I guess this kinda does explain why I am seeing some used S19J’s cost more than brand new S19k pros. I didn’t realize that the difference between an S19k pro 115T @2670W and 2x S91j pros 150T @3400W was so positive and significant. I did contemplate buying S19j but I was turned off by the high wattage and bought an S19k pro right before the halving. For now, I am not going to buy any more SHA256D ASICs. Going to wait till early fall to see the state of things.
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Did you reinstall Luxor firmware and did it go smoothly?
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Yeah mate it’s running normally again on lux
I’m pretty happy with the earnings on my s19k a few months later. I don’t sell my BTC. I hold it and I have 10 cent per kWh electric.
I point it to Nicehash and It peaks sometimes at around 0.00015 BTC per day and averages about 0.00009 BTC. Might buy 2 or 3 more SHA256D ASIC’s in the fall, not sure which ones yet.
ShredZ just keeping this thread relevant. There is good information for all. So any updates on the profitability of the S19s?
Yeah mate she’s running good still. I’m getting in some S19 pros 110T to do the same with so I’ll keep you updated with that
I might also get an epic board for my 95T, I’ll just need to confirm if it supports my board models
I think this is a good question……can the setting be made to reduce the wattage down to use regular plugs (110v). I will have solar soon but limited 220v plugs. Thoughts?
Hey, bro, the Epic board supports all S19 models and S21 model.
If you have a 110v PSU that supports the board voltage then yes it’s possible, Altair have done it with a S19 K pro for a space heater, and used Lux to adjust the board voltage. For example I think the AWP7 PSUs run at 11.9v off the top of my head and the ones used on goldshell boxes is 12v
Been lucking on this thread for a while. Figured I might as well see if I can get my efficiency better than having them turned off. S19J+ 117 has been on at the lowest Braiins setting, but the Jpro 96 and Pro 82 have been off. Having a go on the 96. Currently letting it tune on the lowest factory profile before messing with it. Maybe I can get it to be worth running again, even if it’s very low.
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Using Lux, which you can flash install/uninstall super easy using commander, put it on both the lowest voltage and frequency, then up the frequency by 5 each time to see how stable it is, until you get a chip that turns yellow. You’ll get a fair way, this will make your efficiency better. If you need any help mate PM I’ll help you out
You know what you’re doing more than me. I was going to start with the lowest factory profile and drop down. I’ve set it to the lowest possible which is 11.8 @ 100 -Let’s see what colours I get like that.
Any updates?
If it’s me you’re looking for an update from, I have put LuxOs on all 3. S19 82Th, S19 J Pro 96 Th, and S19 J Pro+ 117 Th. I’ve run them all through a bunch of tuning but an only running the 117.
I have a dead chip on one board, but I’m ignoring it and leaving it red. The Watt reading on the 117 is out by miles, and it has had all the fans removed and an AC Infinity with Njord Board installed. So there is fan overhead the miner doesn’t see. I use the Shelly Pro Din rail relay with energy monitoring to switch it on at night rate power and off when day rate kicks in. I’m on 10c night rate when converted to USD.
The best setting I could get from the 117 was 83Th running 11.9V @ 450 MHz using 1820W. So that’s 21.92 J/Th. At current network hashrate that would be break even at a BTC price of $72K according to Whattomine.
If I didn’t mind quite a few chips being light green, I can get it down to 21.74 J/Th by ramping it up to 470MHz.
I’m pretty confident the price will get there any minute now so I’ll just run it at what is a loss now. I could buy the coin, but I wouldn’t ever get round to it and it’s just not the same.
As for the other ones, The 96Th unit was best at 64Th running 11.9 @ 330MHz which was 25.48 J/TH. The old 82TH was 56 TH running 13.95 @ 410MHz which was 29.64 J/Th.
Perhaps I could get more at higher voltages, but I didn’t have the patience for it. I started at the lowest voltage and MHz, then cranked the MHZ till the chips went bad. Then went to the next voltage at the same lowest MHZ to see how the efficiency was. Tested again in the middle MHz of the lower voltage test. Tested again at the next V step. Nothing came close the efficiency of 11.9V on mine.
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Yeah nice, you won’t get any more efficient then what you can get on the lowest voltage. I’m waiting for my 110T boards to come and see how they run