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I wouldn't recommend it. In a dual PSU setup, the PSU that just powers the VGA power inputs uses more power than the main PSU powering the motherboard, all of the risers and accessories. A 500W PSU also won't have all the PCI-E or SATA cables you need for all the GPU's. I would recommend getting at least a 750W PSU for the GPU's and a 650W for the motherboard. That should give you enough power for up to six cards and all the connectors you need. Just make sure it's at least a gold rated PSU from a good brand like EVGA or Corsair.
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...and even (slightly) faster with 5x 1080. And you'd still have slots available to add cards to your rig at a later stage.
And for about the cost of two more 1080 Ti's you could build a second 1060 rig with six cards, another motherboard, PSU etc, have more hash, more options to mine and a faster ROI than adding two 1080 Ti cards. An eight card 1070 rig would also give you the same hash on Equihash than five 1080Ti's and 65 H/s more on ETH for about $500 less. That's why I said the only reason to buy a 1080 Ti is if you want to maximize the total hash for a couple of rigs and don't care about the cost of the cards. |
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No contest the 1070 is easily the best hash/cost all around performer from Nvidia GTX 10 series GPU's, especially on ETH.
108ti - 37 MH/s
1070 - 31-32 MH/s
1080 - 25 MH/s
1060 - 22 -23 MH/s.
The only reason to buy a 1080ti is if you want to maximize the total hash from a couple of rigs and don't care what you pay per GPU.
lol on ETH yes, but you don't mine ETH with nvidia, you mine zen or zcash or zcashclassic or lbry, and the 1080ti is very good there 60-70% faster than a 1070, 1060 is abd overall bad density very low ahshrate, bad efficiency Not true at all. The hash per cost efficiency of a 1060 is much better than a 1080 Ti. At 60% TDP the GTX 1060 3GB cards do 260 H/s on Equihash using 60 W each and only need a single 8-pin connector. At a cost of $200 each that's 0.77 cents per hash. On Equihash the 1080 Ti does 750 H/s at 250W and at $700 each, that's 0.93 cents per hash. Three 1060 3GB cards would do 810 H/s using 180W, outperforming and costing less than a single $700 1080 Ti. With the three 1060's you also have the option of mining ETH at 65 MH/s for 3 cards vs 37 MH/s for a 1080 Ti. https://www.youtube.com/watch?v=1uhSfOpvHks&feature=youtu.be&t=7295You're forgetting one thing. The 1060's are weaksauce, so you need many of them, hence need for more mobos, PSUs, CPUs etc etc. You need to break down the costs of extra hardware too, you know. You can easily run nine 1060's off a single 1000W PSU at 60 - 70% TDP and 2-3 cards per PCI-E cable on ethOS, smOS or Linux. Add a $160 Asus Z270-AR/ A board, two $5 M.2 to PCI-E adapters and for less than $2500, the rig would give you 2300 H/s for nine cards on Equihash and 207 MH/s on ETH. To get the same amount of hash on Equihash from a 1080 Ti, you would need three cards for at least $2100 just in cards and still need a 1000W PSU, mobo and cpu. The only other added cost for 1060 rig would be more risers and you would make your ROI faster with the nine card 1060 rig. |
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What OS? Windows 7 only works with up to 5 unless you patch it.
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No contest the 1070 is easily the best hash/cost all around performer from Nvidia GTX 10 series GPU's, especially on ETH.
108ti - 37 MH/s
1070 - 31-32 MH/s
1080 - 25 MH/s
1060 - 22 -23 MH/s.
The only reason to buy a 1080ti is if you want to maximize the total hash from a couple of rigs and don't care what you pay per GPU.
lol on ETH yes, but you don't mine ETH with nvidia, you mine zen or zcash or zcashclassic or lbry, and the 1080ti is very good there 60-70% faster than a 1070, 1060 is abd overall bad density very low ahshrate, bad efficiency Not true at all. The hash per cost efficiency of a 1060 is much better than a 1080 Ti. At 60% TDP the GTX 1060 3GB cards do 260 H/s on Equihash using 60 W each and only need a single 8-pin connector. At a cost of $200 each that's 0.77 cents per hash. On Equihash the 1080 Ti does 750 H/s at 250W and at $700 each, that's 0.93 cents per hash. Three 1060 3GB cards would do 810 H/s using 180W, outperforming and costing less than a single $700 1080 Ti. With the three 1060's you also have the option of mining ETH at 65 MH/s for 3 cards vs 37 MH/s for a 1080 Ti. https://www.youtube.com/watch?v=1uhSfOpvHks&feature=youtu.be&t=7295 |
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8 GPUs Asus Z270-P
9 GPUs Asus Z270-A, Z270-AR
9 GPUs on a Z270-AR? How?? Just took this from their website Expansion Slots 1 x PCIe 3.0/2.0 x16 (x16 or dual x8) 1 x PCIe 3.0/2.0 x16 (max at x4 mode) 4 x PCIe 3.0/2.0 x1 Storage 1 x M.2 Socket 3, , with M Key, type 2242/2260/2280/22110 storage devices support (SATA mode & X4 PCIE mode)*1 1 x M.2 Socket 3, , with M Key, type 2242/2260/2280 storage devices support (PCIE mode only)*2 The PRIME Z270-AR has 7 PCI-E slots. You need to add two M.2 to PCI-E expansion adapters to get 9 cards. https://www.asus.com/us/Motherboards/PRIME-Z270-AR/specifications/https://www.youtube.com/watch?v=DR-FkpU2KfI |
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The only cards available with my shop right now are:
MSI Geforce GTX 1070 Quick Silver 8G OC
EVGA GeForce GTX 1070 FTW GAMING ACX 3.0
MSI GTX 1070 ARMOR 8G
I believe the best one is the EVGA, but the max power draw is 215W, so that's way too much.
I thinking of the MSI Armor one, simply because it's 50 dollars cheaper than the other MSI.
Anyone have any opinions on those cards?
Thanks
Nvidia cards work well with a TDP of 60% - 70% without a noticeable drop in hash. You can lower the TDP on Nvidia cards using MSI Afterburner or EVGA precision. The MSI Armor series are the the basic no-frills pieces from MSI. No backplate, aluminum heat pipes, open frame dual-fan design and they run hotter than other cards. I would go with the cheaper one between the other two cards, they are about the same. |
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ASRock Fatality Z97X Killer LGA 1150 board works with 6 cards on risers in Windows 10. Can only get 5 to show up in Windows 7 (Code 43 on the 6th). Set all three PCI-E x16 slots to GEN 1 in Bios. Haven't tried adding the M.2 slot PCI-E adapter yet.
You need enable "Above 4G" or lower TOLUD. The board Bios doesn't have that option. It's a limitation with Windows 7 that can't recognize more than 5 GPU's. There is a patch, but it won't boot in to Windows using the latest drivers. https://bitcointalk.org/index.php?topic=712228.0 |
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No contest the 1070 is easily the best hash/cost all around performer from Nvidia GTX 10 series GPU's, especially on ETH.
108ti - 37 MH/s
1070 - 31-32 MH/s
1080 - 25 MH/s
1060 - 22 -23 MH/s.
The only reason to buy a 1080ti is if you want to maximize the total hash from a couple of rigs and don't care what you pay per GPU.
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You need to get a PSU that has enough PCI-E connectors. Typically PSU's >750W will have at least four PCI-E connectors. Make sure it's at least Gold rated.
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$200 for a 1070 seems too cheap. If it's legit buy as many as you can!
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Memory size does affect dual mining performance if there is innsufficient VRAM after the Dag. With the current Dag size, only 3 GB cards have signinficantly lower hash when dual mining. I have RX 580/480 8 GB cards and also RX 570 4 GB cards and the performance difference on dual mining with DCR is less than 3% between the two.
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my 7850 is doing 160 h/s @ 1100 core and 1300 memory i think its rather high  My Powercolor HD 7850 does 195 -198 H/s on ZEC. Core clock 1240 Memory clock 1500. |
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ASRock Fatality Z97X Killer LGA 1150 board works with 6 cards on risers in Windows 10. Can only get 5 to show up in Windows 7 (Code 43 on the 6th). Set all three PCI-E x16 slots to GEN 1 in Bios. Haven't tried adding the M.2 slot PCI-E adapter yet.
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Except that it's not. The time to recover the cost of the card on the same Equihash coin is 61 days for a $750 1080 Ti that produces 750 H/s vs 41 days for a $200 RX 470 4 GB card that produces 300 H/s on Equihash.
Might have been true a month ago, but try finding ANY RX 470/480/570/580 for less than $500 or so TODAY. If you can find them at all. Per all the reports I've seen, the odds are looking good that the current "shortage" and resulting gouge pricing may last MONTHS on AMD RX 570/580 cards (and the 470/480 is out of production of course). To be fair though, $200 a month ago was kinda HIGH for a 300 sol/s RX 470 4GB - I paid more like $350 for my PAIR a few months back, though they were on sale at the time. 750 sol/s seems low for a 1080 ti from the figures I've seen reported, unless you're running it at VERY high efficiency settings - at which point it's probably using 50-70% of the watts/sol of that RX 470. Can't just compare $/sol, watts/sol adds up over time too, especially if you run a rig more than a few months and DOUBLE especially if you don't have SUPER CHEAP POWER cost. The profit calculation takes into account the power used by the card, 125W for a 470 and 250W for a 1080 Ti. 750 H/s is actually better than the 710 H/s BBT got on a 1080 Ti on ZEC using the Nicehash miner and the card was using 250W. https://youtu.be/9W3W1YAavSE?t=1402Don't believe everything you read on the internet. The RX 580 and 570's have been available in limited quantites, they do sell out quick though. BBT has built several rigs for his livestream with the cards he's bought and I have four Powercolor Red Dragon RX 570 4GB's that I bought for $190 each being delivered tomorrow. Those four cards that I bought for a total of $760 will do 1200 H/s on Zcash, using ~500W, no comparison to a 1080 Ti that costs roughly the same for 60% of the hash of the 470's. Name a coin and algorithm and I bet the results will be similar. I'm not going by "what I read on the internet" for pricing. I'm going by pricing QUOTED on cards that are "in stock" by major sellers like Newegg, Frys, Tiger Direct, Amazon - WHEN you can find any available at all. Yes, if you can find RX 470/480/570/580 cards at close to MSRP they'll hit ROI quick - but I think you underestimate Nvidia as well on ROI, do NOT assume "ETH" or even "ZEC" as the most profitable Nvidia options. Tradeoff on your 570s is the power useage - for someone with high power costs, the DOUBLE or more power used will eat a chunk of the extra gross income - and if you factor on a SYSTEM level, you're going to need 4 times as many systems which makes the cost comparison quite a bit closer (the 570s will still win on a $/sol basis but by quite a bit LESS than 2:1, while the power comparison gets worse). If you run the skein or groetsl coins, for most of the last month profitability has been 30-50% higher than ZEC has been for higher-end NVidia cards - and all of a sudden they're pulling in VERY close to the same gross income as your 4 x 570s are. Nicehash uses Claymore for ZEC, EBWF is faster than Claymore on recent versions - I grant it's not by a ton, but it does seem to be a 5-10% difference on the GTX 1070 and 1080 cards I've done my testing on at the same settings. I'm not going to go into *what* I'm running my NVidia farm on - but I will state that I made a LOT more on what I'm doing than I would have by running the farm on ZEC - ballpark estimate 50-70% range. However, that's in a situation that has a VERY small "total network hashrate" that HAS gone up noticeably over the last 2 months, so I'm not sure if the profitability will remain elevated over all other options for another month. I'll just say that the folks justifiably bragging about their skein-based coin profits last month didn't do quite as well as I did - even though they DID do quite a bit better than ZEC would have done them. Here is a benchmark from someone with 11 1080 Ti's using the latest EWBF miner: https://bitcointalk.org/index.php?topic=1733240.msg19526208#msg19526208731 - 762 H/s using 275W each. The 750 H/s at 250W that I used is a good representation of what someone with a $700 1080 Ti can expect on Equihash. I never said Zec was the most profitable coin for Nvidia. The other poster said ZEN, another Equihash coin was the most profitable coin for Nvidia. What I showed was "Dollar for dollars the 1080 TI is actually equal or better than RX 4xx/5xx cards": is nonsense. The RX 470 does ~40% better in hash per cost. Even at 0.25 / kW the return on a $200 RX 470 4 GB is 18 days LESS than a $700 1080 Ti on Equihash. http://whattomine.com/coins/185-zen-equihash?utf8=%E2%9C%93&hr=750&p=250&fee=0.0&cost=.25&hcost=700&commit=Calculatehttp://whattomine.com/coins/185-zen-equihash?utf8=%E2%9C%93&hr=300.0&p=150.0&fee=0.0&cost=0.25&hcost=200&commit=CalculateI'm also waiting on you to name an algorithm so I can show you the RX 570 4GB is a much better card for mining than a $700 1080 Ti for just about any coin. The fact that I can walk in to any Best Buy and buy as many 1080 Ti's as I want, while finding a RX 570 without getting gouged is like hen's teeth should make that fact obvious enough. |
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I wouldn't go with the GTX 1080. The GTX 1070 is a better card for the money and will outperform the 1080 on ETH. I have a MSI GTX 1080 GAMING X and only get ~25 MH/s on ETH. The GTX 1070 can get ~31 MH/s.
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The MSI Armor is the basic no-frills piece from MSI. No backplate, aluminum heat pipes and a open frame dual-fan design. The cards tend to run hotter than other 570's and it probably has cheaper VRAM, but it should work about the same as other 4GB 570's, ~27 - ~28 MH/s on ETH.
Any guide to getting that hash? I have Sapphire Red Dragon RX 570 that only do 21 Sapphire doesn't make a Red Dragon RX 570 card, that is a Powercolor RX 570. You have to mod the the memory timings in the bios and overclock the memory to ~1900 MHz. That should get you to ~27 - 29 MH/s depending on the card an the memory brand it uses. The Powercolor Red Dragon RX 570's 4GB can get to ~29 MH/s with a memory timing mod. https://www.youtube.com/watch?v=VC3WQLEDZN0&feature=youtu.be&t=7074 |
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The MSI Armor is the basic no-frills piece from MSI. No backplate, aluminum heat pipes and a open frame dual-fan design. The cards tend to run hotter than other 570's and it probably has cheaper VRAM, but it should work about the same as other 4GB 570's, ~27 - ~28 MH/s on ETH.
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Except that it's not. The time to recover the cost of the card on the same Equihash coin is 61 days for a $750 1080 Ti that produces 750 H/s vs 41 days for a $200 RX 470 4 GB card that produces 300 H/s on Equihash.
Might have been true a month ago, but try finding ANY RX 470/480/570/580 for less than $500 or so TODAY. If you can find them at all. Per all the reports I've seen, the odds are looking good that the current "shortage" and resulting gouge pricing may last MONTHS on AMD RX 570/580 cards (and the 470/480 is out of production of course). To be fair though, $200 a month ago was kinda HIGH for a 300 sol/s RX 470 4GB - I paid more like $350 for my PAIR a few months back, though they were on sale at the time. 750 sol/s seems low for a 1080 ti from the figures I've seen reported, unless you're running it at VERY high efficiency settings - at which point it's probably using 50-70% of the watts/sol of that RX 470. Can't just compare $/sol, watts/sol adds up over time too, especially if you run a rig more than a few months and DOUBLE especially if you don't have SUPER CHEAP POWER cost. The profit calculation takes into account the power used by the card, 125W for a 470 and 250W for a 1080 Ti. 750 H/s is actually better than the 710 H/s BBT got on a 1080 Ti on ZEC using the Nicehash miner and the card was using 250W. https://youtu.be/9W3W1YAavSE?t=1402Don't believe everything you read on the internet. The RX 580 and 570's have been available in limited quantites, they do sell out quick though. BBT has built several rigs for his livestream with the cards he's bought and I have four Powercolor Red Dragon RX 570 4GB's that I bought for $190 each being delivered tomorrow. Those four cards that I bought for a total of $760 will do 1200 H/s on Zcash, using ~500W, no comparison to a 1080 Ti that costs roughly the same for 60% of the hash of the 470's. Name a coin and algorithm and I bet the results will be similar. |
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