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Do your cost impact and rate of return take into consideration difficulty growth with your ROI time frame, then look at the noise and heat impact as well.
I do both gpu rig and asics, I do pools and solo on the gpu rigs, time it right and the overall investment on gpus outperforms the roi from asic investment on a apple to apple comparison based on the amount paid for a single asic purchase value in comparison to the same value being put into gpus.
Also the probability of seeling a gpu is much higher than asics as they can be sold easily for gamers and or miners getting in with budgets.
The asics is really a fire and forget situation, the gpus are like that once you have fine tuned your overclocks for efficiency and hashrates.
Spend some time in learning the pool mining and solo mining for gpus then factor that against an asic mining on a pool.
It took me more than 2 years to fully understand this.
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Main tank db prior to organization, 3 phase via single phase breakers rated at 20amps each for 6 asics
How are you getting 220v out of 3 phase? phase and neutral 220-240v phase to phase 380-400v? Also, I think you mean a total of 2 gears per phase, so 10 amps for each miner, that will work just fine with S9s, but not with S19, you will need the whole 20amps breaker for one gear, in fact, if you push it towards the 6kw figure, even the 20 amp won't be enough, hope you are keeping this info in mind. Great effort by the way, gave you more merit points for the efforts, I don't fully recall how the ranking system works, but I believe at this stage, you can post images directly on the forum by coping the .extension link and using the image icon above, here is an example of your breakers image  Thank you for the upgrade... the local 3 phase is 415v. Local electricity is UK std, the lowest breakers avail in the market start at 10amps. The s9's will be assigned 10amp breakers, the s19's are assigned 20amp breakers each. Yes I checked on the image posting prior to posting I believe it is on ranking will keep climbing the ladder.. ;-) |
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Running s19 and s19 pro all fans removed asics and psu using only spoofers on the asics and not psu, no issues so far other than some faulty spoofers, reconfirmed with friend he has s17's identical setup as me all fans off as well.
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S9's for testing https://postimg.cc/zLHhQxGQTesting tank got it from a friend that had no use for it as asics were overheating so doing some mods on it. https://postlmg.cc/QK3c1csyImmersion fluid https://postimg.cc/HjnrvSv9Arduino mini project to set immersion fluid safety trigger email above immersion fluid temps. https://postimg.cc/F1yBqZf1Original immersion tank pump being replaced with a home hot water circulator https://postimg.cc/56HFyPw2Original Immersion tank radiator vs new radiator https://postimg.cc/Whf6fF7hMain tank db prior to organization, 3 phase via single phase breakers rated at 20amps each for 6 asics https://postimg.cc/YL3K2QtHThe main tank is aluminum as after testing found that the overall cooling with an alu tanked helped with dissipating the heat faster on the tank shell being in a cooled down room by hvac. Will post pics of the main tank asics when I get some more pics. The pics posted above is for a smaller setup to do some testing with units close at hand then apply the benefits to the main tank and units. |
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Thx mikeywith and BitMaxz for the info and as per my objective with the possible firmware integration, I am only considering in increasing the overall efficiency of the asics, whilst I have alot of experience on gpu mining am still working my way with the asics setup.
Asics are all in a immersion tank environment, I will be testing my 2 old s9's in a smaller tank initially and if all checks out then will apply the rest on the main units.
You are welcome, please keep this topic updated, it would be a great addition to the forum given the little info related to immersion cooling, also some pictures and more details about your setup will be apppricated. I gave you some merit points to help you rank up so you can post with less resitctions. Thank you for the firmware upgrade.... will be posting shortly... |
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Thx mikeywith and BitMaxz for the info and as per my objective with the possible firmware integration, I am only considering in increasing the overall efficiency of the asics, whilst I have alot of experience on gpu mining am still working my way with the asics setup.
Asics are all in a immersion tank environment, I will be testing my 2 old s9's in a smaller tank initially and if all checks out then will apply the rest on the main units.
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Or just google 'fan simulator circuit' or 'fake fan signal' to get prints or information about it. One nice discussion is hereThank you for the info and links..  |
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The resistance that the pot is set to is pretty meaningless without knowing what the rest of the spoofer circuit is using. The pot is part of a timing circuit and without knowing what that circuit is...
What you need to measure is the duty cycle and frequency of the pulse train being sent. Best way is with either a multi-meter that has those functions, use an oscilloscope, or -- measure the average DC voltage you see between the yellow tach wire and the black wire (common). You can assume that 100% = 12v. That will at least let you calculate the duty cycle different fans speeds give but you still need to find out the baseline frequency, as I mentioned before, 1kHz is common.
Thank you for the heads up on this, much appreciated |
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Fans and fan emulators do not use resistance (ohms) for control. The are changing the duty cycle of a pulse train to report and set speed. I believe most use 1kHz with a 10% = slow speed to 100% = full speed duty cycle.
Yes the spoofer comes with 1kHZ pot that can be adjusted, I was trying to figure out if the ohms would be basis to check on the multimeter in reference to the fan ohms, still trying to figure out the correct reference point to adjust the spoofer pot to to get the right simulated fan speeds, as it seems that is the problem with fan failure readings when checkin asic logs. |
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What do you plan and why do you want to use the fan simulator for s19? Are you planning to run it with immersion cooling? If yes then you can just switch to other firmware like Braiins OS to bypass the fan you can check the link below for the download link and FAQs - https://braiins.com/os/plusYou are correct it is for immersion mining, I noticed that some of the spoofers I have are working and some are not, but what I noticed the most were the fan speeds rpm off from the manufacturer speeds. I was already looking at the asic.to firmware as a consideration, but thank you for the headsup on brains will look more into it. If you do have some personnel experience on the brains software how much power savings can one achieve with base clock speeds after auto tuning ? |
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Am trying to figure out the ohms setting for the fans that are on a Antminer S19, testing out the fan simulators I see that the fan speed readings are off in the 8k range as opposed to the norm defined by bitmain.
As the simulators I have have an adjustable pot that I can adjust the resistance levels would like to know if anyone has the data on this.
Thanks
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