Bitcoin Forum

I have some problems with some of my T3H miners. I got the error code 24 witch mean the communication of some chips doesn't work well.
So I get the defective board out and when I run the diag, I see that there's a problem around the chip UT3 but even if I change it, the problem still there.

Is anyone here do repair their board and can help me with that.

I have T3+ units, they have been rock solid.

1) Did you have problems with your unit from new?
2) What did innosilicon have to say?
3) So u got a spare board and put it in?

I would want to firmware to default just so that any settings and triggered faults (non configurable) are removed.

thx for replying!

1) Yes. They are new miners.

2) I cant see the defective board on Innoscilicon cause the board shut down. Inno monitor say error 24 (communication error from chip) and the board #2 is not working.

3) I have new chips.

Did you replace the chip under that defective hashboard? or you replace the hashboard with the new one but you still getting error 24?

If you replace the hashboard still getting error 24 can you try to replace the ribbon cable(known working ribbon cable) or you can use the ribbon cable connected from other hashboard and put it to new hashboard and test again(Make sure the old ribbon connected to that defective board before is removed)?

Then do a test. If you still have this error well the only solution for that is to request a repair from inno.

Yeah, I replace the chips but the problem always there. I change basically everything around the chip and nothing happened. Same error 24.

I've never disassembled the T3, are you telling me that the hash chips are user replacable?  Or is this another type of chip, that u were able to diagnose ?  Are you able to bring in another hash board from another unit that is known good to see if it is indeed the hashboard?

I change the chip from the hash-board and yes they are replaceable. They're 114 chips.. so I run a diag to see where the problem is.
And with this one in particular, it say the the SPI is failing somewhere between those chips.
I tough it was the UT3 but it isn't.

That's a deep dive, how can you sure that the chips you replace are defective/damaged chips? Where did you get the chips that you replace on hashboard chips? You might get the chips from another scrap hashboard or maybe you bought them online?

Replacing all chips is a deep dive unless if you are an expert on hardware issues. What I can suggest is better replace the hashboard or if you want to go in deep hardware solution you will need to get a hashboard that you know working and use multitester to check every line from the chips and use the working hashboard as your reference. This will be a good start to find the difference between damaged hashboard and working hashboard.

In case you can't find the damaged chip better to replace it with a working hashboard because replacing all chips will give you a headache.


The software won't tell you which one is damaged since your problem is related to hardware as I said above you will need a multitester to find those damaged parts.

I do have all the tool that I need. I run a diag with a control board and a power supply. It tell me where the signal stop. After this, I have an oscilloscope and look at my signals and I can see SDO/SDI/CLK/CS and from that I know where the problem is. Maybe its too deep to ask something like that here.

I don't replace all the chips. Just the chips that I need to.