replacing the stock fan with a single Noctua ($24.5 on Amazon) makes it much less loud and changes the metallic banging sound of the stock fan to whooosh, although temperatures rise to ~60C and you have to hash at 325 mhz(1075 GH). I am waiting for a second fan to add pull and go back to 350mhz or even higher. http://www.amazon.com/Bearing-NF-F12-iPPC-3000-PWM/dp/B00KFCRATCThanks for the suggestion, but It's now summer here and mine would fry with that weak a fan (it was 41 degrees C here a couple of days ago). I happen to have quite a few noctua fans in use for other hardware and some spares. While you can design better fans there is still a certain amount of airflow and air pressure you need to generate and this fan wouldn't cut it. Oh, OK, the temp in my "mining" room is 30-31c and it is an improved 3000 PWM, not typical 2000PWM model; it provides ~171 CFM. I will post here once I add cheap deltas for the pull (klondike_bar suggested putting the scotch tape around the top to make a "shroud", which might help cooling). Anyway, I just wanted to see if I can host more with extra/new fans (with the default fan I simply can't). The NF-F12-iPPC-3000-PWM is actually only 186m³/h which is 110CFM, good static pressure though. The NF-A14 industrialPPC-3000 PWM (140mm version) is closer with 269m³/h which is about 160CFM I almost bought some when I was testing fans for the SP20 but 110CFM wasn't much better than the Scythe 1900rpm  |
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Group buy finished now. You can buy individually @ $595 + delivery or you can buy a pack of 3 @ $498 ea + free delivery. |
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Anyone who knows what the current price drop will do to the development of new 14/16nm finfet chips?
To the development probably not much, but depending on how expensive they are to produce, the selling of the miners based on that process may be affected. |
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i just had a check on my sp30 gui and it thinks its Jan 2 2000
and none of the graphs are running.
still on firmware version: 2.5.12 though
meh, let it mine, stop babysitting  lol, y2k issue ? Can mean that your network is blocking NTP connections.
- ssh to miner
- type "ntpd -d -n -q -p 1.openwrt.pool.ntp.org"
- If you see the text "Alarm clock" - your ntp is blocked. Open it.
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[code][quote author=Biffa link=topic=521520.msg10033328#msg10033328 date=1420373366]
[quote author=raskul link=topic=521520.msg10033145#msg10033145 date=1420372029]
[quote author=Biffa link=topic=521520.msg10033132#msg10033132 date=1420371907]
[quote author=raskul link=topic=521520.msg10032916#msg10032916 date=1420370318]
[quote author=edgar link=topic=521520.msg10032701#msg10032701 date=1420368651]
[quote author=raskul link=topic=521520.msg10032627#msg10032627 date=1420368188]
[quote author=Powell link=topic=521520.msg10025188#msg10025188 date=1420310734]
Is this one of the SP20's at your house? It looks like it will need the SD recovery. If the actual mnt path is gone like wh00per stated earlier it seems to have owned that part of the system. I can't remember the exact fsck command for this version of *nix. Even then I think it will be a lot more of a pain to do vs running the SD recovery.
[/quote]
update:
I have successfully applied the recover from sd card (got christmas lights)
restarted the miner and it starts mining correctly itself now (no need to ./cgminer in ssh)
but still no GUI
it's mining on slush, I can see the worker hashrate OK on slush website
puzzling situation, not having GUI isn't a severe issue, I am happy to leave the miner at slush,
just annoying. I blame the dead S5.
[/quote]
i had the same issue with my first sp20, never got the xmas tree lights and it took 3 attempts at sd recover but finally came back.
weird bcoz sp30 sd recover worked 1st time, with alt-xmas lights...
at least its hashing away, let us know your 24hr avg on slush as & when.
[/quote]
all seems well. I may go back to it and try sd recovery again - maybe tomorrow
after managing to run cgminer manually, i babysat it last night so it's been going ~24hrs
i've never had to babysit an SP-Tech miner but having no GUI isn't a big problem, happy to have it on slush for variance, it just means i can't put it back to mmpool (pool now at 300TH ;D ) via pool options in GUI to ramp up shares on new block round start - i like to fire all 10TH to mmpool early in a round to keep my earnings up.
anyway - ho-hum... i'll do another sdrecovery maybe tomorrow and report back. It's my turn to cook family dinner so i'm concentrating on that today, got the old folks coming round later.
[/quote]
You should be able to modify the pools by editing the cgminer config file.
SSH to log in to your miner, and then use: vi /etc/cgminer.conf.template
[/quote]
yeah i presumed i could just run the full cgminer command line but it doesn't - it still takes it from the .conf
i may give the .conf change a bash when mmpool solves the next block
will let you know
[/quote]
For an easier life you can also use winscp to edit the files
[/quote]
cheers, i've mucked about building p2pool nodes and putting nodes up for altcoins in the past so i should remember the basics of how to edit in terminal or putty but i'll keep it in mind.[/code] My bad, thought was talking to edgar  (just kidding edgar) |
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Is this one of the SP20's at your house? It looks like it will need the SD recovery. If the actual mnt path is gone like wh00per stated earlier it seems to have owned that part of the system. I can't remember the exact fsck command for this version of *nix. Even then I think it will be a lot more of a pain to do vs running the SD recovery.
update: I have successfully applied the recover from sd card (got christmas lights) restarted the miner and it starts mining correctly itself now (no need to ./cgminer in ssh) but still no GUI it's mining on slush, I can see the worker hashrate OK on slush website puzzling situation, not having GUI isn't a severe issue, I am happy to leave the miner at slush, just annoying. I blame the dead S5. i had the same issue with my first sp20, never got the xmas tree lights and it took 3 attempts at sd recover but finally came back. weird bcoz sp30 sd recover worked 1st time, with alt-xmas lights... at least its hashing away, let us know your 24hr avg on slush as & when. all seems well. I may go back to it and try sd recovery again - maybe tomorrow after managing to run cgminer manually, i babysat it last night so it's been going ~24hrs OK 912.9 Gh/s raskulsp201 1.125 Th/s 1.092 Th/s 1.069 Th/s 1.304 Th/s i've never had to babysit an SP-Tech miner but having no GUI isn't a big problem, happy to have it on slush for variance, it just means i can't put it back to mmpool (pool now at 300TH  ) via pool options in GUI to ramp up shares on new block round start - i like to fire all 10TH to mmpool early in a round to keep my earnings up. anyway - ho-hum... i'll do another sdrecovery maybe tomorrow and report back. It's my turn to cook family dinner so i'm concentrating on that today, got the old folks coming round later. You should be able to modify the pools by editing the cgminer config file. SSH to log in to your miner, and then use: vi /etc/cgminer.conf.template yeah i presumed i could just run the full cgminer command line but it doesn't - it still takes it from the .conf i may give the .conf change a bash when mmpool solves the next block will let you know For an easier life you can also use an scp client to download/edit the files if vi isn't to your tastes, not sure what it would be on the mac |
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Can you make it self contained without needing to download and install the composer stuff?
Sorta just copy to web server with php installed and away you go?
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Is this one of the SP20's at your house? It looks like it will need the SD recovery. If the actual mnt path is gone like wh00per stated earlier it seems to have owned that part of the system. I can't remember the exact fsck command for this version of *nix. Even then I think it will be a lot more of a pain to do vs running the SD recovery.
update: I have successfully applied the recover from sd card (got christmas lights) restarted the miner and it starts mining correctly itself now (no need to ./cgminer in ssh) but still no GUI it's mining on slush, I can see the worker hashrate OK on slush website puzzling situation, not having GUI isn't a severe issue, I am happy to leave the miner at slush, just annoying. I blame the dead S5. i had the same issue with my first sp20, never got the xmas tree lights and it took 3 attempts at sd recover but finally came back. weird bcoz sp30 sd recover worked 1st time, with alt-xmas lights... at least its hashing away, let us know your 24hr avg on slush as & when. all seems well. I may go back to it and try sd recovery again - maybe tomorrow after managing to run cgminer manually, i babysat it last night so it's been going ~24hrs OK 912.9 Gh/s raskulsp201 1.125 Th/s 1.092 Th/s 1.069 Th/s 1.304 Th/s i've never had to babysit an SP-Tech miner but having no GUI isn't a big problem, happy to have it on slush for variance, it just means i can't put it back to mmpool (pool now at 300TH ) via pool options in GUI to ramp up shares on new block round start - i like to fire all 10TH to mmpool early in a round to keep my earnings up. anyway - ho-hum... i'll do another sdrecovery maybe tomorrow and report back. It's my turn to cook family dinner so i'm concentrating on that today, got the old folks coming round later. You should be able to modify the pools by editing the cgminer config file. SSH to log in to your miner, and then use: vi /etc/cgminer.conf.template |
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I'd like to overclock, not downclock! Yes, they will last longer, but I will not need them long time. New gear is coming, new upgrades  Have you tried just entering a higher number? |
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Dunno Standardized 6pin is 75watt, but this is much smaller wattage than what it can be pulled thru. I'm now at max ~288w and i want more! If necessary i can look for converging 2*6pin into 1 stronger 6pin. see knc neptune! only see the wrong design from the very first SP20 . There should be a 8x PCI-E.
true. maxing out power rating for the socket is very wrong decision Please continue SP20 related technical discussions in our thread. The manufacture takes 20% margines over the 288 Watt rating. |
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How come it's a s3 group buy?
Because its from November? |
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Fellas you might want to look at bitcoin prices today before you start another group buy.
299 great I am hoping for a drop to 200 . Looks like you will get your wish soon. At this rate, if you buy with btc, its going to be tough buying miners to keep up with the spiralling difficulty. and now I buy into the dropping coins. since I can only buy 1000 usd on coinbase. I buy .25 coins every 4 hours as a hedge. If price goes over 300 I stop buying the coins. And do you stop if the price goes below XXX? |
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Fellas you might want to look at bitcoin prices today before you start another group buy.
299 great I am hoping for a drop to 200 . Looks like you will get your wish soon. At this rate, if you buy with btc, its going to be tough buying miners to keep up with the spiralling difficulty. |
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Unfortunately no screen on SP kit |
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Thanks again for the GB. Just grabbed another 4 units. Not sure where I'll stick them yet, but these last few days have shown me that these are quality units and the SP-T support folks really put forth an effort to help.
Quick question: When the ASIC tab shows its using 890 watts, do I need to divide that by .8 to get an approximation at the wall assuming 80% efficient PSU?
I don't know how it's doing it, but at stock with 2 Corsair HX850, one unit is running 1683 @ 890w. Seems pretty good to me and close enough to 1.7T.
No the PSU is only delivering 80% of what its pulling from the wall to give you 890Watts, its closer to 1120W at the wall |
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The SP31's run on 110V, but the hash rate doesn't meet the specs advertised. That's why 240V or 264V is recommened.
If the price is right, I will commit to 4 units.
So far there's interest for at least 8 units:
me - 2
wpgdeez - 2
Powell -2
Biffa - 2
192 more units to make a GB possible.
Let's see if there's more interest and we can pitch it to SP.
I'd buy a bunch (10 or so) at $1500/pc, if SP does that. I doubt we'd need 200, maybe 100. |
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I'm confused, in the extreme hypothetical proposed here why on Earth would you choose SP20s over a 2 pack of SP31s for $3000?
I misworded so much of that LOL! Meant at retail or even 4k for 2x SP31's I would take SP20's for mining not in a datacenter any day. At home or in our shop (like me) I don't have to worry about being in a rack mount with big PSU. At that price point for anyone with no datacenter access the SP20 any day of the week. At 3k per 2 may not be everyones cup of tea but i think a lot would be interested. No way, even at 4K for a 2pack, even SP30's I'd take rather than a 4 pack of SP20's |
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Edit: I read the rest of the thread. This is not a temperature issue. My bad.
Well it is a bit of a temperature issue, just the other type of temperature and in a very small localised area  My good news tonight is that my SP31 just shut down and I can't get it looked at till tomorrow.  We're ready to assist ... That you Guy?  Hope someone just kicked the cable out or something. I could have got support to do an immediate call out but I've got a new firewall going into the rack tomorrow and everything is being moved around so it can wait. Hopefully nothing serious, otherwise I'll be taking you up on your offer It's me, going to sleep ... You know Zvisha's Skype ... All came back fine, all rearranged and safely behind new firewall... ahh.. feel much better. |
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Lots of SP31 inventory or are they running out? A 2 pack of those for 3k would be a nice New Years sale and on par with the December SP20 $\ghash deal.
Is it possible to start a GB for 2 packs of SP31's or SP35's? If there's enough people interested - eg 100 members / 200 units, the price should become attractive. 2 packs?? I'd be happy with just one!!! I would think not many people have $4000 - $5000 in BTC sitting around for a two pack. M That's why it needs to be priced right so we can't resist  Right now unless they are going directly into a datacenter (or have 208/240 at home (which I'd still lean to the SP20's for Home)) I have 10.4TH/s from 8x SP20's pulling 680-700w each for $4000. All underclocked but if the price were right I would pick up 2 SP31's and put them in our datacenter just because (we own a large IBM Business Partner). I'd be up for a 2 pack of SP31 at $3K but I somehow think thats a bit of a push. |
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