cheers
1. yes 2. no, mining pools operate off of workers. you would simply setup an additional worker (or not, if you dont mind the stats being combined) 3. you cant, you would need two separate cases, mobos, cpus, sticks of ram, psus, and some form of hard drive (whether old ide, newer sata, or a simple usb drive to load up something lightweight on boot like xubuntu or mint). |
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redmist (OP)
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March 11, 2013, 05:28:35 PM |
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1. Okay, so I could have two motherboards with 3 cards on each?
2. Would I need 2 separate accounts on a mining pool to do this?
3. How can I have two motherboards on one machine?
Cheers
1. yes 2. no, mining pools operate off of workers. you would simply setup an additional worker (or not, if you dont mind the stats being combined) 3. you cant, you would need two separate cases, mobos, cpus, sticks of ram, psus, and some form of hard drive (whether old ide, newer sata, or a simple usb drive to load up something lightweight on boot like xubuntu or mint). 1.Okay. So it'll be more expensive to build as I would need two machines, but the fact I'm not getting the $200 mobo should balance it out a bit? 2.Right. But if I have 2 workers mining at 1000mhash each, will my profits me the same as if I had one mining at 2000? 3.Okay that's fine |
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Rawted
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March 11, 2013, 05:34:21 PM |
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1. Correct. Although, if you're concerned with cost - i wonder how you came to choose 5970s - 6 of them will run you around $2k alone on Ebay, used. They're excellent cards, and probably the top hashrate out there, but they use more power, and have an increased base cost. Hope you figured this into your equations.
2. Yes, it doesn't matter. You're not being paid on your mining hash rate, you're being paid on the value of the estimated amount of shares you will get from that hash rate.
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