Register Test Failed and Overheating

Hello. My LimeSDR Mini failed in LimeQuickTest at register test.

[ TESTING STARTED ]
->Start time: Wed Feb 19 15:29:08 2020

->Device: LimeSDR Mini, media=USB 3.0, module=FT601, addr=24607:1027, serial=1D4C3AE2FED17C
Serial Number: 1D4C3AE2FED17C

[ Clock Network Test ]
->REF clock test
Test results: 2807; 16004; 29201 - PASSED
->VCTCXO test
Results : 6711016 (min); 6711173 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 13 02 0D 13 02 0E 05
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
RegistersTestInterval(startAddr=0x2c0, endAddr=0x2e7) - failed
RegistersTestInterval(startAddr=0x2c0, endAddr=0x2e7) - failed
RegistersTestInterval(startAddr=0x380, endAddr=0x3a7) - failed
RegistersTestInterval(startAddr=0x380, endAddr=0x3a7) - failed
RegistersTest() failed
->LMS7002M Test FAILED

[ RF Loopback Test ]
->Configure LMS
->Run Tests (TX_2 -> LNA_W):
CH0 (SXR=1000.0MHz, SXT=1005.0MHz): Result:(-13.2 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_1 -> LNA_H):
CH0 (SXR=2100.0MHz, SXT=2105.0MHz): Result:(-13.4 dBFS, 5.00 MHz) - PASSED
->RF Loopback Test PASSED

=> Board tests FAILED <=

Elapsed time: 2.40 seconds

Seconds after plug-in even without any activity its temperature reaches 85-90 C. I tried with different devices but overheating didnt change. In LimeSuiteGUI sometimes I take calibration error but sometimes calibration finishes successfully. After successful calibration I can tune any frequency but overheating problem still remain.

LimeSuite --info result

######################################################

LimeSuite information summary

######################################################

Version information:
Library version: v19.04.0-gabf82140
Build timestamp: 2019-12-27
Interface version: v2019.1.0
Binary interface: 19.04-1

System resources:
Installation root: /usr/local
User home directory: /home/nuric
App data directory: /home/nuric/.local/share/LimeSuite
Config directory: /home/nuric/.limesuite
Image search paths:
- /home/nuric/.local/share/LimeSuite/images
- /usr/local/share/LimeSuite/images

Supported connections:

  • FT601
  • FX3
  • PCIEXillybus

Thanks for your help. If anything necessary I can share.