If these miners weren’t the best bang for your buck, uncorking them will definitely push them there! I have been able to push my S19 90th (126 chip) to 105th. Below are my energy measurements:
Factory 92.5th 3074w 33.23w/th
J Pro 92.4th 2698w 29.2w/th
J Pro 97th 2835w 29.23w/th
Pro 99.5th 2965.5w 29.8w/th
J Pro 105th 3112w 29.93w/th
So what is uncorking and how is it different that overclocking? Well you use factory firmware and change the eeprom settings to run at a more efficient and faster hashrate. This is similar to using aftermarket firmware except you don’t pay DEV fee’s!
Unfortunately there are no aftermarket firmwares at this time for the amlogic 126chip S19 90th miners. Once third party firmware is available, we may be able to squeeze out even more gains via tuning.
I know the first thing you want to know is how to uncork them, unfortunately for most, you can’t. It requires special equipment to reprogram the eeprom of the hashboards. If you are an asic repair tech, you probably know how to do this. This is not a DIY friendly solution unfortunately.
As a side note, I have had this wrote for a few days but waiting to post… however it seems the buzz is already out there and everyone is asking for the S19 90th 126 chip version and the price on these has jumped $170+ from my supplier… just like everything Bitmain sells, they make sure they are the ones making all the money!!!
Absolutely! Not sure where you are located but if you’re not too far from me I could drive that way and flash your S19 90th if it is the 126 chip version. I’m in western NC.
Looks very interesting. Not sure that a control board swap is any easier that an eeprom reprogram for me… which only takes me a couple minutes to do. However, for the average miner that doesn’t have the specialized programmer, this might be a great option.
Well its still early but so far I have mixed feelings about the board. I love the GUI of it and it seems to be very easy to use… but so far it is not running as efficient as the factory firmware and uncorked boards. The screen is showing 3349.8 watts and I measured 3341.9 watts @ 104.84th. Uncorked I was measuring 3112 watts.
I know it’s not better than uncorked, I don’t have a 90th model but is there any other market firmware that is competitive with this? With my 95th and 104th models it’s normally an extra 500-600 watts to gain 15th on the likes of Luxos
I doubt it. I have tried Vnish and Brainns and not impressed with either as far as efficiency is concerned… honestly bitmain factory firmware is my go to firmware unless there is a problem I cannot fix, then I use vnish to try and find the issue (bad chip). Looks like this board will be good for that and has a home in my repair test rig. It should save me time from having to flash the control board to switch S19 sub variants.
Hey Jackson sorry for bombarding with questions but I find it interesting and want to understand better. If I understand correctly you use a eeprom code editor, and you change the frequency and voltage of each board, and it runs more efficiently because it’s on Bitmain stock firmware? Or do you change more than the frequency and voltage to achieve better results? Thanks legend
figured worst case it would be a good control board for my repair test rig.
