I'm curious what pool configuration people are using. Currently I just use westhash:  Is there a way to optimize this? For example; is it possible to set a fail-over pool if there is an issue with westhash? Or to switch pools if another pool is currently more profitable? I know you can set parameters in the password field but I'm not sure how to use this. Absolutely there is. I mine at kano's pool but I have westhash and nicehash set up if the rate is high enough to make pool jumping worth it, then I have two other backups just in case.  |
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Zvi --- I am really enjoying 2.6.14 on my SP20s; One thing is needed to make the scheduling work well for many of us home miners;
Can you please add an option to set the fan speed, rather than just leaving it as auto
You can customize the fan speed if you run your scheduling via text files and use cron jobs. See this post: https://bitcointalk.org/index.php?topic=521520.msg10358008#msg10358008I run all of my miners via these crons (8 of them) and it works great. |
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Or if you want to save a ton of money over the EVGA's you can use 2880w server Psu's w/ boards, that are more efficient and less than half the price...
Just throwing it out there. For my SP20's I shoot for around 1400-1450 Gh with .67 starting Volts and ~225w per loop. Able to run 3x SP20's per PSU.
Finksy, do you have a link for the PSU/boards? I'd love to just save the space as much as anything else, and I can sell my EVGA PSUs without issue. |
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@philipma1957, or anyone with experience.
At this rate, since I'm using 600W'ish, can I run two SP20's off one (120v) EVGA 1300 G2? Safely? I recall you trying that somewhere in the thread, but don't remember the results, if any?
If so, how do I hook it up if I only have two more VGA red slots off the back?
I run two SP20s off of a single EVGA 1300 G2. Actually I run 6 of mine that way, I run two volt settings via the crontab because of heat/noise and electric cost issues during the day. They've been running like this for two months now without a single issue. Here are my volt settings: miner-FL1451099043# cat mg_custom_mode_day FAN:0 VS0:605 VS1:615 VS2:605 VS3:615 VMAX:620 AC0:120 AC1:140 AC2:120 AC3:140 DC_AMP:170 miner-FL1451099043# cat mg_custom_mode_night FAN:0 VS0:640 VS1:660 VS2:640 VS3:660 VMAX:665 AC0:160 AC1:180 AC2:160 AC3:180 DC_AMP:170 During the day 900GH/sec I'm using around 430W at the wall At night I get 1.2TH/sec and I'm using around 610 at the wall There are 6 outputs on the back of the PSU, I use one of their "double cables" and plug those into loops 1 and 3 (AC0 and AC2 internally) so I'm sending a little less power down that wire just to make sure I don't have overdraw issues down a single line. |
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Its getting very expensive because of a monopoly of the technology, or lack or competition, or monopolizing the the industry because of trade secrets and cost of development, to mine a speculative crypto currency.
Because the people developing the miners, are realizing it's easier and more profitable to deal with big farms, or simply mine for themselves, than to deal with every whiney ass customer with a complaint. If spondoolie is smart, they release bulk sales only, and allow only authorized dealers to resell, let them deal with the people. Let spon spend their time on new tech! That philosophy was declared by BFL Josh. Not sure how it's going to work out for them in the long run. decentralized currency = more decentralized more reward = less data center = more reward. please release something sponfoolies so i can get some more equipent. Hey @ChineseSavior, it's nice to see your change of heart ( https://bitcointalk.org/index.php?topic=521520.msg9800379#msg9800379). Unfortunately, it seems that Bitcoin is going towards large scale mega mining by 3-4 companies - BitFury, AntPool ( https://blockchain.info/pools - 20% !), KNC and maybe later also 21e6 (if they'll be able to create a competitive next gen) and SFARDS (with their upcoming 16) If we want to compete in this market, we must create a form factor suitable for rapid mass deployment. If the market conditions will allow it, we might attempt another small form factor, more suitable for the home miner. I've posted something about "share mines" in our thread, this might be another offerings for the little guys. The SP20 turned into a great success in our community, but was it simply not at the price point you would have liked to sell it at in quantity? It almost seems to me "too" well made, only in that it's harder to keep competitive price-wise when it comes to comparing hardware specs when the package you're offering is of greater quality. The new Avalon (apart from being too little too late in the tech department) seems to be suffering a considerably worse fate in the same regard. We lost on the SP20. It came a bit too late and the price crash didn't help. [We don't cut corners (e.g. embedded controller, etc) and we use dc2dc which means that the BOM is higher.] While you may have directly lost on the SP20, the other sales and reputation you built as a company from putting out a product that good is hard to measure. |
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That 5% block right after the 260% block sure is nice  It's actually a little less than it reported to start with 4.58% CKDB recalculates the block info a bit later to confirm the numbers and corrects it. Was another of those rare blocks where bitcoind goes crap and takes forever to reply about the block it has (but it's sent it out on the network ok) Again, the number in the top left of the web site is low until the next block we find resets it. (It's low by ~0.7%) posts like this are why I love your pool. I'm sad as a home miner I really don't have any options to add to my hashing power right now without paying over retail for used gear  |
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That 5% block right after the 260% block sure is nice |
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Does the SP31 need 220?
No, but the hash-rate will be lower due to increased PSU loss. Hmm, I'll have to see if I can get 220 run since there's no more sp20s :p |
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Did anyone try http://pool.bitgencorp.com this pool. I have connected my Spondoolies sp20 jackson (1.3 TH/s) to this pool. Its almost 2 days nothing has been awarded. I tried BTCGuild, Bitcoin affilitate and Slush pool. Not happy with the results. I greatly appreciate for some suggestions I strongly recommend kano's pool, he's pretty awesome, and active on the forums. http://kano.is/ |
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Kind of sad there's not going to be much of an available market for home miners. I'm lucky enough that I can run 10 or 12 boxes without issue.
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I once saw 1680GH on one of my four SP20s (set at 0.75v and 12c intake), but it isn't typical. It also does 1640s at 23c. It hardly breaks a sweat doing it (very little thermal limiting) so there is probably plenty of room to overclock that one, but I'm not interested due to the efficiency loss. That said, that same "overachieving" SP20 doesn't underclock anywhere near as efficiently as the others.
On two others I see closer to 1600-1620GH at 0.75v which I consider typical for a SP20. The last one I have is an "underachiever" which struggles to get 1550GH at 0.75v (with four different ASICs hitting thermal limits in the 630-640s). Although an underachiever at top speed, that one for some reason can underclock far better than the others (at 0.62v I see 0.48w/GH at the wall on that one-- something the others don't even come close to).
Lately I've been running them all at max 0.72v as the optimum profit point for my power rate. This morning's readings (low to high) were 1461-1500-1530-1546.
they are very much like gpus in that respect. 3 indentical gpu's will all have different sweet spots. and all of they power a shit load of extra power when pushed to the max. that said I have 9 sp20's. I never expected them to do 1700 or 1600 I wanted them to do exactly what they do downclock to 1100gh and use .5 watts per gh. I hoped to use 2 per evga 1300 g2 psu as I have quite a few of them from my s-1's then s-3's. I am happy with them . Could you please share your settings to run 2 off an EVGA 1300 G2? I'd like to do the same. you will have room to spare these are lower then you need  you will pull 565 + 565 watts = 1130 watts . after it runs at this for a day or 2 you can bump up just a bit  Thank you, I'll give this a shot tomorrow! That's almost the exact same setup I run on 5 of my SP20s. Three are powered by two 1300G2s and two by a single. |
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I once saw 1680GH on one of my four SP20s (set at 0.75v and 12c intake), but it isn't typical. It also does 1640s at 23c. It hardly breaks a sweat doing it (very little thermal limiting) so there is probably plenty of room to overclock that one, but I'm not interested due to the efficiency loss. That said, that same "overachieving" SP20 doesn't underclock anywhere near as efficiently as the others.
On two others I see closer to 1600-1620GH at 0.75v which I consider typical for a SP20. The last one I have is an "underachiever" which struggles to get 1550GH at 0.75v (with four different ASICs hitting thermal limits in the 630-640s). Although an underachiever at top speed, that one for some reason can underclock far better than the others (at 0.62v I see 0.48w/GH at the wall on that one-- something the others don't even come close to).
Lately I've been running them all at max 0.72v as the optimum profit point for my power rate. This morning's readings (low to high) were 1461-1500-1530-1546.
they are very much like gpus in that respect. 3 indentical gpu's will all have different sweet spots. and all of they power a shit load of extra power when pushed to the max. that said I have 9 sp20's. I never expected them to do 1700 or 1600 I wanted them to do exactly what they do downclock to 1100gh and use .5 watts per gh. I hoped to use 2 per evga 1300 g2 psu as I have quite a few of them from my s-1's then s-3's. I am happy with them . That's exactly what I do with mine phillip, i have 8 of them running off of 4 evga 1300g2s and I get 1.2xx from each without a problem. |
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damn, just hit another one.
Nice to see lady luck with us today.
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Wow just joined this pool yesterday - already 2 blocks solved. Hopefully this is the start of a lucky run! this pool has had some truly amazing lucky streaks. Maybe you are good luck for us all. And another with confirms, you called it man! |
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nice job canaan!!
EEYYYY, there we go! |
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yay, a sub 100 block, hopefully we can get a few more of those |
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I have 6 of these coming, I'd like to run them at the 1000-1100 watt range to optimize my server psu's.
I was considering running 4 off 4000Watts,
But that taps me at max, so was thinking of running the spondoolies, 3 on 4000 watts, which leaves me space to crank them right up if needed.
Maybe even share a pir of ants with them that I can take offline.
Should I max my 4k or leave space to crank them if it's needed?
what is your power cost. the sp20's run really efficient in the 600 to 800 watt range . once you want to do more then 800 watts into the sp20 the hash rate hardly goes up. I would try to run 5 sp20's off the 4000 watts of power you have. I would send about 700 watts to each sp20 which is about 1300gh for each machine. at 9 cents a kwatt or more this makes sense I pay 7.5 cents Canadian. Power supplies are cheap, So I like the idea of having room too go from 800 to 1100 or so when the price increases to make it worth the extra hash. What would I see for 1000watts at the machine for hash? I am looking to sell you the idea of 600 to 800 watt swing , but with 7.5 cent power 700 to 900 watt swing or 800 to 1000 watt swing makes sense. My setup does not allow for me to do 1000 watts with ease. I go from 600 to 750 watts per sp20. at 600 watts I get about 1125 gh at 750 watts I get about 1325 gh there are more then one person using 1000 watts. my guess is 1000 watts puts you in the 1450-1500gh hash rate. I have 3 of them running where I get super cheap electricity right now, all at around 1100 watts and they're averaging 1575, 1590 and 1610 |
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