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pretty sure its internally controlled based on load and temperature sensors.
IME with server PSUs, anything over 40% load gets loud, and anything over 70% load gets outrageously loud. at 90+ load you absolutely need a datacenter due to noise
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How many AMP breaker do I need to power 3 S5s running on one pair of outlets? 2 in 1 and 1 in the other. 2 are running on 15 AMP breaker right now but third coming today.
I am running at Freq 400 right now but will be dialing back to default because it is starting to get warmer here.
I have a 3 X 15 AMP breaker powering a baseboard heater in my garage and can bypass that for rigs if need be.
120 Volts here.
not sure exactly what you are asking. A 15A circuit at 120V and 80% load is about 1500W. an S5 overclocked slightly will draw 650-700W at the outlet. That means you're limited to 2 S5 units per 15A circuit and will have 200-300W of safe overhead for plugging in other devices. Often multiple outlets are on the same circuit, so if you plug unit#3 into another outlet on the same circuit, it will probably trip the breaker. |
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I agree for such upgrade. The main point is hashing chips AFAIK. ) All other S2 components (especially if you have already change the PSU) are reliable as a tank.  +1. shipping weight and size will be about 1/4 that of shipping an S2 because there is not the weight of a PSU, case, fans, etc. however, the S2 is still a practical miner in a lot of environments as it can run at 1w/gh. by upgrading it you would end up with a stack of old hashing boards that are likely worth $100-150 in hashrate. ideally bitmain will come up with a clever way to sell a lightweight kit consisting of a backplane/beaglebone and a way to mount a few fans so that the old S2 boards are not just junk |
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My numbers are in fact correct when calculating what you will actually get paid when you compare that to the predicted payout.
Sorry, but the numbers aren't correct (in this context). If you take luck as a measurement you can only say what happened in the past. Pool luck is not a constant thing. It's going up and down all the time and there is no way in predicting the future luck.The best you can do is use the current rate of payout. Ancient history does not matter, but current luck, or lack thereof, is the only thing you can use. You are quite free to not look at current rates when choosing what pool to use, by all means, please go right ahead and use the one that is currently paying the least, be it due to luck or skimming or whatever. im going to step in here because the last two pages of this thread are just getting silly. 1) not sure why you keep attacking kano directly. its unneccessary, and makes you look like an ass (same goes for kano responding in a similar manor) 2) LUCK: "success or failure apparently brought by chance rather than through one's own actions" //OR// "chance to find or acquire" -luck (or 'varience') is unpredictable, and always changing. A pool can have 85% payouts one week and 110% payouts the next. The priciple is that over a sufficienctly long period of time (months or years) the overall payout should be 100% (+/- a few %) 3) as such, the luck you see TODAY is not what you will see TOMORROW. It changes. basic probability and statistics says so. 4) why would you put less than the going BTC/TH/day into nicehash calculations? The best method for nicehash is to set it ~3% higher than the "typical/predicted" payout of other pools, so that your miner switches only when it is sufficiently profitable. |
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Thinking of two S5, outside of footprint, is there a real compatibility advantage to buying one EVGA Supernova 1300 Gold Vs two Corsair CX750M Bronze? I understand the CX750M measures as an 825W supply (per Dogie), so it seems to me the reason to choose the 1300 is less space and fewer power cords. Right or wrong?
Overall you'll have less loss using a single, larger PSU versus two individual ones. Granted, its not much loss, but hey, electricity is electricity. The CX750M is bronze rated, which means that using a pair of them vs a single 1300W GOLD is about 2-4% more electricity usage. its not a whole lot, but its still $2-3/month savings with a more efficient PSU. over the span of a year, you'll have saved about $30 by using a gold-rated PSu over a bronze-rated one. |
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i would estimate the fair value around 4+3.2+1.75+1 = 9.95BTC for a set like that. by selling them all at once (with PGP docs especially) the value could be closer to 12BTC |
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Dual mining technologies on a single chip is not a good idea, there are almost no common parts between the two hashing engines, the silicon for the scrypt engine is a waste of space unless LTC price goes up considerably. Also, the scrypt engine will be relatively power hungry.
...As for SFARDS I wish them good luck with their chip, especially with routing it.
i agree. There's very little real benefit to this compared to simply having seperate sha256 and scrypt mining devices. pretty sure whatever gridseeds are still in use are 100% dedicated to BTC at this point. |
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if a spondoolies miner is stolen - can the serial number be used to track it down?
 Did someone break into your place? it appears that the guy in charge of colocating some of my units made a very strange series of decisions that involve the equipment of myself and several others being loaded into a uhaul without notice. the whole things is so absurd sounding that I hope things can be sorted out as some sort of accident. either way - curious what options are available in a situation like this edit: got an update and seems like theres just feuding between others that my hardware got wrapped up in. should turn out okay - but it made me reconsider what options are available to protect hardware from theft. features like 'call home' when a system is moved to a different IP address could be nice, but possibly overcome by a simple factory reset or uSD recovery file |
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if a spondoolies miner is stolen - can the serial number be used to track it down?
hmm...just the kind of question you want to see from someone who has on his account 'asic wannabe" (gets popcorn.... never saw a spondoolies 'stalker before" this could be interesting) just kidding but I saw the 'asic wannbe with this question and it cracked me up...  heh - i was an asic wannabe back in summer 2013. still am, but have been mining since sept 2013 |
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if a spondoolies miner is stolen - can the serial number be used to track it down?
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One of my SP31 is not behaving very nicely. Actually, it is hashing with a maximum of about 1 Th. I have access via ssh, and looking in the logs, I see the following - well, it asks me to disable "one by one". How can this be done through ssh? Or has anybody an advice what I should do? Mar 28 00:06:14 miner local1.warn minergate[1737]: Critical: Asic disable 15: Loop RT loss - disable us one-by-one to find the bad one
Mar 28 00:06:14 miner local1.warn minergate[1737]: Critical: Asic disable 16: Loop RT loss - disable us one-by-one to find the bad one
Mar 28 00:06:14 miner local1.warn minergate[1737]: Critical: Asic disable 17: Loop RT loss - disable us one-by-one to find the bad one
I have one like that where it seems that its only stable once i manually disable at least one asic from the 'trouble loop', and it generally disables 2-3 more for failing BIST, then becomes reasonably stable. go to settings, and one of the lower categories allows you to DISABLE specific chips. disable 1-2 at a time fromt he trouble loop, as the issue is sometimes a chip and sometimes poor power delivery |
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I have undervolted my S1s with 10k trimmers to 0.85V and 0.75V.
Spring and summer is coming and I want to mod the rest of S1 space heaters to 0.75V but I can't find a table for settings of MHZ near 200.
200Mhz didn't work at 0.75V I had to use 225 and got over 1% errors, I did find some S2 settings but they have totally different timing setting (smaller values).
I want stack 6 plates with original controllers and 2 fans, do boards without fan work?
you need a fan if you stack the boards, or youll see everything reading in the 65-75C range. I put all my boards on 1" spacers and cool it with a pair of silent ~70cfm cougar fans. Its barely audible and brings the temps down to 55-65C even while tucked in a cubby. (in a better open location it might be 50-60C). This is without heatsinks |
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S3 is a good bet - but there arn't too many for sale. they are similar in volume to a desktop computer and can be managable in even a living room
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such bullshit. one more reason to stay away from cloudmining and these unlicensed 'stock exchanges'
AM1 was once 4BTC/share. now its 0.01BTC, thats <1% of the value it once held. Friedcat ran off with the other 99.8% and the asicminer board members do nothing but hide information and fail to produce new technology
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Everyone who ever bought an S1 or S3 and didn't resell it or throw it away. I've got about 15 running around the shop. Or you could fetch one for about $30 and refit it.
I am still running 2 s-3's in my friends office. he has limited power of 2.4cents a kwatt. your gear would make for a perfect upgrade for the two of them. at the cost you pay for electricity, why would you upgrade an S3? its probably churning out a decent profit at ~0.8w/GH I have about 6 empty S1 frames (i run the boards undervolted without heatsinks to save space) that id love to make use of though |
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Another nice feature would be to multiply the "wall watts" number shown in the ASIC stats page with time to get total kWh consumed..
that is in the asic stats page (but cumulative kwh isnt) |
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are you running on 120V?
my guess is the datacenter used a more stable 208v or 240v, and perhaps your residential power is less reliable? thats about the only reason i can think you would have two identical failures
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I run my SP31s with the following settings, .64, .64, .67, and limit psus to 750w each. I run fans at 40 with air conditioning and ceiling exhaust fans and get 3.5 Ths at about 1500w.
Thats surprisingly good - i assume thats 1500W DC though, and closer to 1850W AC? generally the SP3X doesnt get more than 0.5W/GH efficient at the wall unless you really tune it low |
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if you realllllllyyyyy want to do it your way - youll need to cut every single wire that runs to the PC and put independent switches on all of them. otherwise, even if you turn on the powersupply with a jumper - power would be fed to your PC and it would turn on.
FACTS: 1) PSU on = power in the wires 2) power in the wires to your PC = PC ON 3) PC shutdown signal = PSU shutdown signal
spend the $60 on a new power supply - you cant do what you are asking without serious hardware modification and cutting up wires on your PSU.
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You cannot have a psu that is both on and off at the same time, you're asking something that doesn't make sense.
LOL. Never said I want it to be on and off at the same time.  I want to power a PC and miner from the same PS, but if the PC is shut down, I need the PS to be on for the miner to still run.
Thats exactly what you said. If the Power supply is on, it means the PC turned it on via the 24pin cable. when you shut down a PC, it turns off the PSU via the 24pin cable. You need to buy a second power supply if you realllllllyyyyy want to do it your way - youll need to cut every single wire that runs to the PC and put independent switches on all of them. otherwise, even if you turn on the powersupply with a jumper - power would be fed to your PC and it would turn on. FACTS: 1) PSU on = power in the wires 2) power in the wires to your PC = PC ON 3) PC shutdown signal = PSU shutdown signal |
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