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Author Topic: Antminer S21: Bitmain’s Game Changer in the Bitcoin Mining World.  (Read 1277 times)
CochnocherCrypto
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February 13, 2024, 08:15:16 AM
Merited by vapourminer (1)
 #61



So a rated 3500 watt unit will sometimes do 3650 watts.


you are 100% correct! I ordered several S21's but only 1 from the jan batch. I can say, with the utmost certainty, it pulls on average 3.621 kW @ the wall. Your prediction is extremely accurate lol.

All the same - the miner averages about 204 TH/S which is solid. Hoping to be able to undervolt/underclock it for even greater efficiency (wouldn't sacrifice more than 10% HR - but if I can drop it .5-1.5 J/TH like I was able with my 19K Pros - i'll be happy.
mineshop.eu (OP)
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February 17, 2024, 12:42:42 PM
 #62



So a rated 3500 watt unit will sometimes do 3650 watts.


you are 100% correct! I ordered several S21's but only 1 from the jan batch. I can say, with the utmost certainty, it pulls on average 3.621 kW @ the wall. Your prediction is extremely accurate lol.

All the same - the miner averages about 204 TH/S which is solid. Hoping to be able to undervolt/underclock it for even greater efficiency (wouldn't sacrifice more than 10% HR - but if I can drop it .5-1.5 J/TH like I was able with my 19K Pros - i'll be happy.
You are very lucky newer got under 3900w Smiley
https://www.youtube.com/watch?v=NWVqNSx4YUI

philipma1957
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February 17, 2024, 03:04:46 PM
 #63



So a rated 3500 watt unit will sometimes do 3650 watts.


you are 100% correct! I ordered several S21's but only 1 from the jan batch. I can say, with the utmost certainty, it pulls on average 3.621 kW @ the wall. Your prediction is extremely accurate lol.

All the same - the miner averages about 204 TH/S which is solid. Hoping to be able to undervolt/underclock it for even greater efficiency (wouldn't sacrifice more than 10% HR - but if I can drop it .5-1.5 J/TH like I was able with my 19K Pros - i'll be happy.
You are very lucky newer got under 3900w Smiley
https://www.youtube.com/watch?v=NWVqNSx4YUI
. 300 x 24 = 7200 watts a day.

35 cents a day at five cent power. 
70 cents a day at 10 cent power.

A small commercial mine like mine has 70 pieces

we are near 5 cents.

so we lose 25 usd a day in power. or 9125 dollars a year.

It is a lot for us.

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danieleither
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February 18, 2024, 07:54:22 PM
 #64

No, just standard Bitmain firmware. I never use aftermarket firmware unless absolutely essential (e.g. an old knackered miner that won't run on standard firmware any more).
CochnocherCrypto
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February 21, 2024, 09:38:52 AM
 #65



So a rated 3500 watt unit will sometimes do 3650 watts.


you are 100% correct! I ordered several S21's but only 1 from the jan batch. I can say, with the utmost certainty, it pulls on average 3.621 kW @ the wall. Your prediction is extremely accurate lol.

All the same - the miner averages about 204 TH/S which is solid. Hoping to be able to undervolt/underclock it for even greater efficiency (wouldn't sacrifice more than 10% HR - but if I can drop it .5-1.5 J/TH like I was able with my 19K Pros - i'll be happy.
You are very lucky newer got under 3900w Smiley
https://www.youtube.com/watch?v=NWVqNSx4YUI
. 300 x 24 = 7200 watts a day.

35 cents a day at five cent power.  
70 cents a day at 10 cent power.

A small commercial mine like mine has 70 pieces

we are near 5 cents.

so we lose 25 usd a day in power. or 9125 dollars a year.

It is a lot for us.


Totally get that, Phil. I am also a very small farm owner (smaller than you!) I have about 30 Machines running full time at 1 location, and about 8 at another. It, undoubtedly, hurts... I just had to pay a $5,961 power bill this afternoon. But - Even tuning my 19K Pro's down to about 98 TH/S utilizing the ePIC UMC's Voltage Optimizer, the S21 in LPM is still more efficient.

Is it like - absolutely revolutionary? No. Is it an improvement from what I was using prior? Absolutely. Also - comparing it to the MicroBT or Canaan offerings, it still seems to be the clear go-to choise from my perspective.
I actually just received a 188T S21 from Altair yesterday that I got up and hashing today - am VERY pleased to announce that thus far, it is pulling 3.38 kW @ 192 TH/S (average). I only have 2 S21's - will be taking delivery of several more in the next month or so. Will certainly update this thread with some power figures next time I drive up to my farm.
Sergeant Major
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February 28, 2024, 03:35:07 AM
 #66

If I had a dollar for every time I read that something was a "GAME CHANGER" in the crypto world, I'd have a lot of dollars.

Apparently Vosk of the Voskcoin YT channel was having problems with his S21's after only a week, fan failures, I think it was.

They really need to start using larger low RPM fans on these to keep the noise and fan wear down, there's an aftermarket kit to adapt an 8 inch fan that is very quiet.
philipma1957
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February 28, 2024, 04:42:20 AM
 #67

If I had a dollar for every time I read that something was a "GAME CHANGER" in the crypto world, I'd have a lot of dollars.

Apparently Vosk of the Voskcoin YT channel was having problems with his S21's after only a week, fan failures, I think it was.

They really need to start using larger low RPM fans on these to keep the noise and fan wear down, there's an aftermarket kit to adapt an 8 inch fan that is very quiet.

s19 , s19xp and s21 are routinely tossing the new fans “martech”

unfortunately they no longer use the delta model fans.

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.. PLAY NOW ..
mineshop.eu (OP)
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April 18, 2024, 10:53:56 AM
 #68

Bitmain does this again , S21 pro 234ths dumping on top of preorders S21 200ths miner

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