antminer s9 braiins power limit question

[lordviper2300]

hello all. i live in a mobile home and i have recently purchased 2 antminer s9 13.5th/s machines. im trying to get 1 machine up and running first and go from there. but im having issues with my breaker tripping because i have to much on it.

i do have the braiins software but i have never used it yet. i read that i could lower the power limit and that might fix my problem.

i am speculating that with lower the power limit it will also lower the th/s which that is fine as well. im not worried about that. i just want to get my machines up and running.

so would that be all i would need to do to change the overall th/s is set my power limit to say 800watts?
could i even lower it to say 4 or 500watts?

[BitMaxz]

If you are going to use BraiinsOS firmware the minimum power limit is 100 you can't able to set it below 100watts.

You can find change it under menu miner>configuration where you can find the auto-tuning and it must be enabled and set the power limit that you like.

Look at the sample image below


Source: https://cryptomining-blog.com/tag/braiins-os-asicboost/

[lordviper2300]

if i did say lower it to like 400watts power. does anyone know what kind of speed in th/s i could get with it?

[BitMaxz]

if i did say lower it to like 400watts power. does anyone know what kind of speed in th/s i could get with it?

I'm not sure but I guess it's around 4 or 6th/s. I suggest you try to boot the BraiinsOS only without flashing the whole control board.

Why not if you want to run it with such a low power limit remove the other hashboard and only run one hashboard?
Or run two hashboard and set it on that power limit.

[Artemis3]

Whatever value you use, each hashboard will get 1/3 of that. So if you use power limit 300W but there is only 1 hashboard, it will use about 100W.

I have one hashboard running with power limit set to 900W, and its using less than 300W for 4TH/s.