Hi I've found a few ways to get renewable electricity from my 4 acres here in the middle of nowhere, using gravity and the ground, i just have to buy a few parts and assemble them, or how can I build a mining rig where electricity usage doesn't matter? If I wasn't so poor right now I would buy the higher end ones that are easily searchable for but I figured if I go a little further it might pay off alot, im trying to get into bitcoin mining before all the corporations get smart and take up all the mining power. Thank you for your time
If electrical costs don't really matter, I'd suggest buying old hardware and checking out the Goods section in Trade Discussion. You can probably get a decent amount of KNC Jupiters, Bitmain S1's and a bunch of other basically obsolete hardware for cheap (miners that people are just turning off), heck maybe even some SP10's. this is good if you want <$1000 of hardware. If you are looking at operating more than it makes sense to go with more efficient miners which are available at above links for fair prices True but the question was cheapest. S1's a while ago would go for around $25-50 keeping them at the lowest price per gh when you don't look at power. 8x S1 units vs 1x SP20 in terms of hashrate. 8x$30 = $240 vs $500 3200W of PSUs = $300 vs 1200W of PSUs = $120 total = $540 vs $620 the 8x S1 units will use about 2000W more power. For $0.15/kwh that is about $200/month. Obviously these PSUs can be repurposed but the point is that the upfront cost is higher and the additional heat to deal with is significant. |
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WARNING
DO NOT SEND ROADSTRESS ANY BTC.
JUST SAY NO TO ROADSTRESS' NO ESCROW PRE-ORDERS
stop being dumb. Roadstress was approved by SP-T and simply acted to co-ordinate an MOQ=200 to achieve a special price by spondoolies for anyone smart enough to not buy at website price. I paid roadstress his small fee and ordered via the SP-T website. all legit with a tracking number already. ps: does the reservation fee effect anyone who knows the SP-T site link? not sure what stops someone paying the fee for 2 (if any) units and ordering 20 from SPT |
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KVA is equivelent to KW?
I thought there was a conversion involved.....
not really. Watts = Volts x Amps --> W=VA -----> KVA=KW there is some discrepency depending on your voltage input/output and other factors, but 100KVA means about 208A of 480V input power. Safe practice dictates keeping full-time load at less than 80% |
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not really. i pay 0.064 and it was not worth it at ~$330 BTC
dpends on how optimistic you are regarding price and network difficulty growth slowing down over the next 12 months. At $0.13 USD/kwh my assumptions include >$1000 by 2016 and difficulty growth sticking around 4-5%/jump for the next while, at least until price growth. Theres also the fact that hardware often sells used for 2-3x its mining value near the end of its life. Right now, S3 units are still selling for $200 and the S1 goes for ~$50 on sites like kijiji, craigslist, ebay, despite the fact you can get new hardware that is similar hashrates but more efficient for similar $/GH. all i can say is good luck to you LOL. im not going to pay $700 a month in power bills hoping to make money some time down the road maybe (probably not) s1 are not going for $50 on ebay. maybe in including shipping. i sold 70+ of them for about $20-$25 on ebay a couple weeks ago. and the s3s for $150-$180 including shipping Ive had good luck selling at decent prices locally  IMo mining gives the ability to invest that $700 monthly, rather than entirely up-front. I view mining as a way of hedging. It provides me with the ability to produce BTC at a profit and easily move money into BTC without an exchange. If prices dwindle I can stop mining and cut my losses in comparison to having to sell off bitcoin holdings I vividly remember how i looked at GPU mining in 2012 and mined a few dollars with no real profitability. walked away after a week or two. Came back in mid-2013 and was amazed to see that those BTC and LTC were worth 10x as much and that GPU mining was actually becoming profitable all over again. I think that will happen again if Bitcoin makes a large price movement, just like when everyone and thier mom was bringing S1 units and asicminer gear online last week because it was profitable for paycoin. |
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Hi I've found a few ways to get renewable electricity from my 4 acres here in the middle of nowhere, using gravity and the ground, i just have to buy a few parts and assemble them, or how can I build a mining rig where electricity usage doesn't matter? If I wasn't so poor right now I would buy the higher end ones that are easily searchable for but I figured if I go a little further it might pay off alot, im trying to get into bitcoin mining before all the corporations get smart and take up all the mining power. Thank you for your time
If electrical costs don't really matter, I'd suggest buying old hardware and checking out the Goods section in Trade Discussion. You can probably get a decent amount of KNC Jupiters, Bitmain S1's and a bunch of other basically obsolete hardware for cheap (miners that people are just turning off), heck maybe even some SP10's. this is good if you want <$1000 of hardware. If you are looking at operating more than it makes sense to go with more efficient miners which are available at above links for fair prices |
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Ug. Don't say that - I've disconnected it again now......  I'm pretty sure it's the hash board, but I don't have a multimeter to do what you ask I'm afraid. I've disconnected & reconnected the cables so many times now I'm sure they're worn out.....  Seriously though, I've been messing with this for hours - I think we should either try the replacement hash board (with new cables?), or I can box it up for you if you send me a label. Edit: Just read your post. Right, well if you think it could be a shared component fault - that's either the BBB or the controller board? I didn't try turning the BBB around - just made sure it was properly seated & there were no dry solders anywhere - it & the controller board seemed to visibly check out though. I can go over it all again if you want me to, but it won't be tonight I'm afraid, up early tomorrow & it's getting late. I'm also getting tired of looking at it tbh....... Have a think & let me know, I gotta eat.....  take a break. sometimes ideas come to you. My post was just to make sure you eliminate a bad ribbon cable or bad connector on the controller from the possibilities. Otherwise its likely that on the bad board the fault is in a component that drives both chip chains, as it seems strange that both chains are dead (ie: less likely that at least two hashing chips failed in a short timespan) |
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Dogie, so in other words, suppose I was using an antminer S3 , which has two boards and 4 pci-e slots... You could power one board, with one PSU, and the other board, with a different one? However, you could NOT power the same board from two different PSU's? Not that anyone would ever configure it that way, but that would be when you'd need the Add2PSU?
yes. The idea is that different PSUs may have slightly different readings or 12V and GND, and any differences caused by two PSUs on the same board can rely in the PSUs trying to equalize a large amount of 0.05-0.2V current through the hardware. y_boonstra, that's good information on wire gauge. I don't have anything in front of me at the moment, but the info is duly noted. Thanks.
But on the non-modular power supplies, that didn't seem to be a problem for you, which is good news. It's reassuring that I know they'll work fine. Were those overclocked Ants? Granted, if they're not getting hot at 360, I doubt they'll be screwed at 400 watts.
non-modular is fine, but messier. A few zipties can easily tuck away extra length. remmber to link the PS-ON (green) and GND (black) pins on the mobo connector to allow the PSU to run without a motherboard. IMO: most <$100 power supplies can handle 100-150W on a dedicated PCIe cable. Higher-end stuff (ie: gold rated and/or >$100) tends to be capable of 150-250W. generally: 18awg: good for about 100-150W ----- 16awg: good for 200-300W (this is for entire 6-pin connector, not just a single strand) |
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not really. i pay 0.064 and it was not worth it at ~$330 BTC
dpends on how optimistic you are regarding price and network difficulty growth slowing down over the next 12 months. At $0.13 USD/kwh my assumptions include >$1000 by 2016 and difficulty growth sticking around 4-5%/jump for the next while, at least until price growth. Theres also the fact that hardware often sells used for 2-3x its mining value near the end of its life. Right now, S3 units are still selling for $200 and the S1 goes for ~$50 on sites like kijiji, craigslist, ebay, despite the fact you can get new hardware that is similar hashrates but more efficient for similar $/GH. |
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hummmm Thank you for trying out! I'll be back if I think other options... OK - here it is connected to the RM1000 using four separate pcie connections - no difference. I then swapped the data cables over & tried again - the same board was still dead, so it looks like that's the problem eh?
[img]https://i.imgur.com/saJYdWy.jpg
so to check; have you tried flipping the BBB around and using the working ribbon cable from board one to attach board two AS board #1? this would eliminate any issues with the controller connections or the ribbon cable to the miner. beyond that, if there are no visible faults on the bad board, a multimeter and some poking around for 0.8V (& 0.8v multiples) and 12V test points may identify whether the DC voltage isnt getting beyond or to a particular component. Seems strange that both chains on the board went together, i am wondering if there is a shared component fault |
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Give us an idea of the noise that the s-5 produce.
it is noisy 67 db with a down clock to freq 300 vs freq 350 noisy WITH a downclock? I can't have two types of noisy miners...was hoping that this one would be tame. Promise to myself: never order a bitcoin miner UNTIL manufacturer posts a detailed dB table (with various distances vs speed and/or fan speed) dB isnt always the best way to do it - a 120mm fan can be loud but at a low frequency and seem much more tame than a 60mm fan at a higher frequency but lower decibles. The S2 used 140mm fans and had a sucking/whooshing noise that was very tolerable in a work environment compared with 120mm fans of similar airflow. does the S5 have the ability to add a second fan? this could really improve the noise, as could a shroud for the top if airflow escapes that way |
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thats such an open-ended question - browse the mining speculation subforum it will be way more useful than this post which will likely sink fast or get moved by a mod.
if you pay <$0.10/kwh you should mine and can likely pull a small profit.
if you pay >$0.20/kwh mining is not worth it right now. cloudmining rates are closer to $0.12-0.16/kwh
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Another beautiful Frankenstein S1 machine! I have to get off my butt and get my S1's back in the game 1TH from 6 S1 units - thats about 1400W correct? The S1 units can go to around 1w/gh at a lower voltage, but still it wont do much to make them profitable. At $0.15/kwh assembling my 5 units into a stack was simply to save space and run it on 2 fans only. Ive got a box of powerful fans and big aluminum hunks to deal with still though - Im hoping each frame is worth >$5 to a scrap dealer, and the fans are worth about $10 each to myself whenever ueful for other hardware (I changed all the rockminer fans for antminer fans) edit: a bit of gooling indicates that scrap aluminum from radiators or cast aluminum is worth less than high-quality items like car rims - about $0.50-0.70 per pound. Only $0.15 cents!? Here in Holland 0.235 euro cent kilowatt. ($0.28) how does one even have a hope in hell of mining at that price?  even at $0.15 CAD (so actually about $0.13 USD) I need to make some optimistic estimates when justifying a hardware purchase. The guys with $0.05/kwh are the ones that are building megawatt farms and laughing thier way to the bank with 2-3x the profit/TH |
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my S5 demo unit missed its delivery today - hopefully this evening or tomorrow morning it will be in my hands and photos + stats will abound.
seems odd to get half-speed. try disconnecting the data cable to the secondary board and see what happens. Its possible that there could even be one dead chain per board.
ps: Bitmain recently mentioned something about the unit stepping up the power gradually once the unit is booted. perhaps it did this and at about th 10min mark went a step too far?
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^I think two is the limit due to either the RPi or the number of IO lanes available - but am not entirely sure.
you should be able to find a compatible ribbon at most electronic supply houses such as a sayal or similar place. You could always buy a dozen 1-wire jumper pins and string it yourself.
has anyone figured out a way to make these units more power efficient? Its a shame that mine will likely turn off in a month from now - its the quietest miner I own and has never caused trouble to operate. I often think its not turned on because of the whisper fans and lack of blinking LEDs
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^This is really making a big issue over pulling an extra 50GH out of a unit - a value of less than $18. voiding warranty or buying a second $20 fan and spending the time to install it is not worth it.
At the peak speeds, any improvements you make come at the cost of about 1-1.2W/GH. Running at 1500GH uses approx 210W less than running at 1700GH. Unless you have very cheap power it will likely make sense by summertime to throttle back the hardware to improve the overall efficiency - or have heat problems.
I personally have 3 arriving this week that I hope to achieve ~1400GH/800W so that the fan can be kept at a reasonable volume. At $0.15/kwh it doesnt make much sense for me to try and get another 300GH/400W out of the unit, as the added hashrate gains are entirely spent on added power draw. Same reason as Ive throttled my SP10 units from 1400Gh to 1260GH to save 200W
Sorry @knlondike but you misunderstood me. You calculate with a fix price of the machine. Calculate cost and profit. I'm not speeking about the only 50ghs but when the weather gets warmer this will be 100ghs (from 1680 ghs) or more. At 20 pieces it's 2000ghs.... And i have room much more than 20.... I hope you unerstand why i'm trying to find some solution..... curious what you pay for power. I understand the aspect of clocking hardware to its limit if its profitable, but if you need to make >$10 in modifications to gain 50GH/60W per unit, plus have slightly more PSUs/TH it could be more practical to buy an extra SP20 for that extra 1.65TH/$500. If its a hobby to do modifications though thats another story |
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Applying for the 10 GH/s and VIP voucher codes, please.
You must fill out this form: Name: Surname: Date of Birth: Sex: Email: Tel.Number: Rewrite the text: 3xAzz8s Press the key combination: "Alt+Ctrl+Del" THREE times.Where could I find this form? Why do I need to press these 3 keys three time? What is this for bullshit, please? ignore him. its just idiot bait to make people mash CTRL/ALT/DEL and then feel bad and sit in the shame corner while everything boots back up |
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paycoin is worth 2x now what is was during the mining spree - impressive yet perplexing as it still shows no significant value or utility. Glad i directed about 15% of my hashrate to direct mining rather than rig rentals - almost wish i had aimed it all at XPY directly now, wouldve meant one hell of a profitable week
even so, ive got 13XPY to play with and its gone up in value by ~$80 since i mined it
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Another beautiful Frankenstein S1 machine! I have to get off my butt and get my S1's back in the game 1TH from 6 S1 units - thats about 1400W correct? The S1 units can go to around 1w/gh at a lower voltage, but still it wont do much to make them profitable. At $0.15/kwh assembling my 5 units into a stack was simply to save space and run it on 2 fans only. Ive got a box of powerful fans and big aluminum hunks to deal with still though - Im hoping each frame is worth >$5 to a scrap dealer, and the fans are worth about $10 each to myself whenever ueful for other hardware (I changed all the rockminer fans for antminer fans) edit: a bit of gooling indicates that scrap aluminum from radiators or cast aluminum is worth less than high-quality items like car rims - about $0.50-0.70 per pound. |
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^This is really making a big issue over pulling an extra 50GH out of a unit - a value of less than $18. voiding warranty or buying a second $20 fan and spending the time to install it is not worth it.
At the peak speeds, any improvements you make come at the cost of about 1-1.2W/GH. Running at 1500GH uses approx 210W less than running at 1700GH. Unless you have very cheap power it will likely make sense by summertime to throttle back the hardware to improve the overall efficiency - or have heat problems.
I personally have 3 arriving this week that I hope to achieve ~1400GH/800W so that the fan can be kept at a reasonable volume. At $0.15/kwh it doesnt make much sense for me to try and get another 300GH/400W out of the unit, as the added hashrate gains are entirely spent on added power draw. Same reason as Ive throttled my SP10 units from 1400Gh to 1260GH to save 200W
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   5 antminer S1 units, cooled by a pair of Cougar 90cfm fans and running approx 460GH/430W (still working on tuning, 2 units are only running 70GH). Runs off a single CS650M ps: temps are up around 60-65C, and the hardware seems fine with that. I plan to get it in a cooler location soon though to drop temps 5-10C Very cool efficient setup! Edit: What are your clock settings? not all the boards are equally modded - the 5 pairs of boards range from voltage of 0.75-0.85V and as such use frequencies between 193-212 with to:45-55. I find at low speeds trying a lower timeout can help, but tends to result in lower speeds (the temps also cause that - a bit cooler intake would help) |
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