help please my miner s7 not working

[affiliateworth]

hi every body today i got this problem all was normal but in a time my miner sound go very hight and
i stop it and i have wait 3 hours then i have re run it , and then i find that the sound is hight that the normal
and the fan 3 speed drop to 840 and cant go hight than that i try to restart it and to root the miner but same problem
and i got the alarm sound also ,
temp also go from 52 to 75 in 30 secounds

[1714022552]

1714022552

[affiliateworth]

please any help from you guys ?

[HagssFIN]

You have a broken fan connected to the Fan3 connector and possibly a dead hash board in the chain #3.

[affiliateworth]

You have a broken fan connected to the Fan3 connector and possibly a dead hash board in the chain #3.

hi brother thank you so much for replay
about the chain 3 i work with it for almost +1months like that the problem is the temp detector not work but most of time same temp are for all my chains


bro what should i do about this fan3 please

[at6871]

You got to replace the fan. If I'm not wrong it's the fan at the back of the miner.

[affiliateworth]

for other guys if have some prolems this is bitman replay
Please check your fan. On the miner status screen there should be two fans detected.
The speed of each fan should be 3800-4200r/min and the board temperatures should be 30-80℃
If your miner status screen does not display two fans running at these speeds, please test the machine with a new fan to confirm that the fan is defective.

If you do not have another machine with a good fan you can test by switching the front and back fans. Ifthe issue follows the fan then the fan is defective. If the same fan shows the slow speed then either the IO board or the BB board is defective,