T3 57TH unit with problem

[smracer]

I have an Innosilicon T3 57TH unit that has just started having a problem.

PSU shuts power off to hashboards after 90 seconds whether the boards have finished pre-heating or not.

Once boards are heated to 60C if I cycle PSU the miner goes through pre-heating at 12.9V then goes to 13.6V and starts hashing.  PSU shuts power to boards after 90 sec. from when PSU first sends power to hashboards.

No errors on logs.  All chips show up on each board.

At 90 sec green light flashes on daugthercard on PSU and power goes to 0V.  The PSU stays on.

I have no other T3's to swap out parts with.  There are 4 jumper pins on the top of the daughtercard on the PSU.  Anything I can do with the pins or any other advice?  I am waiting to hear back to Innosilicon to see if they can help.

[philipma1957]

try lowest setting

eco I think

if that fails

try disconnecting 1 board

that would be hard to do   but if you unscrew  the end board and slip in a piece of non conductive material  only 2 boards  would  get power  if that works   then either the end board is defective or  the psu is aging.

hope this photo helps



last resort is fully remove the board.  see if two boards will work.

[mikeywith]

This miner is somehow similar to Bitmain latest generation miners, most of these issues are caused by the input voltage, according to Innosilicon T3 57th specs the input voltage needs to be whiting the 210-240 volt range.

I don't know how these PSUs work but I assume they have a sort of protection mode they go to if the voltage is not whiting the range for x amount of time. Another possibility is a faulty PSU. Since you have another gear to test with, the first thing I would do is try that PSU using a different socket and cable "just in case the damage was caused by one of those".

[dartx]

Do you have Inno monitor? If so, does it give you an error code?

[DaCryptoRaccoon]

Is that section showing some signs of burning looks like it's very dark looking could be a short somewhere there by the looks of it who ever put that stuff on the boards look terrible.