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I ran my A3 overclocked at 930 Gh/s average for over one month with (low hardware errors under 2k/day per board)
I used 120V power on APW3++ and it worked like a charm!
Temperatures averaged around 62-65C for boards and outside room temps were between 60F-80F
I would say bitmain's PSU is stronger than it seems and does work well!
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Can someone please pm me the approximate number of how many siacoins their batch 1 A3 mined up to this point. I'm having a disagreement about it and am having trouble getting the calculators to provide the accurate number.
Thanks
It depends greatly on the day the person started up their miner. For example, the first-day people seemed to get theirs in the mail it mined 10,000, then 5000 the next two days. By Friday the miner mined about 2000/siacoin a day. Now for last month on average people have been getting 1600-1800 |
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That video was about the most unscientific "proof" ever. Like others have said, its a cheap tester with a lot of bad reviews on Amazon. Even if the reading is accurate though, Who is to say there isn't something else in the room causing it?
True, that's why I feel more tests need to be done with other Antminers and other sensors. However, someone else seems to have tested and got similar results. "it appears that this may be true. I went ahead and purchased my own HCHO meter (this is the model: http://a.co/6JzJ4ML) to verify after reading this post yesterday. Here are the results of ~30 minutes of testing next to one of my A3 units: https://i.imgur.com/YTxU8CI.jpg0.336 mg/m3 of HCHO detected." |
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Hmm, if someone else could test that would be great.
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Antminer s9 in stock for $2300
Good opportunity for anyone trying to buy at a low cost. If bitcoin goes back to $20,000 these things will sell for twice as much so it's a good time to buy if you have a low cost of electricity.
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Let's hope that the hash rate doesn't spike up another 200% before batch two gets shipped out otherwise I'll never make ROI...
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a3 will be 5$ by end of march  Ffs bitmain first you fuck me on my antminer d3 and now a3... $980? wtf they might as well release the next batch in April for $200 since by June I will be lucky to get 1$/day profit. |
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D3 has like a 19 GH/s hashrate? Why would anyone want to mine "siacoin" with only a 19 Gh/s if they manage to convert the d3 to be able to mine it? Seems like you'd make next to nothing |
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How rare is it that I have "foundblocks 1" on my antminer d3?? I've been running it since the start of December on my 19.3 gh/s d3? It makes me wonder if I should have just solo mined because I would have just earned 1.9 Dash coins instead of what I have now (less than .41 dash)  |
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I got the miner in the mail yesterday and it's really loud. I've been getting a really good hash rate (Over 830+) but am curious about a safe way to sell this unit. I'm looking to get $5100 USD and can include the APW3++ with the miner if you want.
Let me know about escrow services or any offers. Thanks
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just got mine hooked up
PCB temps 57, 57, 61
Chip temps 77, 79, 84
running at 525 AVG 729 gh/s
Wow, still really hot chip temps even at 525 Can it be set any lower? Those are good temperatures right in the middle of 40-80 limits. Plus, at a certain point, the only way to lower the temperature is having the surrounding air in the area cooler. If Blissz comes out with a a3 firmware you can lower the voltage which will drop the temperature easily 10 C |
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Looks like board died in mine too .......  That's not dead... that's the "error" indicator Unplug chain 2 and 3 PCIE connections + control board connector. Try to power up with just chain 1 to get it back online. Try to adjust the fan speed and frequency (increase it or decrease) Try to unplug the PCIE pins and re-plug along with replugging in the control board connection. Try to plug it into a different wall outlet in your area. It's likely that the board isn't dead and it's just a power issue. |
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To those who are afraid their temperature is too high. My third chain is running up to 96 degrees since 48 hours, no issue on the hashrate so far.
Not quite sure if 100% compareable but in an old thread there was a discussion about the S9 and the feedback from people with deep knowledge about chiptemperature was that everything under 100°C is fine.
No... It will run fine up until a board gets burnt and you miner is worthless. Bitmains recommendations are to keep it under 80C so by having it at 100C it must be very loud and likely not going to last you more than 1-2 months vs 1 year. |
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Just received the miner. It is freaking loud at my apartment. I am pretty sure someone is going to complain. I tried setting the fan speed to 70% but chip temperature is going beyond 90 C. What is the ideal fan speed and temperature guys? PCB is around 70 and chip around 100.. Is that too much?
PCB can never go to 80 or it will break... Try to keep it at 60-70 for best results. I recommend opening your window and pointing the outtake fan towards it. Also, You can only lower the fan if you are going to lower the frequency as well otherwise it will overheat. I recommend getting earplugs to sleep because it will be hard but would be best for right now. Either that or call a friend and ask them to run it in a spare room for the next 1 week while you buy fan shrouds, cooler, and insulated flexible duct to make a box to silent it a little. Window is open and people walking outside can hear it very well. It is like a vacuum cleaner running lol Right now, the fans are at 5800 RPM (auto mode), PCB is 65-70, chip temp is 90-92. Getting 830 GHS I tried setting fan speed to 70%. That significantly reduced the noise but chip temp were at 100 within few mins. I switched back the fan speed to auto. If I let it say at 70%, chip temp would hit 110 I guess. lol. Now, what is the max chip temp that is "ok" for device to at least last 6-7 month? If I want to lower the noise, I guess I have to underclock. Is "frequency" the settings to underclock? Can you tell me what range I should try changing and play with so I can lower the noise (and also hopefully keep the temperature ideal)? Sorry about too many questions. This is my first ASIC. Have been running GPU rigs always... I underclocked mine to 550 and they're still running at 75C with 30F air on the input side. I do not have a portable AC to point to the miner. Silly question - when you say input side, it is the side that has the ethernet port, right? Also, which side should face the window?  The side that blows air out like crazy right? And the ethernet port side should face inside the room? Correct? I lowered the freq to 550, PCB is at 65-70, chip temp at 85-90. Outside temperate is 30 F and the big window in the room is open but its still running so freaking hot. Will this fan do any help for my situation? I do have that lol - https://www.staples.com/product_2143666Have your window all the way open as much as possible. I'd aim the Hot air towards (backside without ethernet) towards the outside window so the room it self-stays cool. With the window, wide open, the cooler outside air should come in and reduce the temperature. Keep the fan setting on full and possibly consider shutting the miner off for 10 minutes and letting it chill either outside or with a cool fan blowing on it. If you have that fan go ahead and you can point it towards the intake (front) side to try and cool it down a little. Otherwise don't bother buying that. |
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Same happened to me with two different A3s. Did you solve the problem? Forum member Mr. Bliss help me out with firmware and I flashed it. But Ohhh one hashboard is still dead 1st shows 3 ASIC alive but in few minute dead. So My friend our BLADE came faulty. All we have to do is now asking BITMAIN for treatment. People with fine A3 congratulation for nice harvest . Who are not let's do our best . Peace out. That looks a lot like a Power supply problem, Try to unplug PCIE cables from boards 1/2 and chain 1/2 --> test board 3 (see if it works) Then, Try to unplug PCIE cables from boards 2/3 and chain 2/3 --> test board 1 (see if it works) Then, Try to unplug PCIE cables from boards 1/3 and chain 1/3 --> test board 2 (see if it works) If they all three work then chances are it's a power supply issue. Another thing, try to move the location to a different wall outlet and test it there that sometimes works for me. |
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Harper86 and Cryptonica helped me out getting a backup of the A3 firmware. thanks for that guys!  As others already found out as well: The A3 and D3 are very similar. I even found out that the software inside the controller chips on the hashing boards is exactly the same. Out of curiosity I tried to run the A3 firmware on the D3 and the A3 firmware actually detects the ASIC chips and tries to start mining on the D3 hardware. Looking at the logging it's fine, but it doesn't accept the work as Bitmain did actually changed something on the ASIC chips I guess. I do think they used the D3 as a base and stripped out 10 of x11 algorithms. For now the conclusion is that you can't convert the D3 to an A3. It probably does need reprogramming of the ASIC chips on the hashing boards itself. what about converting the A3 to d3? LMfao that would be pure profit.. Anyways plz come out with a3 firmware so I can run silent mode and customize the boards. Thanks! |
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