Description: HDD Data Overwrite Security SD card error The 'all delete' function cannot be executed but the DataOverwriteSecurity Unit is installed and activated.
Causes: • Defective SD card • SD card not installed
Remedy: 1. Replace the NVRAM and then install the new SD card. 2. Check and reinstall the SD card.
Code: 878
Description: TPM system authentication error The system firmware is not authenticated by TPM (security chip).
Causes: • Incorrect updating for the system firmware • Defective flash ROM on the controller board
Remedy: Replace the controller board.
Code: 900
Description: Electric counter error Abnormal data in the counters.
Causes: • Defective NVRAM • Defective controller
Remedy: 1. Check the connection between the NVRAM and controller. 2. Replace the NVRAM. 3. Replace the controller.
Code: 990
Description: Software performance error The software makes an unexpected operation.
Remedy: 1. Turn the main switch off and on. 2. Reinstall the controller and/or engine main firmware. • See Note 1 at the end of the SC table.
Code: 991
Description: Software continuity error The software has attempted to perform an unexpected operation. However, unlike SC 990, the object of the error is continuity of the software.
Causes: • Software program error • Internal parameter incorrect, insufficient working memory.
Remedy: This SC is not displayed on the operation panel (logging only).
Code: 992
Description: Undefined error Defective software program
Causes: • An error undetectable by any other SC code occurred
Remedy: Print the "Logging Data" with SP5990-004 and then check the SP7990. If 498-Engine is found in the SP7990; 1. Check the harness connection of the temperature/humidity sensor. 2. Replace the temperature/humidity sensor.