S19j Pro Low power mode

Mining & Hardware ASIC Mining
#1

I thought I would post my results from the new low power mode firmware for those interested. I tested the new firmware on my 100TH s19j Pro.

Initial hash rate: 101.3TH
Initial wattage: 3025w
W/Th: 29.9

New hash rate: 80.5TH
New wattage: 2266w
W/Th: 28.15

Initially, I would have to say that I only see about a 5% improvement in the overall efficiency. This is much less than Bitmain estimates, but there are a few factors that need to be considered. I am in the middle of the arctic blast and temps are really low. I need to let the miner stabilize and run for a full 24hrs.

I will update this thread when I have more data.

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#2

The 24hr hashrate was about 78TH. W/TH improved slightly to 27.9. After 24 hrs I switched back to normal mode. I really don’t see much improvement in efficiency as claimed by Bitmain. Feel free to try it for yourself and post your thoughts/results.

#3

I updated my s19j pro 104 to the new firmware. Everything works fine except there is only Normal and sleep mode available. No low power mode was installed.

#4

If using chrome switch to incognito mode or hold down shift when you refresh to clear the cookies.

#5

I’m using firefox. I tried refreshing many times but still no low power option. Thanks to your genius suggestion, I opened up the miner’s ip in a firefox private window and magically the low power mode option appeared. Thank you

#6

Now to test the 2 modes with a watt meter. The watt meter I used in the past craps out at 2000 watts. I can’t find one that will be able to withstand the 3000+ watts of the S19 in normal mode. Any ideas? I don’t want to buy a pdu with the meter built in because I would have to unplug everything else connected to the pdu to measure the watts of one miner.

#7

Measure each power cord going to the s19 power supply and add them together… each should be roughly half the wattage.

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#8

I was just looking for this answer as the S19 firmware just came out. When I did the S19J Pro it was there, but couldn’t get it to come up on the S19. Thanks.

#9

For my S19J Pro 104
Normal Mode: 105.2 TH
3160 Watts
30 W/TH
Low Power Mode: 77.25 TH
2124 Watts
27.5 W/TH
I only tested the LP mode for 3 hours. The average hashrate was slowly going up. I suspect eventually it would be closer to 78TH eventually.

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