great work as ever mdude77, i'll install it on my win machine now and let you know EDIT. doh. scrap that. miners are not on the same network. If you can reach it through your browser it should be reachable via my app. M Trying SP20 via API on my LAN, set the allowed IP address in cgminer but not seeing anything on the app. Tried via HTTP as well, nothing showing, however it did reboot my miner via ssh!  |
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Hi
Is there any interesting offer for the miners? what is hosting fee and equipment now?
The only offer at the moment seems to be to swap any A1 miners for the equivalent hash rate of S3+ in a more reliable hosting location. However after proposing the plan Mr Lee has gone quiet. |
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notlist3d
I appreciate this will produce alot of heat and i think i have got this covered by building a few custom rigs of fans, the cage has cold aisle so forcing nice cold air through to the back will hopefully help things.. As they say the proof is in the pudding! I will be keeping a close eye when they first boot up.
SFMiner
I agree its rather alot of money... But from reading around you need to put a small chunk in to get a decent ROI. I have had a look at the offers you detailed, what is your opinion on the better provider.. Spondoolies. or a S4?
I currently have a few SP10 running testing the waters and if they come back with the projected results then ill be jumping in with both feet!
As for power i will be using already un used power so the cost is pretty much 0. Which is great and will mean my ROI is alot quicker!
Thanks
Why don't you make more reliable money by offering to host colocated miners for people in the UK? Seems that your company T K Group UK seems legit, plus there is a severe shortage of well priced miner colocation in the UK If you can charge £50-60 per U per month then I think you would corner the market here. |
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MinersLab Ltd. 7 High St. Andover, Hampshire SP10 1LJ United Kingdom   |
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I understand the limits etc but why is one PSU going to 1360 and the other stuck at 1250?
Without voltages on the two power supplies no one can say for sure. if one power supply has 217V and the other 218V they can behave like that. An 1-2V between power supplies can happen due to bad contacts (i.e. higher resistance), loose plug etc. What voltages are on your dashboard? 209/210 |
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Could be because I'm on 210V rather than 240V?
Socket Voltage
209/209 volt
Max Watts
1360 / 1360
PSU's are Emerson
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1252w[1252 1248 1248] (->1211w[1211 1211 1211]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1408->1252w[1248 1244 1252] (->1174w[1174 1174 1174]) (lim=1250) 0c cooling:0/0x0
Yes, it's because you're on 208V. Notice that your machine is configured to use 1360W max per PSU, but the software is artificially limiting it to 1250W. That's because these PSUs are less efficient (i.e. generate more heat) on lower voltages, so they can't deliver as much power, so Zvi hard-limited them in order to reduce the chance of PSU failure. Spondoolies hasn't done much testing with 208V, so they don't know what the PSU limits should be, but they know 1250 is safe. If you want to try to squeeze more performance out of it, you can bypass the 1250W limit with echo 1 > /etc/mg_ignore_110_fcc Just make sure to reduce your PSU limits in the Settings page first. My suspicion is you'll be able to get about 1280W to 1330W out of those PSUs at that voltage, but I've never tried. 1360W is probably too high. Yet wierdly on my SP30's I was getting between 1330 and 1360 on the same PSU's and the same power circuit. I wonder if the SP31's have more conservative limits on the PSU's I thought they would have less because the claimed TH output was higher needing more power to get there etc. Update: Upgraded to 2.5.33 and now the bottom PSU runs at 1360 but the top is stuck at 1250 still, Hashrate nearly 4.7TH Going to manually set top PSU at 1330 and see if it sticks. (Top and bottom being how they are shown in the interface and asic stats) 1330 didn't work, top still lim=1250, wierd.
Uptime:447 | FPGA ver:62
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1244w[1244 1244 1244] (->1214w[1214 1214 1214]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1488->1360w[1352 1356 1360] (->1257w[1257 1257 1257]) (lim=1360) 0c cooling:0/0x0
Your limit of 1250 is because your voltage is under 218V. If you want to force more, you can use the fcc_disable flag people mentioned here - note that that operation is not covered by our warranty (!!!) - that is stretching the PSU manufacturers recommendation. I understand the limits etc but why is one PSU going to 1360 and the other stuck at 1250? |
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I noticed that when you place an order at SPT, there is some space where you can enter discount coupons.
Are they really offering discount coupons ?
I just bought 2 SP20, I would buy 2 more if they would offer me some discount coupons
They have done in the past, mainly if the units didn't perform to spec or is late shipping. We've also had an existing customer coupon before as well. I'm also pretty sure that if you buy a big enough order that you will get a discount code. But this isn't Bitmain, and there are good reasons why not  |
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Could be because I'm on 210V rather than 240V?
Socket Voltage
209/209 volt
Max Watts
1360 / 1360
PSU's are Emerson
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1252w[1252 1248 1248] (->1211w[1211 1211 1211]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1408->1252w[1248 1244 1252] (->1174w[1174 1174 1174]) (lim=1250) 0c cooling:0/0x0
Yes, it's because you're on 208V. Notice that your machine is configured to use 1360W max per PSU, but the software is artificially limiting it to 1250W. That's because these PSUs are less efficient (i.e. generate more heat) on lower voltages, so they can't deliver as much power, so Zvi hard-limited them in order to reduce the chance of PSU failure. Spondoolies hasn't done much testing with 208V, so they don't know what the PSU limits should be, but they know 1250 is safe. If you want to try to squeeze more performance out of it, you can bypass the 1250W limit with echo 1 > /etc/mg_ignore_110_fcc Just make sure to reduce your PSU limits in the Settings page first. My suspicion is you'll be able to get about 1280W to 1330W out of those PSUs at that voltage, but I've never tried. 1360W is probably too high. Yet wierdly on my SP30's I was getting between 1330 and 1360 on the same PSU's and the same power circuit. I wonder if the SP31's have more conservative limits on the PSU's I thought they would have less because the claimed TH output was higher needing more power to get there etc. Update: Upgraded to 2.5.33 and now the bottom PSU runs at 1360 but the top is stuck at 1250 still, Hashrate nearly 4.7TH Going to manually set top PSU at 1330 and see if it sticks. (Top and bottom being how they are shown in the interface and asic stats) 1330 didn't work, top still lim=1250, wierd.
Uptime:447 | FPGA ver:62
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1244w[1244 1244 1244] (->1214w[1214 1214 1214]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1488->1360w[1352 1356 1360] (->1257w[1257 1257 1257]) (lim=1360) 0c cooling:0/0x0
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i can almost hear the busy hands back to work in the shipping section of SP-Tech with the parcel tape and the boxes. 1 x SP20 and 1 x SP31 pleeeeeease.  SP31? Thought you'd get a SP35? |
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Could be because I'm on 210V rather than 240V?
Socket Voltage
209/209 volt
Max Watts
1360 / 1360
PSU's are Emerson
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1252w[1252 1248 1248] (->1211w[1211 1211 1211]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1408->1252w[1248 1244 1252] (->1174w[1174 1174 1174]) (lim=1250) 0c cooling:0/0x0
Yes, it's because you're on 208V. Notice that your machine is configured to use 1360W max per PSU, but the software is artificially limiting it to 1250W. That's because these PSUs are less efficient (i.e. generate more heat) on lower voltages, so they can't deliver as much power, so Zvi hard-limited them in order to reduce the chance of PSU failure. Spondoolies hasn't done much testing with 208V, so they don't know what the PSU limits should be, but they know 1250 is safe. If you want to try to squeeze more performance out of it, you can bypass the 1250W limit with echo 1 > /etc/mg_ignore_110_fcc Just make sure to reduce your PSU limits in the Settings page first. My suspicion is you'll be able to get about 1280W to 1330W out of those PSUs at that voltage, but I've never tried. 1360W is probably too high. Yet wierdly on my SP30's I was getting between 1330 and 1360 on the same PSU's and the same power circuit. I wonder if the SP31's have more conservative limits on the PSU's I thought they would have less because the claimed TH output was higher needing more power to get there etc. |
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I have question about SP20, the front fan looks quite cheap 120mm fan, if i´m not mistaking that fan gives the most noise, what if i could replace it with ultra quiet fan on same size, would it work? less noise?  Fan isn't cheap. It's loud for two reasons. Firstly many fans have unique audio properties depending on how they are constructed. This is often referred to as the tone of the fan. The y-s tech fan used has a quite mechanical noise which changes in pitch and volume as the speed ramps up. Secondly this fan pushes 220CFM, that is a very fast 12v fan. That's a lot of air being sucked through a metal grill over the components then out through another grill. Yes you can replace it but the fan you replace it with will most likely be just as loud or not as fast and if it's not add fast if won't cool as well. Lastly it uses a non standard fan header so anything you use will either have to be supplied onto the original connector or the wire running out side the casing to a fan adapter on one of the molex plus on your psu. That's what I have done. Testing a few different fans so far but none have hit the sweet spot for noise and cooling. |
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They are shipping with Emerson psus |
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Could also be that the pi just doesn't have enough grunt to run two copies of cgminer at the same time.
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Anyone OCed the SP20 ?
Can anyone tell me how to OC it ?
Thank you !
You would need to push the Max Watts up to 288 and slowly increase the max voltage. But it all limited by the max temps the ASICs are set to which is 125°C so alot depends on the temp of the ambient air you are pushing through the unit. For OC I would imagine you need sub 15°C ambients If the ASICs get near 125 they will throttle back. |
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SP31 also arrived and is hashing but not getting anywhere over 4645GH  its within the +/- 10% range but I was hoping for more +10% than -10%  If you're using 220V or greater, you should change the PSU limits on your SP31. If you have Murata power supplies, you should also ssh in and run this: echo 1 > /etc/mg_ignore_110_fcc Depending on your ambient temperature, voltage, and power supplies, you may be able to set your PSU limits to somewhere from 1300 to 1370. That can improve performance by as much as 200 GH/s. Keep in mind that Murata power supplies don't recover from overload as nicely as Emersons do, so if you have the Murata type, make sure to give them a bit more headroom from the overload point. Could be because I'm on 210V rather than 240V? This is how its running currently: Temp Front / Back T,B
23 °C / 63,70 °C
Socket Voltage
209/209 volt
Fan Speed
80
Start Voltage
0.655 / 0.655
Max Voltage
0.75
Max Watts
1360 / 1360PSU's are Emerson
Uptime:27669 | FPGA ver:62
-----BOARD-0-----
PSU[EMERSON1200]: 1376->1252w[1252 1248 1248] (->1211w[1211 1211 1211]) (lim=1250) 0c cooling:0/0x0
-----BOARD-1-----
PSU[EMERSON1200]: 1408->1252w[1248 1244 1252] (->1174w[1174 1174 1174]) (lim=1250) 0c cooling:0/0x0
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I've thinked it was in China.
Maybe I misread it.
Yep you did  In other news my Sp20E arrived finally and I didn't get charged VAT SP31 also arrived and is hashing but not getting anywhere over 4645GH its within the +/- 10% range but I was hoping for more +10% than -10% Running at 1360 to get the tuning working, might increase over time maybe.  |
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Works great with the SP20
Got any closer to a new release chaps?
Sure fine with the SP20-s? Maybe any info about the S3-s? If can handle both I'll give a try. Yes if you use the development git |
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 Loving the cold weather This is right after a reboot btw Must be running it outside? I'm thinking of doing the same, but I'm concerned about the dust. M More concerned about the rain myself |
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How you got to .27 I don't know  Yeah, it's strange. I only upgraded it a few days ago too....... I've got 2.5.27 on mine |
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For monitoring I use and have always used Cryptoglance http://cryptoglance.info/The guys who develop it have stopped for a while, probably because of lack of interest but for me it works great. I run it on my Synology NAS but you can run it on windows or Linux You have to use the development git but it seems great. Looks like this: http://s25.postimg.org/9zokpqscv/crypto2.pngIts not an application, its a web site you run. But it also can monitor your wallets addresses and balances and most pools. It would be great if we could get the developers actively working on it again. Maybe if enough of us give them encouragement and a few small tips they will I love it. you have all the pretty things. pretty boy biffa Down laddie! |
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