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I switched out all my s-3's to 8 sp20's and 1 s-5
My winter power is 13 cents but get about 3 cents in savings from the heat.
So I am 10 cents net until April.
Price drops under 100 and stays there for 1 month I will shut down.
I may use the s-5 at freq 100 and solo mine it. Until it dies.
I run 10-12gh at a solo pool will run that till the gear dies as the cost is low.
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Bitcoin Difficulty: 43,971,662,056
Estimated Next Difficulty: 43,113,243,921 (-1.95%)
Adjust time: After 1457 Blocks, About 10.6 days
Around 215 per coin. Guess it could be worse but sure hope to see price go back up a little more.
my birthday is this Jan 27 . So a new diff may come on my birthday. I want a 41 diff and 260 price on my birthday. I could live with that. I am getting other fears about the industry. Gridseed blades went from 3000 usd to 100 usd and LTC went from 40 usd to 2 usd. I can see s-5's selling off at 200usd in an effort from bitmaintech to get out of the business. I do not think we need this firesale. |
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What is the hash rate, and is noise really so loud?
stock settings = 1150gh at freq 350 and sound is 72-74db. plus it is nasty pitch with the stock fan. "nasty pitch", it's closer to a cat being tortured. Worst than those high speed 40mm fans in network switches. I sold my first two (and only) within 24 hours of receiving them. Modding them simply isn't worth the cost. the 2 deltas cost 8 bucks each. but I had a power supply to give them perfect volts |
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What is the hash rate, and is noise really so loud?
stock settings = 1150gh at freq 350 and sound is 72-74db. plus it is nasty pitch with the stock fan. |
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ahh the silverstones don't cool as well as the delta's. but they are pretty good. |
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S1 fan is better than no fan, but S5 fan is a lot more powerful than S1, so you may struggle to keep S5 cold enough... Hands down the best is a pair of the delta's from the ebay link. What link is that? It was a few pages back . Some one was selling 5 deltas for 41 bucks. http://www.ebay.com/itm/191443200211?4 pin pwm's he now has sets of 2 for 15 + 5 = 20 dollars http://www.ebay.com/itm/Delta-AFB1212SHE-Computer-Case-Power-Fan-120X120mm-Lot-of-2-/191472588964?pt=US_Computer_Case_Fans&hash=item2c94a7d8a4truly these are really good if you use 2 in a push pull at 5.5-6 volts they are really quiet and allow for a 990gh quiet miner. freq 300 if you use 7 volts they are pretty quiet and allow for freq 325-350 at 9.2 volts they are better then the stock fan and allow overclock. I did not bother setting them as pwm as I want a freq super quiet miner . I send 5.5 volts to the fans and I am doing this.:  oke thanks, What do you think the noise will be with pwm? I have my s5's now with s3 fans push - pull, but it is still quite loud! I run them @ 350 or 375 I am thinking of replacing them. the delta's on ebay are better then the s-3 fans but only by a little. Remember a s-5 at freq is close to 600 watts. at freq 375 it is over 600 watts. They are a bit better then the s-3 fans. Somewhere on the forum someone was able to run them pwm. |
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and sadly no decent short term ROI.
for most roi will not be found for more then 90 days. |
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If anyone in Canada is interested and doesn't want to pay shipping and import charges, I have a bunch of 25mm (WFB1212H - 87CFM 37dBA - no PWM, FFC1212DE - 140dBA 54dBA - PWM) and 38mm (TFC1212DE - 252CFM 66dBA PWM) fans laying around I probably won't use again. I have about a dozen each of the 25mm ones, and I think about 20 of the 38mm Deltas (or their Nidec equivalent) though some of the 38mm ones don't have 0.1" headers on yet.
yeah these s-5's with a pair of your delta's the ffc1212de the 140 cfm I think are nice gear. I bolded your quote as It may be a typo. |
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S1 fan is better than no fan, but S5 fan is a lot more powerful than S1, so you may struggle to keep S5 cold enough... Ok I finally install everything. With my setup, I cant run at 350. I run at 275 and get around 875 gh But the sound is almost 0. The temps are 63 and 54 is that ok ? Im also looking to put 2 S1 fan on it but the wire is to short I need to find extender.  Totally Understand that! Just want to fine a good way to mine at a good temp with a resonable sound level. 2 S1 fan in push pull should be good ? What is the CFM of the S1 fan ? Hands down the best is a pair of the delta's from the ebay link. What link is that? It was a few pages back . Some one was selling 5 deltas for 41 bucks. http://www.ebay.com/itm/191443200211?4 pin pwm's he now has sets of 2 for 15 + 5 = 20 dollars http://www.ebay.com/itm/Delta-AFB1212SHE-Computer-Case-Power-Fan-120X120mm-Lot-of-2-/191472588964?pt=US_Computer_Case_Fans&hash=item2c94a7d8a4truly these are really good if you use 2 in a push pull at 5.5-6 volts they are really quiet and allow for a 990gh quiet miner. freq 300 if you use 7 volts they are pretty quiet and allow for freq 325-350 at 9.2 volts they are better then the stock fan and allow overclock. I did not bother setting them as pwm as I want a freq super quiet miner . I send 5.5 volts to the fans and I am doing this.: |
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Assuming the price holds I think we'll see the S3's and all miners released prior to their introduction slowly get turned off.
Does anyone know if BitFury has their new chip up mining? They said it would be released around now but I don't think it's actually up in mass yet.
yeah this diff and the next will be very interesting. Along with btc price. |
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but on www.bitcoincharts.com still lower Blocks 339172 Total BTC 13.729M Difficulty 43971662056 Estimated 43225557369 in 1532 blks Network total 373889.925 Thash/s Blocks/hour 7.13 / 505 s |
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Interesting. 3 sp20's for <1200$ now!!! ballin! w/free shipping (more ballin) the question is how will bitmain respond? Surely simply matching this price is not sufficient....  and bitmaintech sell 3 s-5's for 3 x 340 = 1020 coupons can be as high as 45 each so 1020 - 135 = 885 plus shipping of 118 total of 1003 .. I do not think they will drop the price. as 1003 after shipping and coupons beats 1199. I'd pay the extra 200 =) well I have 8 sp20's and 1 s-5 so you can see what I prefer. I am in a private home and I do have the room for 1 more s-5. I have to down clock it to freq 300 and add 2 delta fans but it would be quiet. 47 -48 db I think I am going to do this. I will have 8 and 2. about 12th and 6 kwatts of power s-4 wants how much for power 1200 watts for 2000gh? or more like 1350 watts for 2000gh. |
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hi,
a beginner question here...how do we know if we found a block when joining this solo mining pool?
thank you.
Edited: using rented rigs where we can not have a look at the cgminer's stat.
you won't know. It will be up to the pool to be honest. now consider this someone paid for rentals a few days ago. and how many blocks did he hit 3 or 4 now IIRC. |
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Interesting. 3 sp20's for <1200$ now!!! ballin! w/free shipping (more ballin) the question is how will bitmain respond? Surely simply matching this price is not sufficient.... and bitmaintech sell 3 s-5's for 3 x 340 = 1020 coupons can be as high as 45 each so 1020 - 135 = 885 plus shipping of 118 total of 1003 .. I do not think they will drop the price. as 1003 after shipping and coupons beats 1199. |
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so if im paying 7.562 cents per kWh
what does it cost per day to run one S5??
here you go: .51 or .52 watts a gh so stock speed is 1150 gh so .52 x 1150 = 598 watts lets say 600 watts 600 x 24 = 14400 watts or 14.4 kwatts make that 15 kwatts 15 x 7.6 cents = $1.14 usd a day or 1.14 x 30 = $34.20 usd a month close for stock speed with a decent psu. |
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S1 fan is better than no fan, but S5 fan is a lot more powerful than S1, so you may struggle to keep S5 cold enough... Ok I finally install everything. With my setup, I cant run at 350. I run at 275 and get around 875 gh But the sound is almost 0. The temps are 63 and 54 is that ok ? Im also looking to put 2 S1 fan on it but the wire is to short I need to find extender. Totally Understand that! Just want to fine a good way to mine at a good temp with a resonable sound level. 2 S1 fan in push pull should be good ? What is the CFM of the S1 fan ? two s-1's in push pull will work at least to freq 325. I tested them. the cfm of them is around 129-135 and they penetrate air in and out of the heatsinks pretty well. Hands down the best is a pair of the delta's from the ebay link. You can run quiet (db 47.7) at freq 300 hash rate 990 or run up to freq 393 at 1290-1300 dp of 60-62 the stock fan at freq 393 does db of 75 + and struggles to cool the s-5. If super clock is you goal a stock fan and 1 delta gave me freq 412 decent hash rate 1315-1325 crazy loud db 78-80 |
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One S3 should run just fine even on the most weak shitty PSU. even if the PSU burns, the miner should be just fine, if the connectors are not melted. If there are melted connectors, then it's a bit different.
That's not true. On the way out a PSU won't necessarily stick to 12V as various internal things start turning to goop. you are correct but the op said he could run 3 100gh. r boxes that is about 375 watts. so I am thinking the first s-3 was a bad unit. remember he got the end of life s-3's .---------------------I base this on the assumption the op is telling the truth. If he honestly though that an S3 had blown up his perfectly good / adequate PSU, why would he put a further THREE PSUs on that unit as each subsequently fails? I don't think we're getting the full story. yeah. I kind of doubt the story. I would have stopped as soon as I killed 1 psu and asked questions. But I have had days of extreme stupidity with electrontics. A Marantz monoblock amp comes to mind. I thought the fuses were defective. I kept putting in bigger fuses thinking that would fix the problem!!!! So when I finally got up to a 30 amp fuse from the oem 3 amp I blow the Marantz up. When I look back at that I do not have an explanation for my testing procedure other then extreme stupidity . So maybe the op was guilty of an off day. Hard to tell I am not inside his head. |
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I bought 2 of each of the 2 first. Will let you know when I receive the miner! 
