10 - 15k in mining equipment - page 2.

xf2_org

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Quote from: SgtSpike on May 01, 2011, 11:22:54 PM

The cost of a single 5970 is more than the PC + 5850's combined. I don't see any money-savings there. If you buy two 5970's and put them in the $250 base computer, you'll spend $1550 and get about 1200 MH/s. If you buy two 5850's and put them in the $250 base computer, you'll spend $550 and get nearly 600 MH/s.

Sorry, 5850's still win the performance/price contest.

I do not see any mention of power efficiency in that calculation.

SgtSpike

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Quote from: [Tycho] on May 01, 2011, 11:13:45 PM

Quote from: SgtSpike on May 01, 2011, 11:08:28 PM

I'd go for AM3 sempron rigs with 1GB ram, Corsair 650W PSU, random mobo (whatever's cheap and has two PCIe x16 slots), $20 ATX case, and recertified HDD. Then add two 5850's. Total cost should be about $550/machine, and it'll give you more mhash/price than anything else you can build. Just build as many of them as you want to spend money on, and use some form of Linux for the mining setup.

2x5850 per case is VERY bad configuration. You'll need 0.5 PC per each GPU.
With 2x5970 you'll need only 0.25 PC per GPU, that's very noticeable difference.

The cost of a single 5970 is more than the PC + 5850's combined. I don't see any money-savings there. If you buy two 5970's and put them in the $250 base computer, you'll spend $1550 and get about 1200 MH/s. If you buy two 5850's and put them in the $250 base computer, you'll spend $550 and get nearly 600 MH/s.

Sorry, 5850's still win the performance/price contest.

[Tycho]

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Quote from: SgtSpike on May 01, 2011, 11:08:28 PM

I'd go for AM3 sempron rigs with 1GB ram, Corsair 650W PSU, random mobo (whatever's cheap and has two PCIe x16 slots), $20 ATX case, and recertified HDD. Then add two 5850's. Total cost should be about $550/machine, and it'll give you more mhash/price than anything else you can build. Just build as many of them as you want to spend money on, and use some form of Linux for the mining setup.

2x5850 per case is VERY bad configuration. You'll need 0.5 PC per each GPU.
With 2x5970 you'll need only 0.25 PC per GPU, that's very noticeable difference.

SgtSpike

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I'd go for AM3 sempron rigs with 1GB ram, Corsair 650W PSU, random mobo (whatever's cheap and has two PCIe x16 slots), $20 ATX case, and recertified HDD. Then add two 5850's. Total cost should be about $550/machine, and it'll give you more mhash/price than anything else you can build. Just build as many of them as you want to spend money on, and use some form of Linux for the mining setup.

I did a lot of excel analysis to come up with 2x 5850's in each rig being the best configuration. It's not the best as far as wattage is concerned, but it is VERY close to the best. Within 10% of the most efficient config. I figure the cost savings of initial purchase outweighs the 10% extra wattage used.

Current-C

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JJG,

I haven't come to the conclusion that it is a worthwhile investment yet --I'm just trying to figure out what the best hardware configuration might be so I can do a cost-benefit analysis. I have some cost saving advantages in cooling/electricity/space that may make it worthwhile, may not.

JJG

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Quote from: Current-C on May 01, 2011, 08:51:13 PM

Hey all,

Mining noob here just wanted some expert opinions on what kind of equipment people would buy if they had 10-15k to spend on a new setup. What cards would you buy? Are towers ok or is a rack preferable? Should you run them in crossfire or individually? I know the economics of mining are controversial so I'm just trying to gather more info on the subject.

Thanks!

So I have to ask: What calculations / projections did you run that made a five-figure hardware investment worthwhile?

tomcollins

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Quote from: Current-C on May 01, 2011, 08:51:13 PM

Hey all,

Mining noob here just wanted some expert opinions on what kind of equipment people would buy if they had 10-15k to spend on a new setup. What cards would you buy? Are towers ok or is a rack preferable? Should you run them in crossfire or individually? I know the economics of mining are controversial so I'm just trying to gather more info on the subject.

Thanks!

Buy 15k of bitcoins.

Current-C

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Noise and heat shouldn't be an issue since if I were to build this I'd be running it in a warehouse -- possibly even in a walk in cooler. I'm trying to minimize the amount of extra equipment I'd have to buy i.e. cases, processors, memory etc. Are there motherboards that can run four or five cards? Right now I'm thinking three to five towers with three 6990's each . . . any other specific hardware recommendations?

chungenhung

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I would get 5850 or lower end.
Yes, the high end cards will give you more power, but it will be a pain to manage the heat, power, and NOISE!

I've built multi-GPU platforms in the past, and come to realize never get the highest performing card. Always get something that is not too hot, too power hungry, or too big.

niooron

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As many Radeon 6990s you can fit on the cheapest AMD Sempron motherboards. Also quality power supplies.

Current-C

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Activity: 124

Merit: 100

Hey all,

Mining noob here just wanted some expert opinions on what kind of equipment people would buy if they had 10-15k to spend on a new setup. What cards would you buy? Are towers ok or is a rack preferable? Should you run them in crossfire or individually? I know the economics of mining are controversial so I'm just trying to gather more info on the subject.

Thanks!

Topic: 10 - 15k in mining equipment - page 2. (Read 5178 times)