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If the hashrate drops on Chain 0 and Chain 3 after running for a while. What's the problem?
Chain 0 is not functioning properly, as many chips are returning 0. This is could be due to either a shortage of cores in the chips or i
2023-07-08 08:02
403
0
The test report of S9 hashboard abnormal
As the picture shows, the chip 29 and 57 of all three hashboads has too high data. Reply:Capacitors may not normal, otherwise, the PCB m
2023-07-08 07:49
413
0
S9 hashboard RI is normal from chip 63 to chip 1,short CO at chip 1,but report 0
One of the chips may be short-circuiting and pulling down the RST voltage. Check if any chip is causing a short circuit and affecting th
2023-07-08 07:42
387
0
The S9 control board top surface only 1 light on.
The initial assessment indicates that the control board is burnt. Connect to the serial port and check for any logs. If that doesn't wor
2023-07-08 07:34
391
0
How to determine which voltage domain is normal when the L3+ hashboard has voltage domain imbalance?
Test the specific domain that is experiencing an imbalance.If the chip is not the issue, it is likely that the small capacitors are faul
2023-07-08 07:30
398
0
Z11 hashboard is short-circuited to ground at 3.3V. After removing the IC (U3), inductor (L1) and capacitors (20, 22, 23, 24), the short circuit issue persists.
Check the LDO circuit. Remove C21,C13,U3 to verify. If the issue still exist, the power IC broken, test the power manage IC one by one.
2023-07-08 07:14
444
0
S9 hashboard report 0, No RI signal, replace chip 62 and chip 63, power on but still no signals.
Replace chip 61, make sure the chip is OK.
2023-07-08 07:02
416
0
Z11 hashboard LDO without 3.3V, Pin 1 with 12V input voltage.
Add DC 3.3V power to the "L1" to check the current. If current is normal, repair the above circuit. If current is abnormal, repair th
2023-07-08 06:59
457
0
S9 hashboard the voltage and resistance are both normal, replace severial chips but stil report 50.
Short the CO signal of chip 50. If report 50, replace number 51 chip. If report 49, replace number 50 chip.
2023-07-08 06:40
425
0
The S9 hashboard report asic 62, replace the 62nd chip but still the same problem still exists.
Short the output CO signal of the 62nd chip.If report 62, replace the number 63 chip. If report 61 or other digital, continue to short t
2023-07-08 06:36
431
0
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