Do you have new photos Phil?
yes I do I have been cleaning and fixing the garage better.----- right now I have 4 sp20's and 3 s-3's under the movers blanket. plus 2 more s-3's to the far right about 7.7 th and 5000watts in my garage I used a cement tile board behind the sp20's for fire control. found it at lowes under 10 bucks  same blanket to muffle sound and the open garage door for heat removal  I am running 5000 watts and 7.7th in the garage temps are 89 f  stainless steel abounds in this photo  I can stack 1 more sp20 and 1 more s-3  20 inch box fan helps cool gear.  |
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I have quite of heating problem, i lowered the voltage its getting over 35 :/ what ever i do its heating to much
lower your watts. Temp Front / Back T,B 36 °C / 74,77 °C Fan Speed 40---------------------------------------- Make your fan at 80 try all the other settingsStart Voltage 0.68 / 0.68 / 0.66 / 0.66 Max Voltage 0.69 Max Watts 175 / 170 / 175 / 170 low setting my power is only 753 at the k watt meter my fan is at 40! still really good temps and watts per gh  temps are great  |
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http://www.bitcoincharts.com/ ( - 0.22%)Blocks 333189 Total BTC 13.580M Difficulty 40007470271 Estimated 39916066515 in 1467 blks Network total 268307.595 Thash/s Blocks/hour 5.62 / 640 s https://bitcoinwisdom.com/bitcoin/difficulty (-0.55%)Bitcoin Difficulty: 40,007,470,271 Estimated Next Difficulty: 39,788,774,306 (-0.55%) Adjust time: After 1467 Blocks, About 10.3 days Hashrate(?): 289,096,822 GH/s Block Generation Time(?): 1 block: 10.1 minutes 3 blocks: 30.3 minutes 6 blocks: 1.0 hours Updated: 17:40 (5.2 minutes ago) I can live with these numbers. I earn money over my power bill . So it can stay under 40 diff if it wants to.
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Hi.Can anyone tell me how to OC the SP20 ?
Just got 2 of them, took me 2 mins to configure them, excelent working pieces of hardware
I have 1 SP20 that is run by 2x 1000W PSUs, and I belive there is some room to OC this one
Can anyone tell me the exact stepts I need to do in order to OC ?
Thanks !
go to settings page set fan to 90 Speed Set your starting voltage no more then 10 mv under your stable working voltage (from ASIC stats page) Start Volts Unit 1(0.64-0.80) try .715Start Volts Unit 2(0.64-0.80) try .715 Start Volts Unit 3(0.58-0.80) try .71 Start Volts Unit 4(0.58-0.80) try .71 Set your Maximum voltage to 0.790 for maximum mining or less for economy mode Maximum Voltage (0.580-0.790) try .73 Set PSU power to 120 and let the system learn the actual PSU limit. Max PSU Power Unit 1 (70W - 288W) try 235Max PSU Power Unit 2 (70W - 288W) try 235 Max PSU Power Unit 3 (70W - 288W) try 235 Max PSU Power Unit 4 (70W - 288W) try 235 Save check the asic stats page look for temps 115 and lower |
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well it may lose money or it may make money.
I don't know much about that hosting service and if you can point to pools of your choice.
I also do not know if you can sell the gear in a few months since you own it but they are holding it.
I would say hold the coin it earns and hope for a coin price spike in the next few months. Also find out if you want to sell it want they will allow you to do.
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Is the EVGA SuperNOVA 1300G2 strong enough to power a SP20 full tilt? Or maybe even something smaller?
If you can keep the unit in a cold place. The evga 1300 does 250 watt setting with zero issues. In my setup 250 to 288 setting make my gear too hot. But as the winter comes and I get colder weather I could do it. This gear really wastes power from 240 to 288 settings. So I under clock to 180 watts Then I add an s-3 so the evga 1300 gives me an sp20 at 1350 and an s-3 at 450 = 1800 at 1150 watts |
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If you want the math to seem easier try my pool calc page - that's been around for a very long time  Just enter your hash rate as the pool and as your miner to see the details from both points of view - as it is here (note that the pool is TH/s but the miner is GH/s) http://tradebtc.net/bitcalc.php thanks for the link |
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Can I mine with a Block Erupter? I mean it, seriously. Can one BE gets me 'in the door' like a dollar lottery ticket?
The odds..I know. But would it work?
yes here i am with a few ice fury sticks and a u1 stick http://solo.ckpool.org/users/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtjethe math is really difficult 1 out of 180,000 for a day. but these cost me very little to mine about 5 cents a day. so for 5 cents a day why not |
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I wonder who swithched OFF ~30ph in basically one day. It plunged from 304 to 274PH.
Network was kind of weird in the last month or so-sudden surges followed by deep plunges in hashing speed.
I still stay by my conviction that it would pay for someone to purchase calls on bitcoin, then purchase hashing, switch it off and see a spike in bitcoin price soon afterwards. Rinse and repeat.
A 30PH dip can easily be attributed to variance due to bad luck... especially when that missing 30PH suddenly shows back up on the network a day or two later. Well if you look at the 512 block hashrate chart, you will see that the hashrate is falling very quickly, likely more so then what I would personally attribute to "luck". I would say that some large farm is slowly being taken offline or inefficient miners are being taken offline as their owners are seeing they are no longer profitable. I would predict that we see another small decline in the difficulty Anything under 1% is good for me. Bitwisdom is showing "Estimated Next Difficulty: 40,249,613,605 (+0.61%)" right now. Will be one great month for miners if it could do little difficulty increase for a few in a row. With winter could not have come at a better time. with diff at 40 if it slowly grows to 50 by early spring lets say March 24 2015 it would be a really nice winter. that would be 2.85% diff avg and it could do this |
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Ok i have no idea how to insert picture, but mine is
Temp: 23c / 72.66
Fan speed: 90
Start Voltage 0.69 / 0.69 / 0.69 / 0.69
Max Voltage 0.75
Max Watts 288 / 288 / 288 / 288
Mining rate atm 1598.04Ghs
i think i will need to find a good idea to cool the room more when i have my other units running.
drop those settings fan 90 try 0.69/ 0.69 / 0.68 / 0.68 max voltage 0.72 max watts 240/240/240/240 see what you hash with that. Ok i´m moving to another location, will try 240 i tried to have it in a closed room but then the heat went to 33, and i did not want to any risk so i just placed them near the window and temperature dropped i see on screenshots units are running to 35 degree is that okay? yes it is fine the most accurate heat numbers are on this screenshot. these taken are after I closed the garage door from 11pm to 8 am all my numbers are lower the the 125 max column I am 85c ---- (125c) my 85 is way under the 125 85c----- (125c) " " " 85c----- (125c) " " " 110c----- (125c) 110 is still under 125 85c------- (125c) really good 85c------- (125c) really good 105c------ (125c) still good 105c------ (125c) still good  |
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the beauty of being the mod to a thread is I can delete it. which I will as no one on this thread has told me they have more then 4 sp20's
I have three. Only I ordered 15 more.  nice where will you run them? I didn't see you had opened a thread philip, or that you were curious about the numbers. I've got six SP20's ... I have a bunch of gear that I've accumulated since 2012, I'll post some pics over the weekend. I still have my first ASIC setup  (not powered on lol) I have a few antminer u2's and bitfury double chip usb and 2 ice furys total of 14gh . I run it at a loss on account of I like the solo pool action. |
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I wonder who swithched OFF ~30ph in basically one day. It plunged from 304 to 274PH.
Network was kind of weird in the last month or so-sudden surges followed by deep plunges in hashing speed.
I still stay by my conviction that it would pay for someone to purchase calls on bitcoin, then purchase hashing, switch it off and see a spike in bitcoin price soon afterwards. Rinse and repeat.
A 30PH dip can easily be attributed to variance due to bad luck... especially when that missing 30PH suddenly shows back up on the network a day or two later. Well if you look at the 512 block hashrate chart, you will see that the hashrate is falling very quickly, likely more so then what I would personally attribute to "luck". I would say that some large farm is slowly being taken offline or inefficient miners are being taken offline as their owners are seeing they are no longer profitable. I would predict that we see another small decline in the difficulty Anything under 1% is good for me. |
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the beauty of being the mod to a thread is I can delete it. which I will as no one on this thread has told me they have more then 4 sp20's
I have three. Only I ordered 15 more. nice where will you run them? |
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why bother attacking bitcoin ? the market cap is 375 usd x 13,000,000 = 4,875,000,000 or 5 billion usd. Apple has a market cap of 700,000,000,000 or 700 billion usd.
I would say BTC won't get those kinds of attacks anytime soon.
Bigger danger is price drops very slowly while diff stays very flat.
So in 6 months price is 300 usd a coin and diff is 45 vs the 40 it is now.
This would really hurt btc.
another fear is paycoin catches on fire as a better thing then BTC
If not paycoin some other coin. with truly better features.
for now I mine. and wait.
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We are currently in the process of deploying our "Mass Miner Control" software with one of the larger players in the market who have similar machines. If you are a semi-large to enterprise farm, let us know if you are interested in access to a full automation tool. Err ... first post ... big farm ... some of us are a BIT smaller with our investments .... the beauty of being the mod to a thread is I can delete it. which I will as no one on this thread has told me they have more then 4 sp20's |
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Ok i have no idea how to insert picture, but mine is
Temp: 23c / 72.66
Fan speed: 90
Start Voltage 0.69 / 0.69 / 0.69 / 0.69
Max Voltage 0.75
Max Watts 288 / 288 / 288 / 288
Mining rate atm 1598.04Ghs
i think i will need to find a good idea to cool the room more when i have my other units running.
drop those settings fan 90 try 0.69/ 0.69 / 0.68 / 0.68 max voltage 0.72 max watts 240/240/240/240 see what you hash with that. |
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philipma1957: what is the temperature do you have on the sp20?
give me a minute to do screen shots here are all 4 units. now with underclock I leave 4 x 300 = 1.2th or maybe 4 x 250 = 1th but I can manage the heat the sound and power use better. A hundred or less in parts and this can run 5 months maybe 6 months before it is too hot in the Garage.  |
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Yeah I will use the cement board normally used for tiling good idea. And a bit of aluminum flashing I purchased the flashing at Lowes. I will post more photos soon.
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Here are some photos . movers blanket lowers sound a lot. note open garage door . this is around 6.8th 4 x sp40 = 5.3th 3 x s-3 = 1.5 th >>>>>>>>> really it is about 8.2th on the far left are 3 more s-3's watts = 4400  second shot okay 4 sp20's 3 s-3's 2 evga 1300 g2 1 evga 1600 p2 1 seasonic 1200 plat  third shot white blanket is fire proof I need a few pieces of sheet metal to feel really safe  fourth clamp stops gear from falling stack is (s-3) sp20 sp20 sp20 sp20 (s-3)  fifth some hot air tries to come back into garage those fans blow it out  sixth fire proof material protects a board also fan brings in cooler air------------------------------------ This is a 4 month winter setup  seventh sound is reduced a lot all fans are 50 or 60 this garage is attached to my home and basement den for Home Theater. I can watch tv and movies more important my wife thinks it is not crazy loud  |
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