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StellarStoic
npub1qqq…eecw
2024-12-03 07:24:47
in reply to nevent1q…mv08

StellarStoic on Nostr: Have you tried to change power supply? The last log you show is about low voltage. I ...

Have you tried to change power supply? The last log you show is about low voltage. I adket AI if knows something about that and he have knowledge...

The output logs you're seeing indicate an issue with your Bitcoin miner's power regulation, specifically with the TPS546, which is a DC-DC step-down converter often used in hardware like Bitcoin miners. Here's a breakdown of the critical issues:

1. Output Current (IOut): -0.23
A negative output current suggests a potential reverse current or measurement issue. This is not normal for a functional mining system.


2. Output Voltage (VOut): 0.05V
The output voltage is critically low. This indicates that the TPS546 is not supplying the correct voltage to the miner's components, which could prevent the miner from functioning correctly.


3. Input Voltage (Vint): 12.55V
The input voltage seems normal for a 12V system, so the problem is likely downstream from the input.


4. Frequency (freq): 650 kHz
The switching frequency appears to be standard for the TPS546, so the issue doesn't seem to stem from the frequency.


5. TPS546 Status: 4851
This is a status code that needs to be cross-referenced with the TPS546 datasheet or documentation. It could indicate a fault, such as an overcurrent condition, undervoltage, or thermal shutdown.


6. TPS546 VOUT Status: 00 & INPUT Status: 00
These codes suggest no specific flags for input or output issues being reported, which might mean the fault isn't detected by the chip or is occurring elsewhere.



Potential Causes

Overcurrent Protection: If the miner's power draw exceeds the TPS546's capability, it might shut down or fail to regulate voltage properly.

Short Circuit: A short in the miner's hardware could cause the TPS546 to limit its output to protect itself.

Faulty TPS546: The regulator itself may be damaged or malfunctioning.

Incorrect Configuration: The TPS546 might not be configured properly for the miner's load requirements.

Thermal Shutdown: Overheating could cause the TPS546 to stop regulating properly.


Suggested Actions

1. Inspect the Hardware:

Check for physical damage or burn marks on the TPS546 and surrounding components.

Ensure no components are shorted.

2. Check Connections:

Verify that the input and output connections to the TPS546 are secure and have no loose or frayed wires.

3. Measure Voltages:

Use a multimeter to measure the input and output voltages directly on the TPS546. Compare these readings with the expected values.

4. Examine Cooling:

Ensure the miner's cooling system is working and that the TPS546 is not overheating.

5. Review Status Code:

Refer to the TPS546 datasheet or documentation to decode the 4851 status and take corrective actions accordingly.

6. Reset and Reconfigure:

If possible, reset the TPS546 settings and ensure it is configured correctly for the miner's load requirements.


If these steps don't resolve the issue, the TPS546 may need replacement, or there may be a more significant fault within the miner's circuit that requires professional repair.

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npub1qqqqqqz7nhdqz3uuwmzlflxt46lyu7zkuqhcapddhgz66c4ddynswreecw