That's the main thing I'm referring to... during the warmer wether. I had to under clock 4 x S7's batch 8 last week with it 72 to 75 degrees outside because they were getting close to 80 Celcius. It's not issue when it's in the low 50's or below outside.
Ah i see. Maybe the heat there accumulate? I'm just comparing to my S5's, when the fan was full speed and it was 30C+ outside, which is... 86F+, they were running fine if i was dumping the air strait outside so that the ambiant does not accumulate. However i needed the fan running full blast to keep the temps in the low 60s. Having the S7 get close to 80c at lower temp is a bit scary to be honest. I hope mine wont run that hot. |
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I'd be in. I kind of dislike the unlimited tickets option as one person can basically make sure that no one else has a shot.
However, I'd still be in. The rules are yours to set and I'm entirely down for supporting the project in whatever small way I can.
Well if someone decide to throw 1 BTC in there, then maybe Sidehack could use that BTC to give that person one pod in the first place and raffle off the other 2, keeping the rest. Or not, but it would be good for the project. |
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I am in...  Sound good, especially if not too many tickets are sold. Would still be good for development so i could scrounge up 0.02BTC. The pod would need 1-2 PCI-e of power supplied? |
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Yeah... never mind... the 2nd just crapped out on me... like: right now... are those S5's poorly built maybe? or did I get ripped off? Guess that teaches me for not buying the newest model straight from the manufacturer... Now... honestly... how are my chances to get a good model and not have to wait for ever if I were to order a new one from bitmain? (this feels like the crying game...  ) I never had any problems with S5's. Miners that were running before i got them continued to mine(to this day actually). Unless you're using some PSU that is raping them, they should continue working. |
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I noticed these run much warmer than the previouis batches. Obviously due to the 700mhz. I had underclocked a few units that were running hotter than others. This unit was left at default 700mhz. I've since set all units to 650 frequency to cool them down a bit (lower to mid 60c's) In contrast to prior batches these are inferior. I doubt they will have close to the lifespan the others will given the 700 frequencies.  Well, the others were factory clocked at 550, 600 and 625. I say the batch 8 was already over clocked at the factory to 700 and should be at 600 like the batch 6 @ 4.05 TH/s with 135 chips. I have since under clocked the 3 of mine that run hotter than the others to 650. I'm thinking about lowering them to 600 [Especially, when summer time arrives] for the longevity for the rigs. Hmm, but overclocking or downclocking the rig should change nothing on its longevity. It should be merely at what heat they are being run at. Its possible than when the rig show for say 70c, some component is being stressed at 150c+. So lowering the heat one way or another is required to avoid failure. I really don't know what cause so much hardware failure but afaik if you keep them cool, the clock changes nothing. |
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Just wondering how to mine other sha 256 coins then bitcoins on the Cube.
Would need an step by step guide.. if you use bfgminer how to sett it up. Or can you just make a .bat where the slush proxy file is. If so what do you input. ?
There is 0 difference, but you will point your miner to a different pool, where your hashrate will be wasted there. :3 This is the Bitcoin mining support board as well. |
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Hello Everyone, please make sure you have your address in other contact info, I will start payments today.
I will update new info here after few minutes
Does that mean the new API is in?  |
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Phil gave great instructions on trouble shooting. I would also suggest putting in a ticket or email to Bitmain to get ball rolling incase you do need a replacement hashing board.
I would guess they send a list to do aswell. If you wait on getting it to them you might have longer down time (that is if it cannot be fixed which hopefully it can without needing a new hashing board).
I opened a support ticket but still no reply yet, will try emailing them. This post right here honestly worries me. There are quite a lot of S7 problem being reported and i'm looking into buying some. When that get combined with delay, mining time lost, extra cost to ship part back and poor communication/high delays on Bitmain's part, i am wondering if this is a sound investment. Maybe Batch 8 itself is simply a bad batch? yes i believe it could be a "bad" batch or it could just be random bad luck for me & others. I had 2xs7 b8, both of them were mining fine for abt 8 hrs or so but then" 1 of them showed 0 temp & 30 ASIC chips with dashes the other hashrate dropped & lots of HW errors appeared solution, i manage to identify which board that was giving me problems & unplugged them from the controller & PCIE (PSU) the board with 0 temp is easy to identify, the other board that have a low hashrate with lots of HW error was tested individually by just powering each board. both problematic board were on chain #1 (far right) from front of the miner (LAN jack) snapped pix with diagnostics by BMT, emailed them but waiting for reply. I had a b5 board that went nuts too, got a reply within 24hrs, authorised to remove the board to check & send it back to BMT (china). It took about 11 days to reach them due to holidays & weekends + china customs delay. tried couple of things like phil mentioned. all my psu's are in great working conditions but i even swapped them around n tested them. if you think that u might have a bad s7, i'd suggest to try to identify them by just plugging only 1 board to the controller & PCIE (PSU) REMOVE the other 2 controller cable & PCIE (PSU). 3 of my s7's (1 b5 & 2x b8) are running with 2 boards & they're running great. also if you see lesser ASIC chips after a hard or soft reboot, goto miner config page, change the freq, hit save & apply, the chips would be back then change it again to your desired freq. (OC'ing VOIDS your warranty) hope this helps others too. Alright i will keep all of this in mind in the following weeks, i ordered a B8. I hope to be able to do some good tests and to get a reliable unit, but we'll see. |
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I am still looking for everything mentioned. Any S7 Batch, or B8 or B9 Coupons. Also may be interested in picking up a G2/P2/T2 1600w EVGA PSU.
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I GOT shipping info for the 2980 watt should come on tues or weds.
I plan to test the :
2x 2000
2880watt
2980watt
with a pair of avalon sixes at 12.20 volts
then with a single avalon six at 12.20 volts
My s-7 is not available for testing my buddy that has an entire office floor rented got a new sublease deal..
This means he leases 80% and keep 20% for the floor. He also pays 20% of the power so the 13.3 cent full price power is only 2.66 cents a kwatt.
The limits are 1x 15 amp circuit and keep the gear quiet.
So I hooked up 1 s-7 at freq 500 we are getting 4000th at 1000 watts with fan at 32%. Sound is okay power use is okay.
I ran s-3's in his place for 14 months I am hoping to run the s-7 past the ½ ing due to the 2.66 cent price.
Back to this testing.
I hope to get some good numbers and determine the difference between the 3 psu setups once and for all at about the 2000-2200 watt load
and the 1000- 1100 load
What batch miner? If its B8 i could pitch in the B8 data i get, running with ATX with known efficiency range at various load it could give a good benchmark to compare to. Though i'd be on 120v, the difference with 220-240v efficiency should be 2%. |
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Have anybody experience of zwilla.de firmwares for S7 they have very big promises?
Never heard of them. What are they claiming their firmware does? 20% more power (GHS?) 30% less power usage. Firmware that magically improve efficiency by 56%(0.16J/GH)? Yeah i don't think so. |
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Answered in your other thread, why are you posting this again?
Rich
Might be worth specifying, before the thread get nuked for being duplicate; It will run 4 S5 boards, not S3 boards, if that was not clear enough. Op seem to get confused easily since he asked and was answered twice the same question. |
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As the Bitcoin price has more than doubled in the past few months. I believe that miners will not suffer from the bitcoin halving as predicted.
Is this the case? As, if the bitcoin reward halfs, it should be balanced out with the price of Bitcoin?
We will suffer, the price doubling does not mean much since the difficulty doubled as well. No matter what, our BTC earning will be halved overnight and the price will not double overnight. So there will be a rough patch, before things normalize again. |
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Can a buck converter provide variable voltage depending on the clock the miner is set at? Some people said by underclocking it raised their efficiency and that should not happen unless the voltage is variable to an extent or there is more efficiency loss at higher speed.
If it is tied into the main controller then it could be adjusting the voltage, until someone traces the circuit / makes some measurements we will not know. But agreed as we have all discovered just changing the clock frequency and leaving the voltage the same leaves the efficiency virtually the same. What sort of improvement to efficiency have people seen? Rich I look forward seeing whether or not the people who said you could underclock to increase efficiency were right. I did not say anything then because i'm not sure its untrue. Maybe they think raising efficiency is just lowering hashrate/clock/consumption. But we'll see, i think phil or whoever gets a B8 to do test before me will do it, if not i will test it when i receive mine in a week or two(?). |
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Biodom or Anyone else,
Help me remember... Did Batch 6 have 135 chips or 162 chips? My question was never really answered about number of chips. I'm curious if I would get similar efficiency with under clocking as Biodom mentions here with Batch 6 but similar with Batch 8?
Batch 6,8,9 are all 135 chip. Efficiency should be similar so long as the Buck Converter is set to the same voltage, which it may well not be, in all batches? Rich Can a buck converter provide variable voltage depending on the clock the miner is set at? Some people said by underclocking it raised their efficiency and that should not happen unless the voltage is variable to an extent or there is more efficiency loss at higher speed. |
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If the antminer s5+ uses less power than the S5 (as some say the J/GHs is less)!
Isn't this because, the controlling system needs less power.
It only requires one computer for three boards compared with the S5 which requires one computer per one board.
I believe this is the reason why some are confused and suggest that it i smore power efficient, it just needs less power to power the computer.
No its because the chips run at a lower frequency and lower voltage, but there are more of them. The controller use negligible amount of electricity, it really does not amount to 20% of the power if it "control the boards better or not". Its the same reason why the latest batches of S7 have less chips, higher freq and 4.7TH/s. It is because they come overvolted and overclocked. Which means the latest batches are less efficients. Please don't bring up antminer s7. We will have another argument with bitcoin miners about their miners. the first batch was rated at 4.86 THs. Users say that they only got around 7.4THs! Anyway, thanks for the information regarding antminer s5 and atminer s5+s People were supposed to receive compensation for delays and for some B2 miners being send to B1 buyers. Though some users also report not receiving compensation yet. I thought you did not want to talk about it, however? Not here to argue, but no point in making several threads for things that were already discussed in depth either. On that subject, Hashnest.com is still getting 4.86THs of their Antminer S7s. I though tthat both server types (ones sold publically and ones transferred to their sister companies) were the same! Good raffle going on a the moment though, wasted 2mbtc and lost on hashnest.com/luckyhash/running! So the s5+chips were more efficient than the s5s because the s5+ ones were underclocked and s5s was overclocked? Under Volted, thats what increase the efficiency, but it lower the maximum clock they can run at. (You lose some hashrate to gain efficiency) But what RichBC said should still be kept in mind, a poor efficiency design vs a good efficiency design can also help. I don't currently think that alone could of amounted in a 20% efficiency difference, but i did see the buck converter on the S7 so its probably actually true, at least in part, to why those are less or more efficient. |
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Its the same reason why the latest batches of S7 have less chips, higher freq and 4.7TH/s. It is because they come overvolted and overclocked. Which means the latest batches are less efficients.
The fundamental reason why the latest S7 are less efficient is because of the added inefficiency of the Buck Converter, they are not actually overclocked relative to the applied voltage. Rich So you're saying B2/B6 and B8 has the same core voltage, but a 100-125Mhz difference clock? Because people were able to overclock the prior to much higher hashrate while raising the volt, but not as much on the latest batch, suggesting that they were already higher clocked. The buck converter can cause a 17% loss in efficiency? |
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If the antminer s5+ uses less power than the S5 (as some say the J/GHs is less)!
Isn't this because, the controlling system needs less power.
It only requires one computer for three boards compared with the S5 which requires one computer per one board.
I believe this is the reason why some are confused and suggest that it i smore power efficient, it just needs less power to power the computer.
No its because the chips run at a lower frequency and lower voltage, but there are more of them. The controller use negligible amount of electricity, it really does not amount to 20% of the power if it "control the boards better or not". Its the same reason why the latest batches of S7 have less chips, higher freq and 4.7TH/s. It is because they come overvolted and overclocked. Which means the latest batches are less efficients. Please don't bring up antminer s7. We will have another argument with bitcoin miners about their miners. the first batch was rated at 4.86 THs. Users say that they only got around 7.4THs! Anyway, thanks for the information regarding antminer s5 and atminer s5+s People were supposed to receive compensation for delays and for some B2 miners being send to B1 buyers. Though some users also report not receiving compensation yet. I thought you did not want to talk about it, however? Not here to argue, but no point in making several threads for things that were already discussed in depth either. |
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Hello fellow miners!
I'm a neophyte to this hobby but am a quick learner. Need a bit of help please. I bought two used S3+'s and both of them have all of the ASICs on chain one disabled. Is this normal for this model, I don't think so. Thoughts?
No it is not normal. Did you power both blades? All 4 PCI-e connector? Since both of them are having the same problem, my best guess if you plugged only 2 PCI-e of one board and the 2 PCI-e of the other boards unplugged. |
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