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20kwh needs to be divided by a factor of 5 or 6
so if it is grid tied. it means you have 20/5= 4kwatts 24/7/365. at best. to maybe 20/6 = 3.33 kwatts 24/7/365
So you could run a whatsminer m20s. 24 hours a day
that is 68 x 9 = 612 us pennies or $6.12 a day.
so what did the solar cost you ?
a m20s is about 1500 usd.
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cool I will try it. I don't think the new firmware allows it. The sept firmware lets you do it. the nov does not. and after some trial and error both nov and sept firmware are doing lpm. man the nov firmware is really bizarre. it reads -4121 gh hashrate the pool reads 908 gh the kernel log is weird it claims. the mining failed at 23:55 2020-06-05 23:54:29 temperature.c:818:calibration_sensor_offset: Chain[2] chip[40] use PIC middle temp offset=-4, typeID=55
2020-06-05 23:54:29 temperature.c:346:do_calibration_sensor_offset_by_eeprom: New offset - Chain[2] Chip[40] local:0 remote:0 offset:-4
2020-06-05 23:54:29 temperature.c:870:calibration_sensor_offset: Chain[2] Chip[40] get middle temp offset=-4 typeID=55
2020-06-05 23:54:29 asic.c:1153:set_baud: set baud=1
2020-06-05 23:54:29 asic.c:1126:set_baud_one_chain: cmd_buf[0]=0x51090018, cmd_buf[1]=0x2101, cmd_buf[2]=0x11000000, misc=0x2101
2020-06-05 23:54:29 asic.c:1126:set_baud_one_chain: cmd_buf[0]=0x51090018, cmd_buf[1]=0x2101, cmd_buf[2]=0x11000000, misc=0x2101
2020-06-05 23:54:29 asic.c:1126:set_baud_one_chain: cmd_buf[0]=0x51090018, cmd_buf[1]=0x2101, cmd_buf[2]=0x11000000, misc=0x2101
2020-06-05 23:54:29 asic.c:1164:set_baud: read bc write is 0x82001a
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41097818, cmd_buf[1]=0x6161, cmd_buf[2]=0x13000000, misc=0x6161
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41099c18, cmd_buf[1]=0x6161, cmd_buf[2]=0x1a000000, misc=0x6161
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41097818, cmd_buf[1]=0x6161, cmd_buf[2]=0x13000000, misc=0x6161
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41099c18, cmd_buf[1]=0x6161, cmd_buf[2]=0x1a000000, misc=0x6161
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41097818, cmd_buf[1]=0x6161, cmd_buf[2]=0x13000000, misc=0x6161
2020-06-05 23:54:29 asic.c:1429:set_misc_control: cmd_buf[0]=0x41099c18, cmd_buf[1]=0x6161, cmd_buf[2]=0x1a000000, misc=0x6161
2020-06-05 23:54:29 driver-btm-soc.c:6509:bitmain_soc_init: set TICKET_MASK
2020-06-05 23:54:31 temperature.c:2081:detect_startup_environment_temperature: Environment temperature: [38]
2020-06-05 23:54:31 temperature.c:2098:detect_startup_environment_temperature: Enter 10 secs to cool down hash board, 1 times ...
2020-06-05 23:54:42 temperature.c:2081:detect_startup_environment_temperature: Environment temperature: [38]
2020-06-05 23:54:42 temperature.c:2098:detect_startup_environment_temperature: Enter 10 secs to cool down hash board, 2 times ...
2020-06-05 23:54:53 temperature.c:2081:detect_startup_environment_temperature: Environment temperature: [38]
2020-06-05 23:54:53 temperature.c:2098:detect_startup_environment_temperature: Enter 10 secs to cool down hash board, 3 times ...
2020-06-05 23:55:03 driver-btm-soc.c:3884:set_clock_delay_control: set mode 0
2020-06-05 23:55:03 driver-btm-soc.c:3903:set_clock_delay_control: core_data = 0x04
2020-06-05 23:55:03 driver-btm-soc.c:3974:open_core_bm1393: Start Open Core!!
2020-06-05 23:55:09 driver-btm-soc.c:4041:open_core_bm1393: End Open Core!!
chain [0] freq data per ASIC:
IC[000]:1275 IC[001]:1275 IC[002]:1275 IC[003]:1275 IC[004]:1275 IC[005]:1275 IC[006]:1275 IC[007]:1275 IC[008]:1275 IC[009]:1275
IC[010]:1275 IC[011]:1275 IC[012]:1275 IC[013]:1275 IC[014]:1275 IC[015]:1275 IC[016]:1275 IC[017]:1275 IC[018]:1275 IC[019]:1275
IC[020]:1275 IC[021]:1275 IC[022]:1275 IC[023]:1275 IC[024]:1275 IC[025]:1275 IC[026]:1275 IC[027]:1275 IC[028]:1275 IC[029]:1275
IC[030]:1275 IC[031]:1275 IC[032]:1275 IC[033]:1275 IC[034]:1275 IC[035]:1275 IC[036]:1275 IC[037]:1275 IC[038]:1275 IC[039]:1275
IC[040]:1275 IC[041]:1275 IC[042]:1275 IC[043]:1275 IC[044]:1275 IC[045]:1275 IC[046]:1275 IC[047]:1275 IC[048]:1275 IC[049]:1275
IC[050]:1275 IC[051]:1275 IC[052]:1275 IC[053]:1275 IC[054]:1275 IC[055]:1275 IC[056]:1275 IC[057]:1275 IC[058]:1275 IC[059]:1275
2020-06-05 23:55:10 driver-btm-soc.c:5170:increase_freq_by_eeprom_slowly: fetal error: chain[0] freq data over valid max freq 360
2020-06-05 23:55:11 driver-btm-soc.c:7257:bitmain_soc_prepare: bitmain soc init failed.
2020-06-05 23:55:11 util.c:2178:process_version_mask: Pool 0 Version num is 2
2020-06-05 23:55:11 util.c:2178:process_version_mask: Pool 0 Version num is 2
2020-06-05 23:55:12 driver-btm-soc.c:6932:send_job: Version num 2
So over night I ran the modded s9k. ..... via inspect page options and I don't know what the f is happening . I am using team viewer so I can not measure the power drop. yeah hash dropped from 13 to 2 but. it is easy to see really low fans and really low temps  here is one not touched higher hash rate but way higher fans and temp. I wonder just how much I lowered power. A lot for sure but I need to drive up to Clifton to measure the power drop. if power has dropped to 200 watts vs 1300 these are very nice solo mining gear.  |
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I live in NJ I could pay cash. But I need to talk to my partner.
I may want the m20s units.
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raven fork still doing well.
1660ti is good as it is cheap
rx 5700 is very good but cost more.
70$ polaris is best option for it,470 is doing 12-13 mhs hmm. how much power? and I wonder if the 580 8gb is a good option as they are cheap. |
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edit for clarity. This interests me please give me a minute Here is a video https://www.youtube.com/watch?v=U-tLR6sEVQsat 1:37 I took this screen shot note sd card note jumper is moved note I marked off the chip you say is missing. I Think you may have an issue. Does the card fit in correctly? Is the slot like the slot in my video? Note I say in the video sometimes you must flip the card. As the slot was flipped. That is an easy fix. but if that is not your issue I think you may not be able to fix them.  |
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how do you get lpm mod on the s9k? as far as I know the s9k only has 1 speed. I could teach you how to make really quiet s9 s9i s9j I made lots of 2 board units designed to down clock and be very quiet https://www.youtube.com/watch?v=U-tLR6sEVQs |
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spacer June 6 edit. I am getting an s9 upgrade kit. 3 drop in hashboards. If you have spare s9's you could hold them and wait for my test results. The boards are due today. Working firmware will be released to me on Monday. I have agreed to not say the builder's name. I have been told the new boards will have high medium low settings. When I do testing I will test 1 board miner on all 3 speeds 2 board miner on all 3 speeds 3 board miner on all 3 speeds info here and info at YouTube will be posted. if gear is as speed and watts have been told to me. they may be worth holding onto your s9's for a few weeks. Since I don't have boards or firmware or prices. I will leave this thread locked for now. I have told by the builder that They are more efficient and they hash more than the s9e. so they will hash higher than 16.0 th and burn less then 1280 watts Product Glance Value
Version
Model No.
Crypto Algorithm S9 SE
120-K
SHA256
Hashrate, TH/s 16.00
Reference power on wall, Watt 1280
Reference power efficiency on wall @25°C, J/TH 80.00
Adapted AC/DC output requirement, Watt/ Volt 1574 / 12.00
Detailed Characteristics Value
Min Typ Max
Hashrate & Power
Hashrate, TH/s 16.00 16.95
Power efficiency on wall @25°C, J/TH(1-1) 80.00 85.60
Power efficiency on wall @40°C, J/TH(1-2) 84.02 89.90
Reference power on wall, Watt (1-3) 1280 1524
DC input voltage range, Volt (1-4) 11.60 12.00 13.00
DC input current range, Amp (1-5) 106.7 131.4
Adapted AC/DC output power requirement, Watt (1-6) 1417 1574
Hardware Configuration
Quantity of hash chips 180
Quantity of hash boards 3
Networking connection mode RJ45 ethernet 10/100M
Miner Size (Length*Width*Height, w/o package), mm 321.3*129.6*200
Net weight, kg 4.56
Noise, dBA @25°C (2-1) 76
Environment Requirements
Operation temperature,°C 0 25 40
Storage temperature,°C -40 25 85
Operation humidity, RH 5% 95%
Notes:
(1-1) Refers PSU power conversion efficiency of 93%
(1-2) Refers PSU power conversion efficiency of 93%
(1-3) Min condition: 25℃, min J/TH, typical hashrate
Max condition: 40℃, max J/TH, max hashrate
Refers PSU power conversion efficiency of 93%
(1-4) Caution: Wrong input voltage may probably cause miner damaged
(1-5) Typ condition: min reference power, typical DC input voltage
Max condition: max reference power, min DC input voltage
(1-6) Min condition: 40℃, max J/TH, max hashrate,
PSU output power should be no less than the min value to make sure mining stable.
Typical condition: (typical power) = (min power)/90%, leave power output margin for PSU.
Caution: It is strongly recommended that using typical power can make sure your miner can work
well. You can use one PSU to power multiple boards. Do not attempt to power one board with
more than one PSU. All PCI-E ports are required to plug in while powering up the board.
(2-1) Max condition: Fan is under max RPM(rotation per minute).
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this is the latest s9 thread and will stay open this is not bitmain hash boards. the builder has asked me to not reveal whom he or she is. this is more,effficient then bitmain gear. i have a one board and a two board build. edit I am doing 1 board mods only as I have developed an air flow idea that works much better as a one board mod. Teaser for now. Some info is below. photos right is new hash board the pcb is same size as s9 as it needs to fit in an s9 case. note a blocked a serial number. top has 7 caps on pcie jack side of the board. if you could the chips it looks like 51 the older s9 left has 63 chips it has zero caps on pcie jack side of the board.  same as above twisted for a better view  second photo s9 is on bottom and has 6 caps and burnt pcie jacks since it is an old hash board.  So 51 chips vs 63 chips 7 caps vs 6 caps. the smaller shit I left out and won't get into detail with super close ups. |
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[...]
you would be surprised on getting cheap batteries. If you are near a golf course "dead" golf cart batteries are cheap. If I was going to do a small play system I would add 1 panel a bigger one say 300watts. blend it into the 300 watts he has. source some batteries he does not need to run system all the time. Run it 9 hours a day. 600 watts of panels to charger to batteries to inverter to s9 set to 300 watts. which would be 8 volts and 225 on brains. way cheaper then a 24 hour setup. and for 6 hours a day he has a shot to hit a block on solo.ckpool since he is subject to seasonal change. He could do 4 hours in winter 6 hours in spring 8 hours in summer. If he really looked around I would think he could do this for 500 dollars. this never lets batteries run down as he only runs an hour after sunrise. and shuts down 1 hour before sundown. it would be a fun project. I will be doing a thread soon on s9 upgrades here is the link https://bitcointalk.org/index.php?topic=5253561.0note: it is a teaser so no info is on it. |
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I support his decision, it looks better for him and for his local community. I used to think that he abused merit before and I was wrong there. I can understand the pressure he suffered when he was in a community where most of the bad allegations were directed at it. It can also be pressure from the people in that community 
How about TMAN? Wasn't he a merit source?
In the way I see, he is a source of merit, but he disappears without a reason (Covid-19). Also many other users gone, but TMAN is my biggest concern right now. Wow you think TMAN is dead. |
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raven fork still doing well.
1660ti is good as it is cheap
rx 5700 is very good but cost more.
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The ware house owner in clifton has 7 buildings the 2ph with mine costs
lets say 2 k of the bill all the other business using the builds cost say 5k.
the total bill is 7k a month. he got the long deal til 2021 oct 1. he charges his renters 7k for power so he pays 0 cash for the bill.
he paid zip for the gear.
and he clears 1 ph of mining every day.
he had no customer fo the spare power so would you want to break even on the monthly power bill or would you want the coins you get from us.
his other renters still pay a decent power rate even with the markup he charges them.
So we all gain. Downside covid-19 hurt renters income. and now threat of riot damage.
of course mining today is not making what it did last month. but it will sort out over time.
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I had a long article linked to bitcointalk years ago about Chinese ghost cites.
Here is the short of it there where places in China empty apartment complexes and the like.
So how about this example 10x 20 story apartments standing empty but operational. that is 200 stories with say 10 apartments or 2000 empty apartments. In the winter running gear to keep them warm is feasible.
Years ago my wife and I lived in an apartment in Astoria New York
We had a major black out everything was dark. I said to my wife lets finish the ice cream before it melts.
I opened the fridge and it worked. I said wtf I later tried to figure out how it was hot wired and what it was hot wired to. I found out it had 10 gauge wire. But never could figure out how it was hooked up.
Since it was long before bitcoin I just ran my fridge for free .
You would be surprised how much free power is out there.
I had a buddy that was a building engineer in a few malls and later in the empire state building. He had access to lots of power in nooks and crannies of those buildings. These are smaller example of mine and hold people.
One or two or three machines are not much but New York City has thousands of spots that could be doing a small operation.
So it is no longer small it is 20000 miners. who cares if it is all s9's 20,000 x 14 = 280000 th or 280 ph
these people are around. smaller than me. with my 2000 th on a 50-50 split deal. which is 1000 th for free.
they are a motorbike on the highway. I am a van.
Yeah the big fleet it 100 to 1000 full size greyhound buses.
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If you have 0.0032 cent power that is under 1 us penny .
you will make money.
Now you also need decent internet.
Here comes the next part you need gear that works .
If your bitmain gear breaks you almost certainly will lose weeks getting it repaired.
Other issues some countries restrict mining and mining may get you in trouble.
I would ask you.
How much power do you have? 4 kilowatts 24 hours every day is close to 100 kilowatts in a day or about 100 x 0.0032 = 32 cents
your miner earns about 5 or 6 usd a day so
5- 0.32 = 4.68 a day in 100 days 468 dollars. next 100 days maybe 368 next hundred days maybe 268
that adds to 1104 in 300 days. you could make money with this unit.
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You don't have to be large I can mine and hold due to my deal.
I know others with the same setups.
You need to find someone with a power contract that he is stuck with.
Many people buy a 1 year 1 mega watt contract to something like that and get stuck with the contract.
My host has a three year power deal. He splits coins with me. my gear is paid off. so I can mine and hold the entire year. if I choose to.
I am small about 2 ph. but I know a 10ph guy same setup. he is sitting on 200 s17pros giving him just over 10.6 ph
he gets 5.3 ph worth of coins. the guy with excess power gets 5.3 ph worth of coins he is obliged to pay his power contract for next 16 months.
the owner of the miners can simply hold coins.
I know a third guy with a 1 ph deal.
all three of us have the gear paid off
all three of us have a mix of s9,m10,m20,s17,a1066
we can sit on the gear and just take in coins for about 13 to 18 months.
If I know three guys in NJ like this there are more scattered about.
I would think it could be 5% of the worlds hash is being power by people with failed power contracts.
my guy lost a lot of freezers when an ice cream guy shut down. so he had spare power. things went sideways with cover-19 and now the riots. we did not and may never build the big solar array.
buy solar still has the 1 acre array for his home and some mining.
but the clifton place may be around for 14 months and then shut down.
hard to say. If a huge rally happens we will do very well if it limps a long it will most likely die off.
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Yeah. the box is well packed. the foam is good quality. but the force generated with a 6 foot drop is quite a bit.
and if you drop the box flat on the bottom there will be no apparent damage to the box or the miner inside.
But every heat sink will be subject to a g-force from the drop then stop.
to make it more wrong is that if the gear is in a really cold spot ie during wintertime the gear is allowed to travel in 0c or 32f or lower transport bays.
So now the glue/heatsink past is hard stiff and brittle so now drop it 6 feet and the box has no damage the unit looks fine . I could guarantee that multiple glue/paste/epoxy heatsink joints now have micro damage . Same as solder joints.
Would love to demo that test. As you know it happens.
edit To be clear 0c or 32f makes the heatsink to chip joint a bit more brittle and easier to crack then it would be at 20c or 68f
And of course at -20c or -4f it would be a bit stiffer and even more brittle.
So if the fedex/dhl/ups truck drops off a unit on your porch in the winter time it is very likely the chip to heatsink seal if cracked was cracked right at your door step.
Here in NJ I have received hundreds of pieces of gear from China and sometimes the guys drop the gear off when I am not home.
Even if the guy drops it 3-4 feet to the step in the dead of winter it is not good for the heatsinks.
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1400 counted shipping to USA.
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and boom. diff is now 13.7
my miners made 1800 x 0.00000883 = 0.015894 btc a day. of which I get 25%
today they make 1800 x 0.00000964 = 0.017352 btc a day of which I get 25%
so in theory I will earn 1.58337 btc over the next year. with full flat diff.
the ath diff was 16.5. we are at 13.7
lets see how this unfolds.
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