issues with hardware

so we built an OS that can handle 8 s9j hash boards, but after some time, the last two (since 6 s9j boards are usually fine) start showing a ton of hardware errors and the hash rate drops to 0. any ideas on what’s causing this? could it be that the mining pool isn’t letting us run with these specs? or is there something else preventing us from using all the power of the hash boards consistently?

What exactly are those many errors? Would you mind to share with us? Copy all logs and post it here don't forget to put them all inside "insert code tag" it's a # button while editing your post. I don't think its due to mining pool since the two of them still running fine? Possible the issue of your 6 miner's is due to overheating.

#1 question: What type of controller is the software running on, BeagleBone? Pi-3 or P-4? Xylinx SoC? You may just be running out of coms bandwidth  or perhaps even have a memory leak.

the controller is Xylinx 7010 (s9j control board)

I cannot understand what you  are saying but I will say this simply that you should explain that what has happened to you so might help you further. And another solution is that you should talk to admins or support and they can guide you better in this situation too.

unfortunately, this is a new project that has been employed only once by an Iranian company and I cannot ask them since they will not be trying to solve my issue. this OS has 8 hashboards

How are your temps ? Isn't the hashrate stopping because of overheating ? We can imagine that the temperature could be a serious issue with so many hashboards. Could you share some logs ? Without any logs or substance we won't be able to help you

But you have access to these devices, right? If not, how did you run the mining software? Remotely? I don't think you need permission or help from them to dump the log files unless it was gated in one way or another. Or do you mean the log files are customed for their needs so nobody other than them can understand the files?

https://i.postimg.cc/tgLYyNnn/p.jpg

Any ideas?