wetjet43 (OP)
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April 11, 2013, 05:11:26 AM |
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I've been handed $4,000 and asked to build a mining rig. If you had to spend somebody elses money to build a rig, and share 50% of the profits for your time, and not have to worry about power, what would you build? I like shopping on newegg, but I always check amazon and other places for a better deal.
I really wanted to get a butterfly labs 50 GH/s asic miner, but I'm not about to fork over somebody elses money and say we'll get the product in a year, if at all.
Do I go for 7970, or a 7950 GPU? Do I put 3 GPU's on a single motherboard, or build 3 single GPU miners? I know the CPU and memory aren't important, as a celeron will work just fine on 2 gigs of memory.
I'm mainly looking for advise on the GPU, motherboard, Power and what OS to run it on (win or linux?)
Thanks!
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Uliena
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April 11, 2013, 07:14:39 AM |
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I would suggest on getting http://www.msi.com/product/mb/990FXA-GD80.html (I have this one with 3 7950's). Look for 80+ gold powersupply with over 1 kW (I have corsair AX1200[had it prior]).
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Catanonia
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April 11, 2013, 01:36:21 PM |
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For 4K I reckon you could get 3 rigs built with 3 7950 each cards in. Maybe 4 rigs at a squeeze using cheaply found kit.
Each card on bitcoin should give you 550mhashes or there abouts.
So 9 x 550 = about 5Ghashes or 12 x 550 = 6.6 Ghashes
not to shabby, but pricey at 4k
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ryantc
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Bitcoin may be the TCP/IP of money.
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April 11, 2013, 08:01:54 PM |
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3 7950s can run on a 850-1000 PSU,80+ gold or above PSU is pricey and money is wasted when you don't need that extra.
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middlemarkal
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April 11, 2013, 10:04:02 PM |
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I've been handed $4,000 and asked to build a mining rig. If you had to spend somebody elses money to build a rig, and share 50% of the profits for your time, and not have to worry about power, what would you build? I like shopping on newegg, but I always check amazon and other places for a better deal. I really wanted to get a butterfly labs 50 GH/s asic miner, but I'm not about to fork over somebody elses money and say we'll get the product in a year, if at all. spend 2000 for gpu rig and 2000 on bflDo I go for 7970, or a 7950 GPU? Do I put 3 GPU's on a single motherboard, or build 3 single GPU miners? 3 7950 cards [on one mobo to reduce the price of the over head cheap ram and cpu/color] I know the CPU and memory aren't important, as a celeron will work just fine on 2 gigs of memory.
I'm mainly looking for advise on the GPU, motherboard, Power and what OS to run it on (win or linux?)7950 gigabyte with 3 fans they are great, open air case with riser, mobo with 3 pcie*16 and the pcie*1 to expand later, linux is a bit more performan but much more complicated then Windows
Thanks!
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wetjet43 (OP)
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April 12, 2013, 08:48:19 PM |
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It's only got pci-e 2.0 slots. Won't I get better performance out of a 3.0 slot? Thanks!
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baad
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April 12, 2013, 09:50:35 PM |
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It's only got pci-e 2.0 slots. Won't I get better performance out of a 3.0 slot? Thanks! No, 2.0 is enought.
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wetjet43 (OP)
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April 12, 2013, 09:57:23 PM Last edit: April 12, 2013, 10:12:42 PM by wetjet43 |
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It's only got pci-e 2.0 slots. Won't I get better performance out of a 3.0 slot? Thanks! No, 2.0 is enought. So there's zero performance gain from going with a pci-e 3.0 motherboard over a pci-e 2.0 motherboard? This will save me some money if so. I haven't ran an amd processor since my old k62-450!
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crazyates
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April 13, 2013, 12:34:13 AM |
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3x 890FXA-GD70 - $400 used 3x Any low end Athlon II - $100 used 3x 2GB sticks of DDR3 RAM - $60 new 3x Sandisk 8GB USB drives - $30 new 3x Seasonic X-1050 - $650 new
That leaves ~$2800 for GPUs.
9 GPUs (3 per rig) - 7950s (9x 500MH/s) = 4.5GH/s 12 GPUs (4 per rig) - 7870s (12x 400MH/s) = 4.6GH/s
I would recommend the fewer but faster GPUs, as they're less to hassle with.
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meebs
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April 13, 2013, 01:11:15 AM |
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For 4K I reckon you could get 3 rigs built with 3 7950 each cards in. Maybe 4 rigs at a squeeze using cheaply found kit.
Each card on bitcoin should give you 550mhashes or there abouts.
So 9 x 550 = about 5Ghashes or 12 x 550 = 6.6 Ghashes
not to shabby, but pricey at 4k
i just built a rig with 2x gigabyte 7950's (the $300 model on newegg.. rev 2.0) does 630 mhash and 670+ khash (scrypt mining) rock solid and a beast. DOES NOT UNDERVOLT, however. this is a card for balls to the walls mining, not undervolting/low heat applications.
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crazyates
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April 13, 2013, 01:14:48 AM |
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i just built a rig with 2x gigabyte 7950's (the $300 model on newegg.. rev 2.0)
does 630 mhash and 670+ khash (scrypt mining)
rock solid and a beast.
DOES NOT UNDERVOLT, however. this is a card for balls to the walls mining, not undervolting/low heat applications.
630MH/s per card, or for both combined?
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computerparts
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April 13, 2013, 02:19:45 AM |
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4K on a gpu rig? Lol waste that money away.
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wetjet43 (OP)
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April 13, 2013, 02:38:10 AM |
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4K on a gpu rig? Lol waste that money away.
Correction, 4k on 3 gpu rigs with 3 9750 gpu's each.
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LouReed
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April 13, 2013, 03:11:00 AM |
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That GPU on newegg is out of stock. Did you buy the last of them, or find em someplace else?
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Marrs
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April 13, 2013, 04:05:35 AM |
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I haven't decided yet on the OS yet. Any pro's or con's to using either with CGMiner?
Driver support is better on Windows. On the other hand, Linux is free.
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crazyates
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April 13, 2013, 04:39:18 AM |
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I haven't decided yet on the OS yet. Any pro's or con's to using either with CGMiner?
Driver support is better on Windows. On the other hand, Linux is free. In general, Win will have butter support for almost anything compared to linux. For me, I can set up a Win miner in prolly 30 min after the OS is installed. Linux might take a lil longer, but I think it's a better and more customizable miner.
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wetjet43 (OP)
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April 13, 2013, 05:27:15 AM |
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That GPU on newegg is out of stock. Did you buy the last of them, or find em someplace else? I actually ordered mine from SuberBiiz. They didn't have 6 of them in stock, but they let me place a back order. They'll ship out in about a week. http://www.superbiiz.com/detail.php?name=MSI-7950TF
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wetjet43 (OP)
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April 13, 2013, 05:28:44 AM |
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I haven't decided yet on the OS yet. Any pro's or con's to using either with CGMiner?
Driver support is better on Windows. On the other hand, Linux is free. In general, Win will have butter support for almost anything compared to linux. For me, I can set up a Win miner in prolly 30 min after the OS is installed. Linux might take a lil longer, but I think it's a better and more customizable miner. Thanks crazy. I'll keep this in mind.
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