Chapter VIII Common Problems and Solutions of Operation and … · 2020. 4. 10. · 3. Observe the hashboard temperature. If there is no hashrate due to excessive temperature, first

Ant Training Academy Mining Farm O&M Teaching Materials

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Chapter VIII Common Problems and Solutions of Operation and Maintenance

There are various reasons for the failures of mining farm or the miner. First, try to solve the problem by checking the network, upgrading the firmware, resetting, checking the wiring, replacing the power supply, recovering control board, cleaning up the dust, reducing ambient temperature, etc. If it's not solved, check electricity, environment and other aspects. If the problem can't be solved on site, it can be returned to customer service department for handling. The general problems and solutions can refer to the following:

I. Network Disconnected

1. The Entire Shelf Is Disconnected from the Network

Problem: The server flashes red or the green light is always on, and it is in a dead state

(1) Check whether the first fool switch has a power failure. If it's restored after poweringoff, the network can be restored just by powering on again;

(2) Replace the network port of the main network cable on the fool switch, and checkwhether there is a problem with the network port;

(3) If the network has not been restored after the network port is replaced, plug the mainnetwork cable to the next switch; if the lower layer network is restored, it indicates thatthe upper layer switch is damaged, so replace it and then the machine will be restored.If the network is not restored, the main network cable can be determined to be faulty,and the crystal connector shall be replaced. If it does not work, replace the entirenetwork cable;

2. Hierarchical Network Disconnection

Problem: The server flashes red or the green light is always on, and it is in a dead state

(1) Check whether the corresponding switch is powered off;

(2) Replace the connection network cable between the switch and the previous switch;

(3) If the above method doesn't work, replace the switch;

3. The Entire Plant is Disconnected from the Network


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(1) Check whether the aggregation switch is powered off;

(2) Check whether the photoelectric converter is powered off;

(3) It is recommended to establish circuit and network dual-route protection measures for photoelectric converters and convergence switches;

II. Power Failure

1. After the plant is powered off, all the air switches must be closed. After the power transmission is completed, open the air switches to protect the normal operation of the server;

2. Actively contact relevant personnel to resume power transmission in a timely manner;

III. Server Reboot

Background reboot

1. Enter the server background and select the Reboot tab;

2.Click the “Reboot” button and wait for the server to start;


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Power off and reboot:

1. Disconnect the power cord from the power supply to power off the server;

2. After the server fan stops running, connect the power cord to the power supply to resume power transmission;

IV. Server Reset

Background reset:

1. Enter the server background and select the Upgrade tab;


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2. Confirm to reset this server configuration (the mining pool and IP will be restored to default after reset);

Manual reset:

1. Power off and reboot the server;

2. Press the Reset button with a suitable object, and after the control panel Fault and Normal lights flashes for 3 times or so, the server will restore the factory settings;


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V. Flash Firmware

Steps:

1. Enter the server background interface and select the Upgrade tab;

2. Select the firmware that matches the server model;

3. Confirm to flash firmware;

4. This option is whether to retain the previous configuration or not (if selected, the previous configuration will be retained after flashing the firmware, if unselected, the previous configuration will be cleared after the firmware is flashed);


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VI. Missing Chips (or the quantity of chips is more than normal,

the ASIC# displays xxx and the Temp displays 0)

Maintenance method: The processing method is suitable for most models.

1. Enter the background page, you can directly view the quantity of chips on the hash board, and determine the number of board of which the chip misses;

2. Observe the running time of the server. If it has been running for a long time, it is likely to be a false report. It will be restored after rebooting the server;

3. If the running time is short, the user can flash the server and observe the status after starting; if the chip still misses, remove it from the shelf (label: a certain board has chip missed);

VII. Missing Hashboard (3 #)


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Maintenance method: The handling method is suitable for most models.

1. Enter the background page, you can directly view the quantity of hashboards, and determine the number of board of which the hashboard misses;

2. Observe the running time of the server. If it has been running for a long time, it is likely to be a false report. It will be restored after restarting the server;

3. If the running time is short, you can perform the following operations on the server:

(1) Check whether the server cable is tightly inserted or damaged. If it's loosed or damaged, the hashboard cannot be detected;

(2) Check whether there is a large amount of dust on the cable interface. If it is, remove the dust at first and then power on to observe the status;


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(3) If it still cannot be detected, replace the cable and check whether it is a cable problem;

(4) Flash firmware on the server and then operate it;

(5) Check whether the power supply is plugged in tightly or damaged. Observe the status after starting. If the hashboard still misses, remove it from the shelf (label: a certain board misses);

VIII. 2 # No Hashrate (temperature display is normal; the

number of chips is normal)


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1. Enter the background page, you can directly view the real-time hashrate of the hashboard, and judge the hashboard of which the hashrate is unqualified;

2. Observe the running time of the server. If it has been running for a long time, it will recover after restarting the server;

3. If the running time is short: (1) flash firmware for the server and observe the status after starting; (2) replace the cable; (3) replace the power supply, check whether the power is plugged in or damaged, and observe the status after starting; If there is still no hashrate, then take it out the shelf (label: a certain board has no hashrate);

IX. Three Boards Have No Hashrate


1. Enter the background interface, the user can directly view that the real-time hashrate of the hashboard is 0;



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3. Observe the hashboard temperature. If there is no hashrate due to excessive temperature, first adjust the temperature of the factory building and then restart the server. The hashrate will return to normal. The temperature should be adjusted in time to avoid server damage;

4. If the running time is short, the user can flash the server and replace the power supply to restore the factory settings. Observe the status after starting. If there is still no hashrate, take it out the shelf (label: a certain board has no hashrate);

X. Low Hashrate (2 #)


1. Enter the background screen, the user can directly observe that the real-time hashrate of the hashboard is much lower than the theoretical hashrate;


3. If the running time is short:

(1) The user can flash firmware for the server first to observe the status;

(2) The power output may be insufficient. Replace the power supply and observe the status.

(3) Restore factory setting, observe the state after starting. If the hashrate is still low, take it out the shelf (label: low hashrate of a certain board);

XI. Fan Speed Is Too low or Artificially High


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1. Enter the background screen, the user can directly view the fan speed or enter the LOG page and use Ctrl + F to find fan, and then check the number of fans and the speed;

2. If the fan has low speed, observe whether there is any foreign object blocking. If not, replace the fan;

XII All Lights of the Server Are Off


1. Check whether the power supply of the control board and the hash board is plugged tightly, and eliminate the problem of unplugged or loosed power sockets;


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2. Check whether the power cord is damaged to eliminate the problem of the power cord;

3. Replace the power supply to eliminate the power supply problem. If the power supply is normal, it is the server control board problem;

4. Replacing the control board will solve this problem;

XIII. Unable to Start


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1. Enter the LOG page to check whether the fan is running normally. If the fan abnormal, log only displays the speed of one fan, check if the server fan cable is damaged or the fan is damaged. If yes, replace the fan to solve the problem

2. If the fan is normal, the power output may be insufficient. Replace the power supply;

3. If there is no problem with the power supply, the problem may be caused by the control board. Flash the firmware and observe for a period of time, if it still fails to start, take it out the shelf and send for repairing;

4. If a certain model has no mining pool server configured, it can't start as well;

XIV. In Case of No Hashrate or Low Hashrate Due to the

Server Runs in a Low-Temperature Environment


1. Adjust the temperature of the factory building, restart the server after the temperature comes up, then the hashrate can be restored;


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2. Place the server in a place with high temperature, and recover it when the temperature comes up;

XV. The Server Is Unable to Flash the Mining Pool

Maintenance method:

1. The server firmware version is too low to flash the mining pool: flash the latest controlled firmware;

2. Restore the factory settings of the server, modify the IP and then flash the mining pool;

Troubleshooting Table V1.0 for Common Miner Faults

No. Miner Faults Troubleshooting Method 1

The miner is not powered

1.Check whether the power supply and power cables are plugged in and powered 2.Measure with a multimeter for whether the power supply 6pin line has 12V output 3.Check the control board and the hashboard for burnout marks

1. Re-plug the line 2. Replace the faulty power supply 3. Replace the control board

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The miner cannot be found on the backstage

1.Restore to factory settings or power off, press IP report button to reset 2.Check whether the miner and computer are in the same network 3.The router does not turn on DHCP or the renewal time is too long 4.Add a wrong IP segment

1. Re-find IP 2. Connect the miner and computer to the same network 3. The router turns on DHCP and sets renewal to 2 hours


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4. Re-add the correct IP segment

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Cannot visit or

enter the backstage of the

miner

1.The original IP is inconsistent with the current network after the miner is relocated 2. Browser compatibility issues 3. Check if the password is correct 4. Restore to factory settings or brush the control board with card

1. Change the current network to be consistent with the previous site 2. Use Google Chrome or Firefox

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No data on the backstage or 0

hashrate

1. Check if the fan cable is plugged in or the fan is faulty 2. Check if the miner can ping the mining pool 3. Check if the fixed IP setting of the miner is wrong 4. Check if the mining pool server address and the server of the miner is set correctly

1. Replace the fan or re-plug the fan cable 2. Network troubleshooting or replace the mining pool 3. Reset and set the fixed IP again 4. Reset the mining pool server address and the server

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The miner has insufficient

board hashrate

1. Check if the miner 6Pin power line and cable are plugged in firmly 2. Check if the PSU is faulty

1. Re-plug the line 2. Replace the faulty power supply

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Miner’s red light flashes

1. Check if the network is normal 2. Check if the machine is in high temperature protection

1. Check if the fan is faulty 2. Lower the ambient temperature and clean the dust

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Run for a period of time with

fewer chips or partial chips. Enter X to

restart normally

1. Check the power supply 2. Check grounding 3. Check the network

1. Replace the power supply 2. Conduct grounding 3. Replace the network device or change the main network

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Run for a period of time with

whole hashboard chip

X to restart normally

1. Check the power supply 2. check grounding 3. Check the ambient temperature and the dust of the miner

1. Replace the power supply 2. Conduct grounding 3. Lower the ambient temperature, the miner cleans the dust

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Batch software scans a small

number of

1. Not add all network segments 2. Check the internal network fault,

1. Re-add network segment 2. LAN troubleshooting


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miners whether the switch is powered off

and check the switch

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The miner runs for a period of

time with 0 hashrate, restart

to restore hashrate

1. Check if the power supply is abnormal 2. Check if the temperature is abnormal

1. Replace the power supply 2. Lower the ambient temperature, the miner cleans the dust

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SD card recovery system

failed

1. Whether the card recovery image is wrong 2. Memory card compatibility issues 3. Whether the SD card slot looses

1. Copy the file again after formatting 2. Replace the memory card 3. Clean the card slot and press the card slot to fully contact

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Chapter VIII Common Problems and Solutions of Operation and … · 2020. 4. 10. · 3. Observe the hashboard temperature. If there is no hashrate due to excessive temperature, first