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I'm sure the general conclusion is correct but I'm not sure about the numbers?
The price of a T15 is $840-$65 ($775) plus taxes and shipping (it comes with a built in PSU).
In the non US tariff world we don't have such high taxes.
Bitmain is going to zero. If they even think about IPO'ing it will be a Stand up Comedy show instead of a Road show!
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Yup T15s at $840 minus any $65 coupons you've been given, making it a sub $800 unit.
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'Wu said tests have shown that the chip can achieve an energy/hash ratio of 42J/TH'
The 13.5 S9 was using 0.098W/GH, meaning 98J/TH. This is potentially 2.3 X more efficient. So it's capable of around 31TH using the APW3++ at around 1400W?
But they won't max it out to start with, they'd want to bring out newer, improved versions later on, so perhaps 28TH @ 1,350W?
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Yup, back up to 13.5 after the soft reboot. What a PITA.
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After flashing with the LM my temps dropped 3c each board on average and fan speeds around 3-400. 5 days later and my hashrate has decayed from around 13.5-13.8 to around 12.1-12.5 (S9 13.5). Don't know about Watts pulled as I'm not on site. Will reboot and see if that boosts the hashrate back again.
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S9 13.5Th + P3 Power PSU 2100w -> Fix 650M frimware -> bmminer880
0.08 $/kWh
750m - 15.7th - 1670w profit - $0.38
700m - 14.9th - 1540w profit - $0.44
650m - 13.9th - 1430w profit - $0.44
Overclocking is not profitable?
This is a good question. Has anyone else looked into this, and are you wasting your time OCing these units? |
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has anyone expirience with the awful whining noise of the S9i miners?
i have some as an upgrade, but at a certain point they generate a sound that goes through the bones!
I had one connected to silencing hose at inlet and outlet, but the noise that came from the machine itself was horrible and pain to the ears... When the fans speeded up and or down a bit, it was as good as gone...
bad thing is that it seems to be right at operating speed.
anyone experience this as well?
Yes some of them do this, its infuriating! A well located bit of duct tape near one of the fan blades tends to eliminate the odd harmonic |
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You are seeing chip temps there, not PCB temps. I have PCB cutoff at 90C and chip cutoff at 110C. Miner is in 30-35C ambient air. Fully air cooled, fans set manually to 100% duty cycle. Notice HW% is 0.0000% https://i.stack.imgur.com/mnnUa.pngImpressive but unsustainable? At those temps the case gets so hot, wouldn't the cables begin to melt and life of the miner drastically reduce? Also is there a point to doing this is if extra power draw negates the increased hashing power? It looks like it would be a great setup for liquid cooling though. |
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You can push to the same with this firmware you might just get some hw errors and I do not recommend. Going over 18th generally means 2kw of power draw.
And temps running to 101c! Have you disengaged autoshutoff? |
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No, I am using my own custom firmware, I was just letting you know what I have found to be the limit on a 1600w bitmain PSU. Without power limitations it is stable at 850M and above. https://i.stack.imgur.com/397O1.png18.4 TH??  |
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Interesting.... Thank you! guess I'll have to buy one ..
Never buy 1.......always buy at least 10 haha, you see, I have special hardware that identifies broken chip in the chain. I need to check if it works with S9(i) version. It communicates via serial interface through the 18-port wire that runs from controller board, but I am not sure if different voltage will make my device unusable... hope it won't... I have that too, pretty damn expensive 1. How much did you pay for it? (if you don't mind  ) 2. Have you checked it on S9(i)? I just bought one to be delivered in June, have to check if it works or not... I really would not like to buy miners that I cannot fully test/repair myself... I think you have similar thoughts. So say you've identified a faulty chip. Can you locate it physically, and then do you just replace that chip with any other chip from a replacement board or they are all individually assigned for each slot? No assignment my dude, which made me very happy. Just replace with the fresh one, or with the one unsoldered from another board. But you know sometimes you also have to check voltage values of the other board components, because sometimes other components break too. Ah thanks. How much is this hardware and where can you buy it from? ANd do you get the boards of ebay or another source? |
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Interesting.... Thank you! guess I'll have to buy one ..
Never buy 1.......always buy at least 10 haha, you see, I have special hardware that identifies broken chip in the chain. I need to check if it works with S9(i) version. It communicates via serial interface through the 18-port wire that runs from controller board, but I am not sure if different voltage will make my device unusable... hope it won't... I have that too, pretty damn expensive 1. How much did you pay for it? (if you don't mind ) 2. Have you checked it on S9(i)? I just bought one to be delivered in June, have to check if it works or not... I really would not like to buy miners that I cannot fully test/repair myself... I think you have similar thoughts. So say you've identified a faulty chip. Can you locate it physically, and then do you just replace that chip with any other chip from a replacement board or they are all individually assigned for each slot? |
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Did anyone here in this thread managed to enable the ASICboost on their S9's and try to mine on one of the two pools that support it? The old rumor had it that S9 does support ASICboost under the name "multi_version" (or some such), but it was tried only on the testnet pools.
trying random numbers for bmminer.conf for parameter { ... "multi-version" : "1" } but haven;t noticed any changes. I also have tried this..........it doesn't appear to work The thing about ASicBoost is summarised as follows 'The First rule of Fight club is you do not talk about Fight Club' People don't want to tell you how to do it in case difficulty goes up. |
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is there a way to stop that insane fan ramping up and down?! it is driving me crazy. intake temp is 18 deg Celsius and yet 2 x 13.5T are going crazy since i got them.
Tried all known methods but still...
any ideas?
18 deg Celcius is very good.... just need to fix the fan power. ..and how do you suggest to do that? If you install an older version of the firmware that often fixes it. What will then happen is the miner will run at a fixed temp (say 82c) while the fans adjust accordingly. But no more cycling. |
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I love that LCC is back to SHA256 algorithm that allows older ASICS to mine and Dark Gravity Wave that adjusts difficulty at every block to help reduce network preference for large scale miners or farms from dominating the chain. A major flaw with other coins that will help cause their demise is constantly evolving generations of ASICs, network difficulty gets worse and hardware to mine becomes more expensive to acquire and operate to the stage where the everyday person can't afford them but only large businesses and corporations with the adequate funding so it slowly regresses from Satoshi’s vision of peer-to-peer structure and back into a centralized structure where only the richest can mine. Increasing difficulty trends is killing Peer-to-peer cryptocurrency, LCC is the cure, LCC is a crypto for everyone, Crypto never sleeps.  But doesn't returning to SHA256 also mean that it is prone to very strong centralization over time? How so? Aren't there huge ASIC farms that are able to mine SHA256 and they could take over control for LCC very quickly? if i were to buy enough PSU's my garage would take over LCC. just saying. You can't do much of anything by using PSU's. Just saying |
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I need 6 420$ coupons paying 85 for each of them whoever sells them goes first i can do 1 by 1 or escrow i dont care. Hit me up...
I've got 6 of those, but can't PM you. Try to PM me? |
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Selling a few 350 USD, 220 USD and 420 USD coupons for 35% of its value, 20% if you take them all (25 x 420 USD, 5 x 350 USD and 20 x 220 USD).
I will beat your price, I got 30X350 coupons and 10X420 better to pay me off now before a price war  I see a few of you selling coupons. Looking for a $400+ to buy, if you have 1 or 2 available. I've got 6 x $420 6 x $220 6 x $200 7 x $100 For sale. Offers accepted |
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So has anyone adjusted their Bmminer to activate AsicBoost on AntPool?
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Any one mining this coin? I'm expecting 350+ coins a day according to calculators but only getting 200/250
What hardware are you running? |
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