Mixed batch hashing board compatibility?

mikeywith

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Quote from: RollTide2018 on June 10, 2020, 09:43:59 AM

All seems to be working fine with this setup. It does seem that the new board runs cooler than the two older ones, so I have had to underclock the old ones to keep all around 90degreesC ( poor temps due to this test unit is in a vented sound reduction box and also inside a small outside room :/)

The middle board usually runs a lot hotter than the two on the sides because the fan's motor kind of blocks the airflow so you might want to place the new board in the middle to give a better cooling for the other two boards, also I think the 90 degrees temp is not too bad given that they sit in a noise reduction box.

Good luck.

RollTide2018

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Thank you for the replies. I went ahead and flashed braiins OS onto the old control board so I could change each hashboard settings individually in case the old firmware that was loaded (from 2017) couldn't handle mixed boards. The old boards said version 3.x and the newer one 4.x. All seems to be working fine with this setup. It does seem that the new board runs cooler than the two older ones, so I have had to underclock the old ones to keep all around 90degreesC ( poor temps due to this test unit is in a vented sound reduction box and also inside a small outside room :/)

mikeywith

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Quote from: RollTide2018 on June 05, 2020, 11:27:51 PM

I have a s9 that has a failing hashing board. This s9 is an early 11.5th model, but I have a hashing board from a 13.5th unit to use as a replacement. I plan on learning how to flash a new os like brains to the controller. My question is will the os be able to handle the mixed batch boards?

There is really no way to tell unless you try, based on my experience most old S9 boards mix together well, this is specifically for S9/S9j/S9i, the newer models like the S9k is a whole different story, you can't mix different boards even from the same exact batch, there is SN on each hash board, the once I have are either labeled with an SN that starts with 1,2,3, so 1 will only work with 1 and so on, mind you that those were ordered and delivered on the same exact day, but for whatever stupid reason, Bitmain firmware won't allow me to run them on the same control board, so I ended up with a few miners that have a single hash board on them, which I can't mix.

Keep in mind that it's very unlikely that mixing boards will cause any damage, so you will lose nothing, you flash whatever firmware you want, and test it if it works - it works, if not - remove the incompatible hash board.

philipma1957

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Quote from: RollTide2018 on June 05, 2020, 11:27:51 PM

I have a s9 that has a failing hashing board. This s9 is an early 11.5th model, but I have a hashing board from a 13.5th unit to use as a replacement. I plan on learning how to flash a new os like brains to the controller. My question is will the os be able to handle the mixed batch boards?

Very likely it will work.

I have mixed and matched s9 gear. using brains.

But the oldest s9 units have the bigger two piece controller I have not used those two piece controllers with brains.

so i am not completely sure.

RollTide2018

jr. member

Activity: 41

Merit: 4

I have a s9 that has a failing hashing board. This s9 is an early 11.5th model, but I have a hashing board from a 13.5th unit to use as a replacement. I plan on learning how to flash a new os like brains to the controller. My question is will the os be able to handle the mixed batch boards?

Topic: Mixed batch hashing board compatibility? (Read 420 times)