L7 Diagnostic logs and solutions

1. Fan error

If the log returns:：“ERROR FAN LOST: fan lost”

Then the fan meets an error. If the fan speed = 0 or having distinguishing differences from others, it is abnormal. Simply change it.

2. Reading temperature error

If the log returns:“ level=error pid=865 chain=2 error="temp lost" msg=check_temp ”

Normally caused by temperature sensors on hash board. May be fixed by unplug and reconnect the wires. If that doesn’t solve the problem, try send it back for fixing.

3. Lost of chips

If the log returns:“chain=2 msg="ChipSetting_get_addr_LTC detect 0 chips”or“level=notice pid=875 chain=2 msg="ChipSetting_get_addr_LTC detect 0 chips"”

Normally because of the chips are not found. May be fixed by unplug and reconnect the wires. If that doesn’t solve the problem, try send it back for fixing.

4. Data storage error

If the log returns: “ EEPROM eeprom_key_version or eeprom_encryption_algorithm error!”

Normally caused by the chip exception of storage chip on hash board. Try card flash before send back for fixing.

5. Version error

If the log returns:“level=error pid=23808 msg="chain_offset 1, chain 1, get_sw_version error!"

Normally caused by abnormal version info of hash board. Try replug the cable or card flash before send back for fixing.

6. Pool connection error

If the log returns:“ stratum connection timeout ”or“ level=error pid=879 poolno=2 msg="...retry after 30 seconds failures 1" ”

Normally the error is caused by connection with the pool. Need to check the internet and pool.Be aware that this could be caused by unstable connection.Even when miners can operate well, we’ll need to check the internet and the pool.

7. Internet error

If the log returns：“ level=fatal pid=22126 error="net lost" msg="lost internet 1200 seconds > 20 minutes, poweroff." ”

Normally caused by internet error. Check the internet settings.

8. Setting error

If the log returns:“Most likely you have input the wrong URL, forgotten to add a port, have not set up workers, or the network was disconnected."”

Normally caused by miss or false input info of pools. Check the pool settings.

If you have any questions, please feel free to contact BITMAIN Customer Support.

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