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Dual PCI-E 6-pin power connectors is odd, and the "right angle" MOLEX IMO is a pain compared to a straight-in one in that position.
Never heard of "ver 009" on a riser before - might be an enhancement of VER 008, might be advertising bragging only.
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The heatskinks are seriously overkill for the wattage used by the Gridseed 80 - you could probably get away with a 10 CFG fan (if they exist in 92 mm).
I put some of my old NFB fans on a couple of these - ballpark 40-50 cfm rated - with ZERO overheating issues other than the usual "power conversion circuitry is poorly cooled" problem.
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Run the Nicehash Legacy miner "benchmarks" is a fairly good place to start to figure out hashrates on most common algorithms.
Tweeking tends to be somewhat coin specific and often card specific.
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so what's this nicehash deal - they aren't going to pay the old balances unless they are .1btc or they just aren't paying the new balances until the balance reaches .1btc?
They said they are paying everyone the end of Jan. Don't think they had a minimum balance stipulation for owed balances from the theft. The new minimum balances were put in place so they don't have to pay the crazy transaction fees while they work with coinbase to secure some kind of deal to avoid fees altogether. No, they said they will have an ANNOUNCEMENT on January 31 about when funds will be repaid. Part 4, 3'd paragraph, in https://www.nicehash.com/attack-learn-more |
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BCH? BCH?  ? *********************BASH!!!!!!!!!!!!!!!!!!!!!!******************** |
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The (currently shut down) Alcoa Aluminum plant near Wenatchee WA has a power contract with the Chelan PUD that allowed them to use appx. 660 Megawatts of power from the 2 Chelan PUD major Columbia River hydropower dams.
660 MEGAwatts = ballpark 500 THOUSAND S9 units.
That's a lot of potential CLEAN POWER that could have been feeding a ton of hashpower (the plan was idled a little while back, but Alcoa is still on the hook for the charges related to that power under the terms of the contract).
I have no idea where that power is going now, due to the terms of the contract Alcoa "owns" it but is NOT allowed to resell it.
It would be interesting if someone like Bitfury or Caanan were to make an offer to buy out that plant - contract included - but I doubt they want to assume the existing liability ($45+ million owed per the last news I saw on it) associated with that contract.
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To all those talking about the PSUs, I never said go with a mining company cheapo PSU. I have personally experienced near 30% out of the box failure rates on Bitmain PSUs.
When you mine as a business or as your sole source of income, ancillary costs are very important to keep low.
EVGA 1600w 80+ Platinum PSU is $450
HP Server 80+ Platinum 2250-2450watt PSU can be had for around $60 and requires about $15 in cables and solder.
You are talking $50k in ATX to run 120 units versus under $10k
In the mining game you dont ever sell off your PSUs, you reinvest in newer hardware that can run off the same PSU as the old stuff. And since you have a PSU with 850w more power you have the flexibility to do things like run two Avalons off of one PSU thus cutting costs even more. Ill take my 60-65% loaded PSU right in its efficiency curve over an ATX PSU running at 90% load working much harder any day.
It would be a little more fair to compare to a pair of 850 watt PS at more like $300 on the ATX side - but the server power supplies still win the battle of economics *IF YOU ARE SURE YOU WILL BE MINING FOR SEVERAL YEARS*. Or even reasonably sure. On the other hand, when you already HAVE spare ATX power supplies, they win the economics battle as the have zero cost. 9-) |
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can anyone help when i try to use DSTM miner with EthControl i get Mining Software API not Responsive when i have enabled telemetry and its working
this is fom the log file
DSTM Exception: One or more errors occurred.
Mining software API not responsive..
and then restarts the miner
No response from API in 320 seconds, restarting miner.
That sounds like a DSTM configuration issue, and should be asked in that thread. |
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Motherboard + CPU + RAM + SSD/HD will soak commonly 50-100 watt range depending on the details - more if you're using a high wattage CPU for some reason.
The power to the risers is for the power the GPU draws from the PCI-E bus, and is part of the total power draw of the GPU (plus a few watts for conversion inefficiency in the voltage conversion circuitry of the riser itself).
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Seems odd that 2016 was supposedly that low, I distincly remember having to go quite a bit higher than "sub $1" on transaction fees a year ago.
Definitely nowhere near the $25 ballpark I saw for my only "holiday period" transaction THIS YEAR though - think it was more like $5 and THAT seemed high at the time.
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Ah, it's a "GQ" thing then - I've never used that line due to the "fancy name junk sleeve bearing fan" they use.
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How do you tell PCI-E 6-pin with *2* vs *3* +12VDC, do I count the yellow cables? (the black ones are ground cable?)
I'm in the middle of a getting a single Seasonic 1300W PSU to hopefully power 6 rx580s... anything to watch out for?
It's hard sometimes - but oftentimes one of the leads on the +12VDC side will be brown, other times it'll be smaller gauge, other times there is just no way to tell because they used all the same wires for "economy of scale in purchasing" reasons. |
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My issue with the AMD Polaris-based cards is that the drivers on LINUX are primitive and the interface is JUNK - you can set fan speeds and clock, but I've yet to find any way to set power limit using AMDGPU-PRO drivers at all, so forget about EFFICIENT mining unless you subject yourself to the much lower stability level of Windows.
The state of drivers in Windows is ... not nearly as bad but still not a real happy one, since the blockchain drivers FLAT OUT DON'T WORK IN 7, I refuse to suffer through trying to make 8 work ever again with it's UNUSABLE INTERFACE, and 10 is very unstable buggy junk at this point and an ACTIVE pain to set up to get it to not autoupdate your stuff and BREAK everything if the only Windows 10 you have is Home ("free Windows 10" offer ran out and was an UPGRADE offer anyway when you looked at the fine print).
I haven't had the time yet to check on how well the recent "blockchain support added to the regular drivers" versions work with 7 - IF at all - but I got to the point early this year that I refuse to even LOOK at doing another Windows 10 installation for any reason, the result is NOT worth the pain and hassle.
If someone can point me to "how to set power limits on LINUX under AMDGPU-PRO" I'd be VERY happy - I've spent HOURS searching with no working answer found.
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Odd, I've never seen an "official EVGA" 8-pin to dual 8-pin adapter on any of my G2 series supplies - was that a specific thing to the 1000 watt model perhaps?
Their dual cables are NORMALLY one 6+2 and one 6 on the VGA end.
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Any idea if they'll use the same PSUs as the 741s? More specifically the EVGA Supernova 1300/1600 G2? I notice it's 8X6pin versus the 6X6pin the 741s used. Im assuming it can because the S9 can use the EVGAs with 9X6 pins.
If you are using ATX power supplies you are so doing it wrong. People should know better by now. Not automatically true - some like the ATX power supplies because they intend to use them for other stuff once the ASIC miner dies - or in my case I would use my EXISTING G2-1300 or X-1250 supplies because I have a couple floating around not currently being USED for anything. 8 PCI-E connectors on 1200 watts works out to 150 watts per connector - the EVGA "dual" cables should be ok as they apparently use 16AWG wiring to the first connector, then feed the second one with 18AWG, on the power and ground leads. There IS a 20 AWG wire in there, but that's a sense wire that doesn't carry significant power. So basically only buy ATX power supplies if you are planning on eventually using them with something OTHER than another ASIC afterwards? For economic sense, yes. There actually is one other possible reason - most Server-type power supplies don't provide as much power capacity on 117VAC as on 234 VAC - if you don't have 234VAC available and can't have your placed modded to do so, the ATX option (especially on 2 smaller PS) gets a LOT closer on cost since you would then likely be competing 2 small ATX vs 2 small server supplies. |
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There is NO logical reason for it to be limited to 13 "standard" cards - and it's NOT a drivers issue, it's a BIOS limitation issue on the part of ASUS.
Well AMD never stated more than 12 gpu's. So we can't really say its asus. It's an ASUS isssue - they're not saying "max 13 regular cards from one vendor", they are saying "max 13 regular cards PERIOD". If you mix AMD and NVidia, there is no reason you can't have 8 of EACH with the normal drivers that were available for WINDOWS at the time of the release of this board. LINUX at the time didn't have even THAT much of a limit. There is ZERO rational reason to require P106/P104 mining-specific cards to be able to run more than 13 cards from this board. There is also the question of the AMD "mining" cards that do not have a video output like some of the Sapphire models and if those are counted as "mining cards" by the ASUS bios. |
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Don't bother trying to mine on that GPU - if it even HAS CUDA cores, it has so few that you're not going to earn anything on any coin.
The CPU might be able to mine something like Monero, but it's going to have a VERY low hashrate at best and will NOT be profitable unless you have free electric.
The machine would be a viable base to build a riser rig around, using RECENT GPUs to mine on, if you upgrade the PS to handle them.
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NO.
According to EVGA, they can't be used for VGA power.
According to my LOOKING at them on one of my EVGA G2 power supplies, they have a different connector - the keying is completely different.
It SHOULD be possible to use one with an "8-pin CPU to PCI-E 8-pin" adapter cable though.
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8 + 6 is a nightmare to power in a multi-card rig compared to just 8-pin, and you're not going to push any Polaris card hard enough to NEED more than an 8-pin when mining.
8 + 6 will NOT ease the power load from the risers - the intent is to allow massive overclocking by gamers.
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