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spondoolies sp20's have been shipping the bitmaintech coupons had to help sell the s-4's. So 1 or 2% jump looks pretty sure right now.
I purchased 2 sp20's and kind of want to get one more. I know I am not the only one doing this.
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I've been running some numbers, one thing I see is that the SP-20 vs. the S4 is an under volt advantage that gains you money at the wall in favor of SP.. I may be wrong, but if they come out with new tech ANY batchs of the S4 won't even come close to ROI.. I bought some of the FIRST S4s to ship, and they are no where close to ROI . Even with the coupon, I can't pull the trigger when my first several S4's are so far under water. It takes me almost 15 days of mining to cover electricity cost alone. Anything after 15 days goes to the under water s4's .. This late in the game on the 28nm tech I can't find a reason to grab more. Anyone else have thoughts on how to make the s4 more profitable ?
With a coupon I can get 4 S4s for 3358 to my door. My calculations put me at Mid-February before i am losing money every day. All told I will spend $3358 and make about $1500 in revenue. So I lose $1800. How is anyone buying these and making this work. Even with free power and difficulty increasing at 10% I don't break even until June of next year. I would love to get into mining, but I cannot see how mining can make any sense to anyone anywhere unless you get the hardware for half what is the current going rate per mhs and free power. 1) https://bitcoinwisdom.com/bitcoin/difficulty difficulty is slowing, and its unlikely there will be any 10%+ increases until a dramatic price rise occurs - though next week may see a big jump due to the black friday deals by SPTech and Bitmain. 2) most people mining assume the bitcoin price will rise such that profitability is extended 3) you can underclock/undervolt to 0.5w/GH to extend the lifespan If you look at your calculations you basically assume it wont be profitable past june because you are assuming the price of bitcoin is still only $375 at that time, when (i personally believe) a price of $800+ is likely. If it isnt, you can expect the influx of new equipment to grind even further to a halt as all 1w/gh+ equipment is turned off. I don't understand the price must rise to justify mining logic. I can spend 9 BTC on miners now, I don't care about the price in the future, i want my 9 BTC back. I will never get there with any calculation I come up with. Anyone that is justifying buying a miner with a rising price, I suggest that you simply buy Bitcoin with your money rather than a stupid miner. I would not be surprised to see a drop in hashrate and difficulty in the coming months. Which tells me the price is going down... not up. why not ? do you pay high power? do you pay vat? I get buy 3 s-4's with a coupon for 2762 if I down clock to 1800gh they burn 1100 watts so 5400 = 3300 watts this is .611 watts a gh at 10 cents a watt and 3% diff jumps they break even in aug (btc stays at 375 usd) if btc jumps to 400 they break even in June. Do I think they are great investments no I don't. But they may make money. |
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I have free electricity, so it really seemed like a good idea to me lol.
I also have free power and the best method is to buy used...even then you will not make a huge profit these days. Your best bet is used S3's for sure...the SP stuff is nice, but pricey. yes if your power is free buy used. from a guy like me. if you are like me and your power is costly buy the best low power gear you can get. today that = sp20's then sell your power hungry gear to a guy like Blazedout419 . I have sold used gear to blazedout419 twice first time was s-1's and I purchased s-3's (june 2014) I had almost broke even with 3 s-1's the sale put me over the top second time was s-3's and I purchased sp20's (nov 2014) I had almost broke even with 3 s-3's the sale put me over the top third time will be the sp20's and I will purchase whatever is more efficient. (april 2015?) time will tell |
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I need SP20 software img to download .After installing firmware version: 2.4.22, both my yesterday arrived SP20, thinking that they are SP10 Dawson, and the only software versions for download is 1.5.10 - TEST VERSION and 1.5.8. Current firmware version: 2.4.22 When I use the automatic software update, then I get the message: The latest Spondoolies software already installed.http://www.perearstike.ee/avatar/SP20.SP10.jpghttp://www.perearstike.ee/avatar/SP10.SP20.jpgWhat does the error - LOOP[1] OFF (test serial failed or something)http://www.perearstike.ee/avatar/serial.failed.jpgEDIT. When I put it it the SD card with sp20-sd-boot , I get the message Current firmware version: 2.4.22 and still the only software versions for download is 1.5.10 - TEST VERSION and 1.5.8. and the first page is from SP10 Dawson. Exactly the same is with SD card recovery sp20-recovery. it is Saturday support is closed. they are open Sunday to Thursday. Post in a few hours for support. |
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thank you so much guys  good luck at what you pick. If I was putting in 25k. i would buy the 15 pack deal from spondollies 15 sp20's for 10,500 usd I would buy 15 s-3+ units from bitmaintech about 3500 I would buy a lot of psu from provantage they sell the evga 1300g2 for 192 but if I purchase bulk they wii sell for les. so I would have laid out maybe 16k for 15 sp20's and 15 s-3's and psu's the other 9 k I would buy btc and hold. so it is a 3 prong attack with the 25k invested. |
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This setting works fine so far. Thank you for the information. I am setting up my first SP20 but it is unstable and stop working after several minutes .  Try lowering your miner PSU limits. do this above: right now my settings are: copy them use them note make your fan 70 not 50 these settings are under clocked they give me 740 watts and 1313 gh hash. you should be stable with these numbers. if you are good then try to creep them up a bit. or just leave them as they are very power efficient settings. I can stay between .55 watts and .6 watt with under clocking   good I am glad they work for you.. this sp20 works really well if underclocked . I ordered a second and kind of want to order a third one. |
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I haven't heard of any new miners being ready for a Q2 release, is this speculation or known?
Well, some of it is known as asic manufacturers are busy announcing new devices in 16nm for 2015, but their expectations of performance are mostly pure fantasy. However, that won't stop the network hashrate growing rapidly as more capital is put into building bigger and bigger farms. Trust me on this, there are monsters lurking in the wings; expect network hashrate of 1200PH by June 2015, even with Btc at $350. well I wish those monsters the best of luck. we are at 300 ph so you think the monsters can add 900ph and still profit at the price of 350 a coin. I could go into long details of why they won't do that. but come june 2015 we will see if the monsters do it. |
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I'm interested in replacing two S3s with a SP20. The SP20 would be deployed at a data center where we have 208 volt power and active cooling. Power consumption, cooling, and fan noise are not a concern.
My hope is to reuse my two CX750M PS units that are currently driving the S3s. My question is how far can I safely over clock an SP20 with these PS units?
The Spondoolies site (which references the CX750M in their testing) recommends a 20% power reserve. So theoretically 1200 watts out of 1500 should be usable.
In an earlier post, someone indicated that overclocking to 1.8 THz consumed 1200 watts. But I don't know if that was at the wall or on the PSUs.
I've looked at the Spondoolies documentation, but the only information I could find was how to use their GUI to specify power parameters for overclocking. The information is pretty basic and sparse where it comes to actually tuning a unit for performance. Note that this was for the SP30; I couldn't find the SP20 User Guide on their site, but I assume that the configuration GUI is largely the same across all their products.
I'd be interested in any real world experience that people have had with their SP20s that would help me estimate how far I can safely push it with two CX750M PSUs.
Thanks in advance for any suggestions.
you can set the psu settings as high as 288 for each board. the real question for you is the cables on your psu do they handle a draw of 288 watts. I know evga 1300 watt and evga 1600 watt can be set to 288 and not melt. my guess is your units cables will set to 250 watts and you will get about 1550- 1650 gh out of the machine. you do know that setting to 180 watts gets you 1320-1350gh at around 740-765 watts. Not melt, but how hot do they get? I have a 750W PSU running on an Atminer S3+ and the cables can get warm to the touch. At 288 watts they must get really hot. I would not go to 288 on those psu's I would do only 225 to 250. I have done lots of testing with egva 1300 and evga 1600. in my house the fan noise is an issue and the gear will got hot and suck down more power when you go to 250 to 288. watt settings. since it is my house and I am a safety first guy have no worries doing the lower settings of 180 watts. I guess what I am saying is I do not believe the cxm 750 can do more then 250 setting long term. I have been mining since 2012 the gpu world and I have overheated psu wires. more then once. I do think you can set 250 x 4 = 1000 watts at the sp20 about 1100 watts at the psu plugs and run the gear at 1600-1700 gh I do not think those wires can do the 288 x 4 setting about 1152 at the sp20 and about 1275 at the psu. but I did not test a cxm only the evga's I have had cxm 750's and I think they are just a little less hefty wire wise then the evga 1300 or 1600. the amount of extra hash at 250 vs 288 is not worth it for you… but I am only one guy with an opinion. maybe someone else has exactly the setup you are asking about. |
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I'm interested in replacing two S3s with a SP20. The SP20 would be deployed at a data center where we have 208 volt power and active cooling. Power consumption, cooling, and fan noise are not a concern.
My hope is to reuse my two CX750M PS units that are currently driving the S3s. My question is how far can I safely over clock an SP20 with these PS units?
The Spondoolies site (which references the CX750M in their testing) recommends a 20% power reserve. So theoretically 1200 watts out of 1500 should be usable.
In an earlier post, someone indicated that overclocking to 1.8 THz consumed 1200 watts. But I don't know if that was at the wall or on the PSUs.
I've looked at the Spondoolies documentation, but the only information I could find was how to use their GUI to specify power parameters for overclocking. The information is pretty basic and sparse where it comes to actually tuning a unit for performance. Note that this was for the SP30; I couldn't find the SP20 User Guide on their site, but I assume that the configuration GUI is largely the same across all their products.
I'd be interested in any real world experience that people have had with their SP20s that would help me estimate how far I can safely push it with two CX750M PSUs.
Thanks in advance for any suggestions.
you can set the psu settings as high as 288 for each board. the real question for you is the cables on your psu do they handle a draw of 288 watts. I know evga 1300 watt and evga 1600 watt can be set to 288 and not melt. my guess is your units cables will set to 250 watts and you will get about 1550- 1650 gh out of the machine. you do know that setting to 180 watts gets you 1320-1350gh at around 740-765 watts. |
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I am setting up my first SP20 but it is unstable and stop working after several minutes . Try lowering your miner PSU limits. do this above: right now my settings are: copy them use them note make your fan 70 not 50 these settings are under clocked they give me 740 watts and 1313 gh hash. you should be stable with these numbers. if you are good then try to creep them up a bit. or just leave them as they are very power efficient settings. I can stay between .55 watts and .6 watt with under clocking   |
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thanks again for using my affiliate link for your 2nd SP20 Phil.
appreciated.
NP I sold off 3 s-3's to make some coin to pay for it. I am really tempted to buy a third. |
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2 miners at 746 watts is 1492watt, evga 1600w should have no problem with that load!
and a total of 2.7th/s!!!!!!!
right now my 1 machine is doing 1368gh using 840 watts at the plug this is 0.61 ---- in a warm room my 746 -- 1350 numbers or 0.55 can be achieved but you sometimes have restart troubles at those settings. when my second machine comes I will try to run 2 units on my evga 1600 p2 but I think it may be just short of being able to do it. Dogie would have been more accurate with 1.8 machines if you can get a server hp 2000 psu it will run 2 of these no issues. if you have 220 volts even easier |
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thanks guys..
I'll talk to the investor and see what he says about buying the coin..
I'm guessing your trolling. But if you do have 1 million dollar client.... hire a consultant. well guess all you want.. people have money, and a million isn't really special these days. to clarify, no client.. me. is there such things as "bit coin consultants" or do they go under "cryptocurrency consultants" ? I was all new to this so I like to do some digging myself before involving people, and getting charged high fees... how do you think I have this money... haha, Thanks again guys.. I'm gonna watch the price charts for a while to see what happens, as someone suggested to invest in the coin itself which I will do if I feel it's not going to drop.. in the meanwhile I'm looking at other currency as who knows, it might blow up like bitcoinn as there is much more to be made with cheaper currency then higher priced currency ( my take ) First question is where do you live? just the state is enough. next question is? do you want to run a place as a job? lets say you want sp20's decent gear below is a 10,500 dollar deal http://www.spondoolies-tech.com/products/sp20-mini-farm-batch-1much less then 1,000,000 it needs 15 psu's this one is great sale is solid http://www.amazon.com/EVGA-SuperNOVA-1300G2-ATX12V-120-G2-1300-XR/dp/B00COIZTZM/ref=sr_1_1?ie=UTF8&qid=1417238771&sr=8-1&keywords=evga+1300+g2so 10500 plus 2400 is 12900 and 1 good switch 100 bucks 1 good router 100 bucks and maybe 200 in cat 5 wire that is 13300 and 700 in shelves 14000 to set this up if you run with high clock it will use 15 x 1100 watts or 16500 watts that is 400 kwatts a day 12000 kwatts a month. at 10 cents for power with 5% jumps in diff you lose 5k …… and I gave you free rent and zero labor costs. at 8 cents for power with 4% jumps in diff you almost break even. so do you have 8 cent power? |
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these miners are finicky . they have heat and voltage creep. At least 3 confirmed customers have burnt them.
For safety get a cookie sheet line it with some ceramic tiles. this way if it burns it is on a fire proof surface.
Crazyguy took a return from me. I wrote this up a lot on his thread. While I liked this gear and I am handy I could not get it to stay underclocked at 950 watts and 1200gh
the watts and the heat drifted onward and upwards. seeing the 3 burnts setups and having to travel a lot the next 2 months. I was afraid to run this gear with out close supervision. I was happy that crazyguy took the return from me.
If you buy this you need to run it in an area that can handle it burning up.
@ dogie please show some of the burnt up boards that happened with these for the sake of safety of our forum members.
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They are just as loud, but personally speaking the pitch on the fans is much more tolerable than the SP10.
Hey Matt/bobsag3 when are you finally going to send me my refund Minersource (Miner Hosting LLC) promised twice??
I was told to receive a refund on May 22, 2014 and on June 30, 2014.
I ordered on November 2013. Your company still has my $844! I told you I would be fine if you would just send me 1 BTC and it's done. I've been waiting more then 6 months now... 
Please send the BTC to: 15TrStnmq3G3NymjDQGPKfvGKGtd9x9945order number ending with: R....24732 to bobsag3 if this is a legit complaint please fix it. @ Dallas5 hopefully if you are legit bobsag3 and thomas will pay you. you can then buy an sp20 for the refund. Thanks, I've been waiting for a refund from Minersource for several months, I've tried everything and don't know what else to do, $844 is just to much to give up and let them have it. Shitty thing is more then 6 months after my order was cancelled and I was promised to receive a refund on two occasions they still tried to ship the now worthless blackarrow X1 miners. Sorry for posting here, I will leave this thread alone. As I said I'm running out of options and I can only remind them in the hope they will do the right thing. shame black arrow hurt a lot of people. bob, tom and dz zombie had made a lot of money for a lot of us in the early rounds. this round 17 they paid back more then 40000 usd in refunds. they still float around maybe you can catch them on a good day and they will pay you off. they refunded me but in btc. which tanked a lot. so my usd loss on this was 400 usd on 13 shares. good luck. bob if he is a real buyer toss him something. |
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yeah I am good after about 2 hours.
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okay took a while but I have it running. I will post back in about 1 hour . i was doing 1400 on mmpool I am doing 1400 on westhash  I am Just about the same 1403 this is under clocked  |
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Guys, I would need some of you to test how well a Spondoolies SP20 works on our pool NiceHash / WestHash. Could somebody please try to connect to our stratum for like a half an hour or so and see if hashrate reported on our site is the same as reported by miner? stratum+tcp://stratum.nicehash.com:3334 -u yourBTCaddress -p x stratum+tcp://stratum.westhash.com:3334 -u yourBTCaddress -p x When your miner successfully connects, take a look at the miner stats page: https://www.nicehash.com/index.jsp?p=miners&a=1&addr=enterYourBTCaddressPlease report if you have success because we have some customers interested in upgrading to SP20. Thanks! I will do it in about 10 minutes. mmpool.org was fine btcguild.com was fine I set diff to 1300 on mmpool I set diff to 1024 on btcguild . here is my current page for mmpool and the one sp20 I have stratum+tcp://stratum.nicehash.com:3334 1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje p=0.121 I f'ddd up need to do p=0.0121 will do!! |
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To be honest, I've been watching the difficulty estimations change a little too much, and I'm convinced that all the sub 2% swings in the next estimated difficulty are just variance, plain and simple. Crossing my fingers, though, I really want to see the diff drop. For once my payouts might... actually... increase!  too many days away to really know, but it moved to (-0.65%) about 40,037,572,339 https://bitcoinwisdom.com/bitcoin/difficultysome are lower http://www.bitcoincharts.comhas it at 39807376875 this is (-1.22%)http://blockexplorer.com/q/estimate39421642542 that is (-2.17%) |
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