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So Z9 in the kernel log files has alot of refrences to FPGA along with the chip boards having FPGA manufacturer. I wonder if there would be a way to modify it to change algos not entirely sure if its possible tho. Just wondering if anyone has looked into it more?
I was wondering the same thing, but don't have a clue, also, I was contemplating if, its possible to push each card 7 KSol/s (or 6.4) to get 21 KSol total... (2 Fans attached and %100). sometimes my boards' peak up to 6.4, I wonder if I can hold that around 6 ksol !! maybe ?? Where can I learn more?  Hey there guys, any luck on this? I have two fans on mine now and temps are very good. Did you find a way to overclock each board 6KSols/s or more? Thanks. Hey good job. How did you attach the fans? Any pics? 120mm or 140mm? Appreciate your insight. So I took a fan off an Antminer A3 then realized the holes don't line up and the screws are too big. So I just used aluminum tape and taped it on for now lol it's been holding up a week so far. |
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So Z9 in the kernel log files has alot of refrences to FPGA along with the chip boards having FPGA manufacturer. I wonder if there would be a way to modify it to change algos not entirely sure if its possible tho. Just wondering if anyone has looked into it more?
I was wondering the same thing, but don't have a clue, also, I was contemplating if, its possible to push each card 7 KSol/s (or 6.4) to get 21 KSol total... (2 Fans attached and %100). sometimes my boards' peak up to 6.4, I wonder if I can hold that around 6 ksol !! maybe ?? Where can I learn more? Hey there guys, any luck on this? I have two fans on mine now and temps are very good. Did you find a way to overclock each board 6KSols/s or more? Thanks. |
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First of all, the metal fan protection is removed, secondly - it somehow works. I mean temperature drops by ~ 2 degrees and noise drops ~6 dB.
I actually bought it on ebay for another Antminer.
I dont really understand thermodynamics and all but is true that your ambiance temp is below 20c ?, this kind of extension modification not working for tropical climate (ambient above 25c), it only make it hotter (by 2-3 or more in celcius, on s9) As for the noice reduction, isn it because of projected sound ? The longer the cone will make lower noise but if you measure it on the projection area (in front of the cone) its the same db produced Anyone tried to put additional exhaust fan on z9 mini ? It works for me. The temperature is not going up. Today, we have 34C outside (28-29C in the room where this Z9 is located (together with 20 GPUs) Can you post a picture? I'm in a similar environment. I did, please look a few posts earlier. Here it is again:  I think he is asking for a picture with it on the miner and hooked up. Would be cool to see. Here it is:  Wow, I didn't realize you had it on the intake. I'm actually surprised the temp went down 2 degree like that. I can see how the noise went down some. This is how I reduced noise the first time: https://imgur.com/a/sPLMc1JI had an A3 in there and it was pretty quiet actually. Ended up taking the intake piece off and just covering the hole with the cheapest home AC vent filter. Worked well. |
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First of all, the metal fan protection is removed, secondly - it somehow works. I mean temperature drops by ~ 2 degrees and noise drops ~6 dB.
I actually bought it on ebay for another Antminer.
I dont really understand thermodynamics and all but is true that your ambiance temp is below 20c ?, this kind of extension modification not working for tropical climate (ambient above 25c), it only make it hotter (by 2-3 or more in celcius, on s9) As for the noice reduction, isn it because of projected sound ? The longer the cone will make lower noise but if you measure it on the projection area (in front of the cone) its the same db produced Anyone tried to put additional exhaust fan on z9 mini ? It works for me. The temperature is not going up. Today, we have 34C outside (28-29C in the room where this Z9 is located (together with 20 GPUs) Can you post a picture? I'm in a similar environment. I did, please look a few posts earlier. Here it is again: I think he is asking for a picture with it on the miner and hooked up. Would be cool to see. |
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Buy an additional Z9 Mini for 676$ or not to buy!? Hard decision.
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First of all, the metal fan protection is removed, secondly - it somehow works. I mean temperature drops by ~ 2 degrees and noise drops ~6 dB.
I actually bought it on ebay for another Antminer.
Nice man, that's sweet. Check out this setup I did. I wouldn't say this is the best by any means though. All for testing and fun. https://imgur.com/a/E2D3cVDI got these from home depot and just cut one side off and took the flap off and they fit the holes for the miners perfectly: https://www.homedepot.com/p/Everbilt-4-in-Inline-Vent-Draft-Blocker-BD04HD/205046954WOW. Great idea! I have the same portable AC (in addition to Central Air in my mining room and I will implement some parts of your design! Thank you. Awesome man, glad to have showed something that can help. I do suggest a dehumidifier for the room. And no metal intake or exhaust. I tried those aluminum dryer exhausts and they would condensate. Haven't seen any with PVC yet. I'm not using anything for intake, they are just open with 3 additional fans in the fridge. Only PVC for the exhaust. You're welcome! |
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Dude, that is some long term rust right there. That doesn't just happen. You have to have plenty of condensation for that. My AC unit isn't hooked directly to the miners. It is simply just going into the fridge to try to sustain a consistent temp and prevent noise. The fridge isn't even running, I cut a freon line bc I was getting too impatient cutting the exhaust holes. Aluminum/metal increases risk of condensation which is why I have eliminated all metal and only use PVC. I tested with aluminum dryer exhaust and that would condensate really bad. I am running a dehumidifier that is collecting the condensation as much as possible. I have 3 different Antminers in there and they are all running at 70 temps for over 6 months now. I have 3 fans in the fridge as well to help circulate the air which warms up the cool air slightly before entering the miner(hopefully). All exhausted with PVC parts straight to the attic. I'm not seeing any condensation inside the fridge yet. Only on the outside of the fridge on the outside of the black PVC pipes going from the unit to the fridge. Because the temps are 100F+ here right now in the summer. No condensation on the inside of the pipes either. It's working for now, will have to see long term what happens. I think having a working fridge would increase condensation too but not sure of the outcome of this method vs just having a running fridge yet. |
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First of all, the metal fan protection is removed, secondly - it somehow works. I mean temperature drops by ~ 2 degrees and noise drops ~6 dB.
I actually bought it on ebay for another Antminer.
I dont really understand thermodynamics and all but is true that your ambiance temp is below 20c ?, this kind of extension modification not working for tropical climate (ambient above 25c), it only make it hotter (by 2-3 or more in celcius, on s9) As for the noice reduction, isn it because of projected sound ? The longer the cone will make lower noise but if you measure it on the projection area (in front of the cone) its the same db produced Anyone tried to put additional exhaust fan on z9 mini ? I put one on from an A3...screw holes don't line up. Had to jerry rig it. But works great. |
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First of all, the metal fan protection is removed, secondly - it somehow works. I mean temperature drops by ~ 2 degrees and noise drops ~6 dB.
I actually bought it on ebay for another Antminer.
Nice man, that's sweet. Check out this setup I did. I wouldn't say this is the best by any means though. All for testing and fun. https://imgur.com/a/E2D3cVDI got these from home depot and just cut one side off and took the flap off and they fit the holes for the miners perfectly: https://www.homedepot.com/p/Everbilt-4-in-Inline-Vent-Draft-Blocker-BD04HD/205046954 |
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This is not working? That works. Nice exhaust. How is splitting it into two better than having a single 4 inch exhaust? |
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Hey everyone, I'm just getting my Z9s up and running and have been playing around with different pools. So far I've tried Antpool (obviously), Nicehash, Flypool, and this morning I'm giving Mining Pool Hub a try. I don't mind Antpool but was way more familiar with Flypool from GPU mining and the setup was really easy. I don't know what the consensus is about Nicehash but I had the worst experience with stale shares over a 24hr period. I'll try and post a screen shot below. NH is great to maximize profit (in theory) with the auto switching so after learning about MPH from you all I gave it a shot this morning.
I'd like to make sure I'm setting up my Z9s properly though so here's what I've done so far: Signed up with MPH, read the FAQs and poked around the website, looked at the Equihash coins they support and saved wallet data for Bitcoin Gold, Zcash, ZenCash, Zclassic, and Bitcoin Cash (should I bother?). I didn't see support for Komodo, Hush, or this newer one Commercium.
Here's where I'm not sure, do you all suggest auto-exchanging? Pros/cons?
Now for the Z9 setup I have the URL to "us-east.equihash-hub.miningpoolhub.com:17023" because the 17023 is the coin-switching port for Equihash (I think I have that right).
Worker is (MPH username).()
Password is whatever I want.
Sorry for the lengthy post, let me know if I left any critical info out.
I have been mining on Flypool (I have 0 rejected shares). I do not think, NiceHash works. I have Antpool as backup. I am at this point only mining ZEC. Very modest OC of 675MHz (14.8 kSols) with board temperatures 64C, fan 70%. I put a "muffler" on my Z9 because my wife (mining at home in a dedicated room with GPU based systems) is sensitive to the noise :-) can you take a photo and post it here for that muffler setup, I am building something to lower the sound also, was look for good ideas, It will be nice to see it, Thanks, Here is what I am putting on the intake fan:  bad link Are you sure? I get an image when I click it. Yeah, not working. Make sure you set it to public instead of private in the sharing options. |
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I hope that it is not off topic but I am wondering if anyone else is thinking to get an Antminer Z9 mini from the second batch. I know that it is risky and chances to ROI might be very low but it costs now $850-250 (coupon) = $600 and the chances of Zcash forking this year are low. I like the miner: low power usage, low noise, small. In the worst case scenario, I will have $600 paper weight (or I will lose the prepayment). What do you think? I cannot imagine running S11 or anything else requiring > 1200 W with the noise level > 76 dB at home (I will actually need another upgrade to my fuse panel and I am risking the wrath of my wife  ). What do you think? I was contemplating getting FPGAs from Senseless or Mineority but it is a lot of money and unknowns. In my mind, GPU mining is dead (I am mining practically only Ether now) Here are my results from seven days mining BTG on MPH. Overclock is 750 and power draw is right around 400w at the wall. Temps have remained steady between 66 and 68. I am headed out of town and have yet to set up SSH with my Z9 so I am switching to Zen on mph in anticipation of the BTG fork on Sunday. Also, I just realized that the Bitmain coupons for a batch 1 Z9 expire in just a few weeks. That is some BS if I've ever seen it. I'm on the fence about whether or not to pick up another one. I imagine that as soon as the $250 coupons expire the big Z9 will be released. I hate to lose out on the coupons though.  I'm in the same boat. What did you decide to do? I agree with everything you said. |
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13 hours on powermining.pw and not a single payout.
this pool a scam?
Why would you stay on it that long then? I am getting payouts every two hours on flypool. 0.166 yesterday. Ran for a few hours then went to sleep, was going to test for 24 hours. Not now. Yep, back to flypool. powermining enjoy your free coins. I see, hate when that happens. Will increase the freq from 650 to 750 tonight. Everyone is saying it's working fine. No invalid shares at 650 the last two days. |
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13 hours on powermining.pw and not a single payout.
this pool a scam?
Why would you stay on it that long then? I am getting payouts every two hours on flypool. 0.166 yesterday. |
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Just ran 24 hours on Antpool PPLNS with one z9 mini oc to 750MHz. I have mined 0.14004336 ZEC which is about $22.64 USD
16.42 avg Ksol. 9401 accepted and 50699 discarded.
I just received my 2nd z9 mini today and it is running on Flypool oc to 750Mhz. I plan to compare them tomorrow.
I am interested in your results. I've been on flypool 22 hours now and have mined 1.36 ZEC. OCed to 650. Haven't had any invalid shares yet. You mean 0.136 ZEC? Yes, my bad. About at 24 hours now and at 0.145 now. |
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Just ran 24 hours on Antpool PPLNS with one z9 mini oc to 750MHz. I have mined 0.14004336 ZEC which is about $22.64 USD
16.42 avg Ksol. 9401 accepted and 50699 discarded.
I just received my 2nd z9 mini today and it is running on Flypool oc to 750Mhz. I plan to compare them tomorrow.
I am interested in your results. I've been on flypool 22 hours now and have mined 0.136 ZEC. OCed to 650. Haven't had any invalid shares yet. |
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Anyone have the settings for zcash on flypool? US server. Trying to see best port is 3333 or 13333 or other? Best difficulty setting?
stratum+tcp://us1-zcash.flypool.org:3333 t_wallet.worker_name any password That's working for me. Freq at 650, fan at 80%, 15Ksols/s. Temps are at 52, it's in a fridge. :p Why "t_wallet.worker_name"? Why not just "wallet.worker_name" The "t_" is confusing. Also flypool just isn't working for me. Any other pools currently working? I saw the list at the top. I'm just looking for an update. I should have said t_address, not t_wallet. My fault. It still makes sense if you know anything about mining zcash and even went to flypool.com home page were it says they cannot send payouts to a z address. I have a "fake address" you can mine to if you want. Let me know. |
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Anyone have the settings for zcash on flypool? US server. Trying to see best port is 3333 or 13333 or other? Best difficulty setting?
stratum+tcp://us1-zcash.flypool.org:3333 t_wallet.worker_name any password That's working for me. Freq at 650, fan at 80%, 15Ksols/s. Temps are at 52, it's in a fridge. :p |
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