Even if you're running your S9s in normal mode at 90W/TH, and you're paying 10c/kWh for power, the price would need to fall below $37,000 at the current diff to be unprofitable. So I don't think anyone is turning off gear because it is not profitable anymore.
People are buying S9s even in Europe, which means they are running them at way higher power rates than just 10 cents. Kwh cost Minimum Price 5c 25k 6c 25k 7c 30k 8c 35k 9c 35k 10c 40k 11c 45k 12c 50k 13c 50k 14c 55k 15c 55k 16c 60k 17c 65k That is quick math, ignoring everything between those numbers, so for example, 16 cents could still make a tiny profit between 60k and 55k, but the profit would be too small anyway, and I used 1250w to 14th which is about 89w/th, so when the price goes below 50k everything above 13 cents becomes unprofitable, I can only imagine that there are a good amount of gears that run at above 10 cents khw, of course we can't be certain that they will shut down right after the price crosses their profit-line, and they could just mine at a lose hopping that coin prices will go higher soon. But I could see people taking gear offline to sell it.
You are right, selling is another factor, but judging by the listing I see on the telegram, there does not seem to be any major re-allocation of gears, a few months back we see WTS/WTB orders of 20,000S9s for example every once in a while, things like 3,000 T71 were every day's usual, the past couple weeks have been really quiet, today's listing is all about fans and some used PSUs.  One of my Malaysian friends said he can't source any reasonable quantity of S9 in China, they say some Russian whales took everything a few weeks ago, to me, it seems like the selling was over, and the majority of people who now have a mining gear that's generating these instance profits will not likely going to sell, I mean at least the whales that make the difference not the average joe with his 5 S9s, although I do believe that pretty soon they will start to unload. But again, we don't know what we don't know, we are just throwing some speculations around and all that matters is the fact that difficulty is staying flat. |
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I spoke to one of Vnish devs (Marc) and he also believes what you think is true, in other words, the voltage settings are stored on the e-prom, he also said that Vnish ignores the e-prom completely in that regards, which means (in theory) you can mix hash boards with different e-prom stored values, but since that isn't the case, I am still trying to investigate the matter.
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الحمد لله انك استطعت الحصول على اموالك, خبر مفرح. ولكنهم طلبو مني اخذ سكرين شوت...الذي لا يمكنني أخذه الا في حال تمكني من الدخول للحساب و الذي يكون أيضا عن طريق البريد الالكتروني و تطبيق غوغل..  هدا يعني ان اي شخص يمتلك الوصول الى الايميل و 2FA يمكنه سحب اموالك, مما يعني ان طلب كلمة مرور التداول لاقيمة له من الناحية "الامنية" وهدا يدل على 1 من 2 1- الشخص الذي صمم بروتوكول الامان للمنصة شخص "متخلف عقليا". 2- المنصة تعول على ان البعض او الكثير من المستخدمين لن يقومو بطلب اموالهم بعد قراءة كلمة KYC وسوف يتركون اموالهم لكي يتسنى للمنصة اخدها بعد مرور عدة سنوات. |
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Well, of course, this wouldn't be easy, it says: While that’s preheating, start removing the heatsink and any other plastic parts on your video card. You essentially want the card naked, with nothing but the PCB and rear bracket While that is obvious, I seem to have ignored that when I thought about baking those hash boards, many components on the hashboard will melt at 198c, so this isn't a simple operation, removing the plastic 18pin data ribbon cable alone is going to take me a long time (I have shaky hands when I deal with things like that). With that being said, if someone trusted here tries that and it works, I could hire someone to remove all those components that need removing and try the trick out, but without any reviews from other miners, this would be a waste of time, efforts, probably an oven, and a wife. |
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2021-02-23 17:05:52 thread.c:968:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 0, require 65, failed times 1
2021-02-23 17:05:53 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 0, chip = 14, reg = 0
2021-02-23 17:05:53 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 0, chip = 14, reg = 1
2021-02-23 17:05:53 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 1, chip = 10, reg = 0
2021-02-23 17:05:54 thread.c:996:asic_status_monitor_thread: chain 2 can't get enough hashrate reg val for 0 times.
2021-02-23 17:05:54 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 1, chip = 10, reg = 1
2021-02-23 17:05:54 thread.c:968:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 0, require 65, failed times 1
2021-02-23 17:05:54 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 2, chip = 54, reg = 0
2021-02-23 17:05:54 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 2, chip = 54, reg = 1
2021-02-23 17:05:55 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 3, chip = 50, reg = 0
2021-02-23 17:05:55 temperature.c:838:get_temp_info: read temp sensor failed: chain = 2, sensor = 3, chip = 50, reg = 1
I have a similar issue which I posted about just a few minutes ago, mind you the board that gives me this error was a dead board which I froze in the freezer, worked fine for a while, and then started to throw these temp sensors errors, so in other words, chances are this is a dead hashboard. We know that a loose heatsink causes temp sensors not to read, but that usually comes along with some missing asic chips, but the overall temp sensor issues do not mean the sensor is bad, it means the hash board is dying or otherwise, dead. You could get lucky with custom firmware, I want to try that on the miner I was testing but for some stupid reason when I removed BraiinOS it flashed the latest Bitmain firmware instead of the MP test so now I need to go get that miner and Sdcard my way into it, but I would without a doubt test Vnish when I have the time for that. Should I just install a new firmware and change the max temp for the chips? Because it can't rly be that high when the other boards are fine?
The other boards are not fine, the nearest sensors to the exhaust fan are reporting 86c, I wouldn't be surprised if the middle board is at or above 90 or hot enough to trigger the firmware to shut it down, so this could be more than just a temp sensor glitch, it could be that chain is actually running too hot, so I would fix that part first, and once you are certain the board isn't getting hot and it's just a bad sensor, maybe you could increase the max temp by a little, but be careful, if the board does indeed run way too hot it could melt and set the whole place on fire. |
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Here are some plots for the last 3 epochs I made using the data from LoyceV's file...
Nice analysis, I wish the source of the data was more accurate, I believe Kano and/or CK would have such data since they both have mining nodes running, I suppose they keep a record of when they received every block regardless of the timestamp on the block itself. If someone was shutting down 6EH of S17s at 5c power, they'd only be giving up $69,700 per hour.... lol.
What's 70k between fellow miners? 
Ok price dropped a nice 23%, many things have changed from the last 2 epochs, hard to assume why didn't phill theory apply this time, anyway, I am happy to see us cool down and with some potential of a drop in difficulty which is massive. Latest Block: 671863 (11 minutes ago)
Current Pace: 94.0643% (536 / 569.82 expected, 33.82 behind)
Previous Difficulty: 21434395961348.92
Current Difficulty: 21724134900047.27
Next Difficulty: between 20450514442221 and 21117763283211
Next Difficulty Change: between -5.8627% and -2.7912%
Previous Retarget: last Friday at 11:56 PM (+1.3517%)
Next Retarget (earliest): March 6, 2021 at 9:42 AM (in 10d 10h 48m 18s)
Next Retarget (latest): March 6, 2021 at 9:08 PM (in 10d 22h 13m 54s)
Projected Epoch Length: between 14d 9h 46m 31s and 14d 21h 12m 8s
Going with the assumption that this is accurate, 5% of the total hashrate from the last epoch is 8EH, since this can't be the 19 series since those are still profitable even with high rates of power, let's assume those are old S9s and T17s, so maybe in the range of 70w/t per miner on average, so anywhere between 25-30th per miner in respect to w/th, this means at least 266,666 (quarter of a million) are not profitable below 50k. The above is far from accurate obviously, but it's an indication that the majority of the hashrate does not come from the new generation miners, or else, 20% in price shouldn't shake anybody, but to shake out those many gears, well. maybe this explains why I failed to source any S9i for one of my clients the past couple of days in China. |
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Has anyone considered putting their bad hash board to oven as some people do for GPUs? In hopes of re-soldering it.
I have plenty of dead hash boards to test, give me the oven receipie and I'll cook the hell out of them. The science behind it as explained to me years ago.
Things shrink when cooled. The boards shrink at one rate, the wire traces in the board shrink at another. The chips shrink at one rate the solder connections at another.
We are talking about fractions of a % of a mm. BUT, something that was just on the edge at room temperature will at times start to work.
That explains it very well.
Update: The 2 hash boards are working just fine still, I also noticed one of the boards that came back to life and then died now shows full Asics (65 asics) but it has a temp sensor error 2021-02-23 19:04:14 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[0]: find 65 asic, times 0
2021-02-23 19:04:25 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[2]: find 65 asic, times 0
2021-02-23 19:04:30 driver-hash-chip.c:266:set_uart_relay: set uart relay to 0x330003
2021-02-23 19:04:30 driver-btm-api.c:435:set_order_clock: chain[0]: set order clock, stragegy 3
2021-02-23 19:04:30 driver-btm-api.c:435:set_order_clock: chain[2]: set order clock, stragegy 3
2021-02-23 19:04:31 driver-hash-chip.c:502:set_clock_delay_control: core_data = 0x34
2021-02-23 19:04:31 driver-btm-api.c:1892:check_clock_counter: freq 50 clock_counter_limit 6
2021-02-23 19:04:31 voltage[0] = 1980
2021-02-23 19:04:31 voltage[2] = 1980
2021-02-23 19:04:31 power_api.c:226:set_working_voltage_raw: working_voltage_raw = 1980
2021-02-23 19:04:32 temperature.c:340:calibrate_temp_sensor_one_chain: chain 0 temp sensor NCT218
2021-02-23 19:04:33 temperature.c:340:calibrate_temp_sensor_one_chain: chain 2 temp sensor NCT218
2021-02-23 19:04:33 uart.c:72:set_baud: set fpga_baud to 12000000
2021-02-23 19:04:34 driver-btm-api.c:293:check_bringup_temp: Bring up temperature is 21
2021-02-23 19:04:34 thread.c:1378:create_check_miner_status_thread: create thread
2021-02-23 19:04:34 thread.c:1368:create_show_miner_status_thread: create thread
2021-02-23 19:04:34 thread.c:1348:create_temperature_monitor_thread: create thread
2021-02-23 19:04:34 frequency.c:514:check_bringup_temp_dec_freq: dec freq = 0 when bringup temp = 21 dec_freq_index=0
2021-02-23 19:04:34 freq_tuning.c:183:freq_tuning_get_max_freq: Max freq of tuning is 650
2021-02-23 19:04:34 driver-btm-api.c:1765:send_null_work: [DEBUG] Send null work.
2021-02-23 19:04:34 thread.c:1338:create_asic_status_monitor_thread: create thread
2021-02-23 19:04:34 frequency.c:1110:inc_freq_with_fixed_vco: chain = 255, freq = 500, is_higher_voltage = true
2021-02-23 19:05:58 power_api.c:352:set_to_voltage_by_steps: Set to voltage raw 2090, step by step.
2021-02-23 19:05:59 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 19:06:01 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 20.817602
2021-02-23 19:06:02 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 20.720663
2021-02-23 19:06:02 power_api.c:53:_get_avg_voltage: average_voltage = 20.769132
2021-02-23 19:06:02 power_api.c:71:check_voltage: target_vol = 20.90, actural_vol = 20.77, check voltage passed.
2021-02-23 19:09:27 frequency.c:1152:inc_freq_with_fixed_step: chain = 2, freq_start = 500, freq_end = 520, freq_step = 5, is_higher_voltage = true
2021-02-23 19:09:35 frequency.c:1181:inc_asic_diff_freq_by_steps: chain = 0, start = 500, freq_step = 5
2021-02-23 19:09:41 frequency.c:1181:inc_asic_diff_freq_by_steps: chain = 2, start = 520, freq_step = 5
2021-02-23 19:09:44 driver-btm-api.c:765:set_timeout: freq = 550, percent = 90, hcn = 44236, timeout = 80
2021-02-23 19:09:44 power_api.c:310:set_to_working_voltage_by_steps: Set to voltage raw 1980, step by step.
2021-02-23 19:09:49 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 19:09:50 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 19.727040
2021-02-23 19:09:51 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 19.630102
2021-02-23 19:09:51 power_api.c:53:_get_avg_voltage: average_voltage = 19.678571
2021-02-23 19:09:51 power_api.c:71:check_voltage: target_vol = 19.80, actural_vol = 19.68, check voltage passed.
2021-02-23 19:09:51 thread.c:1373:create_check_system_status_thread: create thread
2021-02-23 19:09:52 driver-btm-api.c:2618:bitmain_soc_init: Init done!
2021-02-23 19:09:52 driver-btm-api.c:222:set_miner_status: STATUS_INIT
2021-02-23 19:09:56 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 19:09:57 frequency.c:205:get_ideal_hash_rate_GH: ideal_hash_rate = 45227
2021-02-23 19:09:57 frequency.c:223:get_sale_hash_rate_GH: sale_hash_rate = 43000
2021-02-23 19:10:00 driver-btm-api.c:1496:dhash_chip_send_job: Version num 4.
2021-02-23 19:10:00 driver-btm-api.c:1644:dhash_chip_send_job: stime.tv_sec 1614107400, block_ntime 1614107373
2021-02-23 19:10:04 thread.c:1273:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 63, require 65, failed times 1: xxooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo
2021-02-23 19:10:05 thread.c:1293:asic_status_monitor_thread: chain 2 can't get enough hashrate reg val for 0 times.
2021-02-23 19:10:23 thread.c:1273:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 5, require 65, failed times 1: ooooo xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx
2021-02-23 19:10:24 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 0, chip = 14, reg = 0
2021-02-23 19:10:24 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 0, chip = 14, reg = 1
2021-02-23 19:10:24 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 1, chip = 10, reg = 0
2021-02-23 19:10:24 thread.c:1293:asic_status_monitor_thread: chain 2 can't get enough hashrate reg val for 0 times.
2021-02-23 19:10:25 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 1, chip = 10, reg = 1
2021-02-23 19:10:25 thread.c:1273:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 5, require 65, failed times 1: ooooo xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx
2021-02-23 19:10:25 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 2, chip = 54, reg = 0
2021-02-23 19:10:25 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 2, chip = 54, reg = 1
2021-02-23 19:10:26 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 3, chip = 50, reg = 0
2021-02-23 19:10:26 temperature.c:843:get_temp_info: read temp sensor failed: chain = 2, sensor = 3, chip = 50, reg = 1
2021-02-23 19:10:26 temperature.c:875:get_temp_info: ERROR: chain 2 can get NONE temp info or temp value abnormal, power it off
2021-02-23 19:10:26 thread.c:1293:asic_status_monitor_thread: chain 2 can't get enough hashrate reg val for 1 times.
2021-02-23 19:10:27 thread.c:1265:asic_status_monitor_thread: ERROR: chain 2 get hashrate_reg_counter 0, require 65, failed times 1
2021-02-23 19:10:28 frequency.c:205:get_ideal_hash_rate_GH: ideal_hash_rate = 22656
2021-02-23 19:10:28 frequency.c:223:get_sale_hash_rate_GH: sale_hash_rate = 22000
2021-02-23 19:40:00 thread.c:259:calc_hashrate_avg: avg rate is 23083.64 in 30 mins
2021-02-23 19:40:00 temperature.c:516:temp_statistics_show: pcb temp 49~65 chip temp 72~80
2021-02-23 20:10:01 thread.c:259:calc_hashrate_avg: avg rate is 22760.07 in 30 mins
2021-02-23 20:10:01 temperature.c:516:temp_statistics_show: pcb temp 50~65 chip temp 71~79
Maybe i froze those temp sensors more than I should, or, it could just be a loose heatsink somewhere, but nonetheless, showing full asic count after the freezer visit is a good sign. |
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هل تقصد أننى عندما أستبدل التوكن AWC لن احصل على أيثيريوم و لكن سأحصل على WETH  هل هذه العملات أمنة ويمكن أستبدالها أيضا ؟؟ [/b][/right] لا اخي ستحصل على ايثيريوم لان الايثريوم موجودة على بلوك تشين الايثيريوم, يمكن تصور ان البتكوين مثل الذهب, او البصل! هل يمكنك وضع البصل داخل بلوك تشين الايثيريوم ؟ طبعا لا, لكن يمكن وضع عملة مربوطة بالبصل اسمها W-Onion تكون قيمتها مربوطة بالبصل ولكن عندما تريد ان تأخد البصلة لتأكلها لن يكون هدا ممكن, بل يجب عليك استبدالها بعملة موجودة على البلوك تشين الخاص بالايثيريوم مثل عملة ETH وارسالها لمنصة اخرى مثلا, واستبدالها ب USDC وشراء البصل مجددا من السوق. يعني الملخص اي عملة موجودة في الاصل على البلوكتشين الخاص بالايثيريوم اي عملة erc20 يمكن مقايضتها مباشرة, اي عملة غير موجودة مثل البتكوين يمكن مقايضة عملة مرتبطة بها فقط, اتمنى ان يكون الشرح واضح. تفضل اخي اسئل ماتريد لا تخجل من السؤال. |
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أفهم الأن أنه يمكننى أستخدام هذه المنصة ولكن أردت أن أسأل بخصوص التكلفة من تحويل التوكن الى ايثيريوم عن طريق هذه المنصة فى ظل أرتفاع مصاريف التحويل ... هل هى عالية ؟؟؟ وماذا اذا أردت أن أحول التوكن الى بيتكوين وليس أيثيريوم فهل أستطيع عن طريق هذه المنصة و أذا كانت الأجابة نعم فكيف سيرسلون البيتكوين الى حسابى و انا قد دخلت بحساب ERC20؟؟؟؟ رسوم البيع والشراء مرتبطة ارتباط مباشر بتكلفة تحويل الايثيريوم, وهي الان مرتفعة وغير منطقية للتحويلات الصغيرة, وهدا ماجعل من عملة باينانس تعانق السحاب لانها حلت مشكلة التكاليف العالية للعقوذ الذكية, واعتقد انه مع توجه بعض المشاريع الى باينانس (عملة مركزية 100% لا اتمنى لها النجاح) وايضا الشهر المقبل مع اطلاق عملة كاردانو للعقود الذكية سوف نلاحظ انخفاض حجم التداول على الايثيريوم ولربما انخفاض في تكاليف التحويل. بخصوص البتكوين فهي على بلوك تشين مختلف تماما, ولكن يمكن ان تستلم "بتكوين افتراضية" ان صح التعبير على عنوان ايثيريوم ولكنها لن تكون بتكوين حقيقية بل Wrapped Bitcoin يعني عملة WBTC وهي تحتفط بقيمة البتكوين وسعرها ولكنها موجودة على بلوك تشين الايثيريوم. |
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الخيار الاخر هوا الاحتفاظ دائما بعملة بديلة قليلة التكلفة خارج المنصة في محفظة موبايل, دائما احتفط ببعض LTC و Doge في محفظة CoinOmi على الموبايل, المبالغ تكون قليلة ومعدة فقط لمثل هده الاستخدامات الصغيرة ولا اكترث لصعود او نزول سعرها, في المقابل حالفني الحظ في الارتفاع الجنوني لعملة دوجي حيت ارتفع سعرها تقريبا 1500% وصدمت عندما شادهت رصيدي تحول الى رقم لاباس به (خارج سياق الموضوع الموضوع), ولكن اعتقد الفكرة وصلت. |
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We all have heard this old "freeze" your electronic stuff to fix them, some say it works, some say it does not, I have always thought it was a complete B.S, until one of the members here whom I believe was "Favebook" reported some sucssess.
As some of you already know, I have a lot of dead 17 series hash boards, so I decided to give it a try.
I got myself 10 plastic bags and put 10 hash boards in those bags and buried them in the fridge for about 40 hours or so, I don't recall the exact duration but it was 2 nights and a bit less than 2 days.
I took the plastic bags out of the freezer but I didn't open them because the water condensed on them, I left them to dry overnight and the next day, I tested the 10 boards which were a combination of S17+ and T17 ( the T17s are a pain in the ass to disassemble and reassemble compared to the + and E versions).
The initial test brought 4 boards to life, reporting full asic numbers, I went ahead and flash a custom firmware to see if I get better results, sadly nothing.
After 10 hours when I checked the miners again two out of the four have died again (tears), I think one died after 30 mins or so (judging the hashrate on the pool) the other one lasted for a little under 10 hours.
The other two boards I managed to revive are still hashing after 2 days, it was one T17 hash board and one S17+, all the boards I have tested have no physical damage, I applied a good amount of pressure on all the heatsinks and nothing fell, I also noticed the 2 hash boards that came back to life for a while before resting in piece again show more than 0 asic but not all Asics for an example one of the T17 boards shows 20 Asics.
The T17 board that is still mining on does seem to have an issue with the 4th temp sensor reading, it's showing 0 on both the PCB and Chip but hashing at a modest 12.6TH.
Again, I would like to give credit to Favebook, and encourage you all to try this simple and free trick, I also think my success rate isn't realistic and far from sustainable when the sample size is larger, so don't expect to get 2 out of 10 every time, but really, given how easy and free this is, even with 1 in 20 you are a winner.
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What kind of performance can I reasonably expect on S9 and S9i, assuming I set powerlimit to 1500. For some reason autotuning is giving me 16+th on one..and only 14th on the other, even though both have all chips active? I’ve heard of people getting as high as 18th+?
Some chips are just bad and can't be tuned above their average, of course, assuming you are doing everything right and your PSU is in great shape, so don't expect that all gears will perform the same, that won't happen. as far as the 18th claim goes, it's possible but most likely not without liquid cooling, I am pretty sure most gears will collapse when you start pushing past 16th, overclocking your gears to 16th is already a bit risky, attempting to go higher is a toast recipe. |
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You sure its not $0.074?
Thank you for asking the question, I wanted to ask the same question but then I remembered he mentioned he works for some electricity supplier and he probably wouldn't make such a mistake, it would be easier to say that he has free power. Thanks for your advice, I left a message. 😉
Nice, I see you got a reply already, please be careful, given that your rank is a newbie, many scammers will be attempting to scam you. if you don't manage to find a seller in Europe - check with grace from Miner Expert https://bitcointalk.org/index.php?action=profile;u=2706610, they are based in China but they might help you source something nearby. |
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True, the recent batches are of better quality; also the ones that ship from Malaysia are worse according to what most people reported, however, the overall quality of all batches is combined is terrible, I bought those gears throughout the time of their release, as early as the second batch of the S17 (most of them for my clients), and nobody is really happy with any of them except for the s17 pro version which seems to be an expectation, not all great but a lot better than the rest. On the other hand, we have some Whatsminers from the same bitmain 17 series era that my clients reported 0 failure rate on, some are over 2 years old, imagine for 2 years, sounds like S9 all over again. With that being said, if you have a low failure rate, you should be thankful really as this is the unusual of how they are, you guys have decent luck I envy you.  Even if you do have the tools and skills to repair them, many times there are just too many issues to make it worth the effort. Many of these miners have flaky connections everywhere.. so you fix one issue and it runs for a few days until another issue springs up. Not worth the repair when it becomes a full time job to keep a single miner going...
Couldn't agree more, especially when you see Avalon and Whatsminer's owners be like "What does repair mean" , I know everyone has a different view on the subject, given what I think is a large enough sample size I find it very risky to buy any of the 17 series especially when other options are around, so far people are reporting good results with their S19s and T19s, some minor issues with their PSUs but nothing all that serious, my plan is to migrate to Whatsminer, selling my Bitmain gears for premium during this bull cycle and rebuying cheap M20s and M30s when things cool off little sounds like a great plan for the following years. I wish I could keep all the S9s I have because nothing comes close to their stability, but these gears are getting too old, I just realized some of them are as old as 4 years. |
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They basically told me that these were the worse units that bitmain produced and has had a ton of issues.
I have been saying this for months or perhaps years on this forum, I kept mentioning how bad the 17 series mining gears are on every occasion I saw possible, I did that to the extreme that someone accused me of "fud", I can't blame them, it did sound like I own a Bitmain competitor company. Phill is probably the only one I know who didn't have a high failure rate, the vast majority of people I know had well over 30% failure rate, some are above 50% in less than a year, this is so unfortunate given that most of us bought those gears when BTC price was at or below 10k. It's a lesson learned, I hope more people become aware of that, if you don't have the tools and skills needed to fix these gears DO NOT buy them. |
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Is there a flash upgrade for the S9's to take them to +3 th/s?
This should be in the mining support board instead. Short answer: NO Long answer: This is probably a glitch in btcTool, the multi-option firmware has an option to underclock the miner by 3 terahash but a maximum of 2 terahash for the overclock, you should NOT attempt a firmware upgrade, the latest version has no tuning options and you probably can't revert to the 2019 firmware which has the drop-down options for tuning, I also believe +2th is already good enough to sustain your miners anyway, don't push them hard. |
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If I had to count the cost of importing from a country outside the European Union I think we would easily have to add 30%.
Then you should try to source them locally, make a WTB in the market place/hardware section https://bitcointalk.org/index.php?board=75.0. Make sure you either have a F2F meeting with the seller or ask for escrow, phill would escrow that I believe. If I wanted to start small, would it be a good idea to buy a revised or even a new used Bitmain S9?
With your low power rate, you can make a decent profit with an S9 and most importantly get the hang of how mining actually works, all of that while risking well below 1k instead of 14k. |
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Imagine someone would turn off 6EH just to mess with someone.  I wanted to take screenshots of 250, 500, 750, and 1000 blocks but I missed 250 and I got the 285. Latest Block: 671612 (8 minutes ago)
Current Pace: 101.6779% (285 / 280.30 expected, 4.7 ahead)
Previous Difficulty: 21434395961348.92
Current Difficulty: 21724134900047.27
Next Difficulty: between 21827669607849 and 22123513877023
Next Difficulty Change: between +0.4766% and +1.8384%
Previous Retarget: last Friday at 11:56 PM (+1.3517%)
Next Retarget (earliest): March 5, 2021 at 6:23 PM (in 11d 19h 44m 20s)
Next Retarget (latest): March 5, 2021 at 10:28 PM (in 11d 23h 49m 37s)
Projected Epoch Length: between 13d 18h 27m 18s and 13d 22h 32m 35s
I also got the 5 blocks status earlier on. Latest Block: 671332 (3 minutes ago)
Current Pace: 83.0581% (5 / 6.02 expected, 1.02 behind)
Previous Difficulty: 21434395961348.92
Current Difficulty: 21724134900047.27
Next Difficulty: between 19472305559050 and 21711695987187
Next Difficulty Change: between -10.3656% and -0.0573%
Previous Retarget: Yesterday at 11:56 PM (+1.3517%)
Next Retarget (earliest): March 6, 2021 at 12:16 AM (in 13d 23h 20m 10s)
Next Retarget (latest): March 8, 2021 at 8:28 PM (in 16d 19h 31m 57s)
Projected Epoch Length: between 14d 0h 20m 22s and 16d 20h 32m 9s
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For those who know, are the S19 Pro that can be found at reputable sellers on Alibaba the same as ordering on the Bitmain site?
Avoid Alibaba like the plague, you can find other trusted sellers on this forum, but do you really want to pay close to 14k for a miner? what about tax, how much do you have to pay to import a miner like that? Do you think this information sounds realistic?
They don't, this is based on static difficulty and price which we all know is impossible, it all depends on your luck, let's assume difficulty is going to be same if bitcoin price goes to 150k the S19 pro at your power cost will make you about 3k a month, so for 14k investment, you would need a little under 6 months to ROI, if however, bitcoin price drops to 27k, your miner will make you $500 a month, and that will be over two years to ROI. To put this in a simple and yet somehow accurate way, when you buy bitcoin mining gear you are essentially betting on the price to go up if you believe that will be case until you hit ROI, then go ahead, if not - don't. The point here is not to get your hopes so high, know that the difficulty is only going to go up and the price can't go up forever, if you understand the risk and the dark side of mining then mining is a great business, if you don't, you will end up losing money just the like the majority of people who invest in something they don't quite understand. |
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[...]
Keep in mind only the repair shops located in China are actually certified by them, the rest are not, and they state that clearly on their website, however, I'd imagine they do some basic due diligence before listing anyone, still, deal with cautious. If they don't reply you let me know, I have quite a solid relationship with Kevin, and I am trying to get him to treat bitcointalk members with a bit of a priority and offer them some discount, I believe sometime in the future I may get him to sign up to the forum or put one of his staff here for the forum members to interact with Zeusbtc directly on the forum. |
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