How to fix “power voltage can not meet the target” on Bitmain Antminer S19j ASICs

Cryptocurrency mining is a complex process that requires specialized hardware, such as Bitmain Antminer S19j ASICs. However, like any electronic device, Antminers can experience issues and breakdowns, such as voltage instability issues that prevent them from mining efficiently. In this maintenance guide, we will provide step-by-step troubleshooting instructions on how to fix the “power voltage can not meet the target” on Bitmain Antminer S19j ASICs. Following these steps, you can ensure your Antminer runs smoothly and efficiently and prevent any unexpected shutdowns or damage. Regular maintenance and monitoring of your mining equipment are crucial for ensuring long-term profitability, and we hope this guide will help you achieve that.

Troubleshooting Steps to fix “power voltage can not meet the target” on Bitmain Antminer S19j ASICs

  • The first thing you should do is check the kernel logs for error messages such as “ERROR POWER LOST: get power type version failed!”, “Power is not calibrated” or “power voltage can not meet the target.” These messages indicate that there is an issue with the power supply.
  • Check whether the power cable of your Antminer is loose or damaged. If the power cable is not connected correctly, it can lead to voltage instability. Re-plug or replace the power cable as necessary.
    • Unplug the old power supply from the wall socket and your Antminer S19J.
    • Connect the devices in your Antminer S19J to the new power supply using proper ESD (electrostatic discharge) procedures.
    • Verify that no cables or unused connectors are stuck in the fan or touching other moving parts.
    • Plug the new power supply into the wall socket and power up your Antminer S19J.
    • To fix a faulty power cable:
    • Unplug the old power cable from the wall socket and your Antminer S19J.
    • Cut off the damaged portion of the cable near the fraying cord and strip off some insulation from both ends of the remaining cable.
    • Twist together matching wires (black to black, white to white, green to green) and secure them with wire nuts or electrical tape.
    • Attach a new plug or connector to the spliced end of the cable according to its specifications.
    • Plug the fixed power cable into the wall socket and your Antminer S19J.
  • Use the Fluke 15B+ multimeter to check if the miner’s power supply voltage reaches the standard voltage necessary for the regular operation of the Antminer S19J. If not, replace the power supply with a new one or fix the hardware issue with the existing one.
    • Turn on your multimeter and switch the dial to the DC voltage position.
    • Connect the black test lead to a COM pin on your PSU’s connector, and connect the red test lead to the PSU pin you want to test.
    • Observe the voltage reading on your multimeter and compare it with the standard voltage for normal operation of your Antminer S19J.
  • Make sure your miner is adequately grounded and connected correctly to prevent unstable voltages in the miner. This includes checking the grounding of the power cable and ensuring that the Antminer is adequately connected to the grounding point.
  • Ensure all other components, such as cooling fans, function normally. High temperatures can cause voltage instability, so it is essential to ensure your Antminer’s cooling system works properly. Check if the cooling fans are functioning normally and if the heat sinks are free of dust and debris. Clean or replace the cooling system as necessary.
  • Run a self-test on your miner every few weeks to ensure everything runs smoothly. This can help identify any potential issues before they become more significant problems.
  • Consider using a surge protector to protect your hardware from unexpected spikes in voltage. This can help prevent damage to your Antminer and other mining equipment.
  • Monitor mining performance regularly and keep an eye out for any potential problems. This includes checking hash rates, temperature, and power consumption to ensure your Antminer runs optimally.
    • You can use the Miner Status page on the web interface to check the status of the hardware installed on your Antminer S19J.
    • The Miner Status page shows you information such as fan speed, temperature, frequency, voltage, hashrate and errors for each hash board.
    • If you see any abnormal values or error messages on the Miner Status page, you may have a hardware issue with your miner or its expansion boards.

Prevent Mining Downtime: Trust D-Central for ASIC Repairs

In conclusion, fixing “power voltage can not meet the target” on your Bitmain Antminer S19j ASICs can be a simple process that involves checking the power cable, socket voltage, power supply, cooling system, and grounding. Following these steps, you can avoid any unexpected shutdowns, prevent hardware damage, and keep your mining equipment running efficiently. However, if you have tried all the above steps and are still experiencing issues with your Antminer, it may be time to seek professional help. At D-Central, we offer quick and professional ASIC repair services to ensure your mining equipment is back up and running in no time. Don’t let voltage instability and other issues slow down your mining operation – bring your faulty device to D-Central and let us help you get back to mining profitably. Contact us today to schedule a repair.

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