• Code: SC818
• Description: Watch-dog error While the system program is running, other processes do not operate at all.
• Causes: • Defective controller • Software error
• Remedy: 1. Turn the main switch off and on. 2. Replace the controller. 3. See NOTE 1 at the end of the SC table

• Code: SC819
• Description: Fatal error [696E] Process error System completely down [766D] Memory error Unexpected system memory size
• Causes: • Defective RAM DIMM • Defective ROM DIMM • Defective controller • Software error
• Remedy: 1. Turn the main switch off and on. 2. Check and/or replace the RAM DIMM. 3. Check and/or replace the ROM DIMM. 4. Replace the controller. 5. See NOTE at the end of the SC table.

• Code: SC820
• Description: Self-diagnostics error: CPU [XXXX]: Detailed error code [0001] to [06FF] CPU error During the self-diagnostic, the controller CPU detects an error. There are 47 types of error code (0001 to 4005) depending on the cause of the error. The CPU detects an error and displays the specific error code with the program address where the error occurs).
• Causes: • System firmware problem • Defective controller
• Remedy: 1. Turn the main switch off and on. 2. Reinstall the controller system firmware. 3. Replace the controller. When the problem cannot be fixed with the above procedure, the following information displayed on the screen needs to be fed back to a technical support center. • SC code • Detailed error code • Program address

• Code: SC820
• Description: Self-diagnostics error: CPU [XXXX]: Detailed error code [0702] [0709] [070A] CPU/Memory Error During the self-diagnostic, the controller CPU detects an error. There are 47 types of error code (0001 to 4005) depending on the cause of the error. The CPU detects an error and displays the specific error code with the program address where the error occurs).
• Causes: • System firmware problem • Defective RAM-DIMM • Defective controller
• Remedy: 1. Turn the main switch off and on. 2. Reinstall the controller system software. 3. Replace the RAM-DIMM. 4. Replace the controller.

• Code: SC820
• Description: Self-diagnostics error: CPU [XXXX]: Detailed error code [0801] to [4005] CPU error Same as [0001]
• Causes:
• Remedy:

• Code: SC821
• Description: Self-diagnosis error: ASIC [0D05] The CPU checks if the ASIC timer works properly compared with the CPU timer. If the ASIC timer does not function in the specified range, this SC code is displayed.
• Causes: • System firmware problem • Defective RAM-DIMM • Defective controller
• Remedy: 1. Turn the main switch off and on. 2. Reinstall the controller system firmware. 3. Replace the RAM-DIMM. 4. Replace the controller board.

• Code: SC822
• Description: Self-diagnostic error: HDD (Hard Disk Drive) [XXXX]: Detailed error code [3003] Timeout error [3004] Command error When the main switch is turned on or starting the selfdiagnostic, the HDD stays busy for the specified time or more
• Causes: • Loose connection • Defective HDD • Defective controller
• Remedy: 1. Turn the main switch off and on. 2. Check that the HDD is properly connected to the controller. 3. Replace the HDD. 4. Replace the controller.

• Code: SC823
• Description: Self-diagnostic error: NIB [XXXX]: Detailed error code [6101] MAC address check sum error The result of the MAC address check sum does not match the check sum stored in ROM. [6104] PHY IC error The PHY IC on the controller cannot be properly recognized. [6105] PHY IC loopback error An error occurred during the loop-back test for the PHY IC on the controller.
• Causes: • Defective controller
• Remedy: 1. Turn the main switch off and on. 2. Replace the controller.