When the OptiX OSN 1500 CXL board is upgraded form the V1R3B025SP03 version to the V1R3B030SP04 version, it uses the slot for the backup SCC board at a node with a single SCC board. After the upgrade, reset the backup CXL board housed in slot 83. It is detected that the backup board resets every six minutes. The data backup fails, but the version is queried to be correct. In addition, the number and size of software files are correct.