• Code: E744-0900
• Description: Model code mismatch
• Causes: Model code mismatch
• Remedy: Change to proper bootable.

• Code: E744-1000
• Description: Model code mismatch
• Causes: Mismatch of the series or model of the firmware sent at the time of downloading
• Remedy: Check the supported series or model of the firmware, and burn the correct series or model of firmware.

• Code: E744-1100
• Description: Model code mismatch
• Causes: Detection of falsification of the Controller Board
• Remedy: - Turn OFF and then ON the power. - Replace the Main Controller PCB.

• Code: E748-2012
• Description: Error in Main Controller
• Causes: Failed to rewrite due to no more alternative block of Flash ROM (NAND) available.
• Remedy: -Replace the Main Controller PCB.

• Code: E748-4000
• Description: Error in Main Controller
• Causes: Timeout of G-Chip loop back
• Remedy: Replace the main controller PCB.

• Code: E748-4020
• Description: Error in Main Controller
• Causes: Unknown device detected on the PCI
• Remedy: Replace the main controller PCB.

• Code: E760-0000
• Description: CPU Processing Error
• Causes: CPU exception occurred.
• Remedy: Turn on the power again.

• Code: E804-0000
• Description: Fan failure
• Causes: Power supply fan failure
• Remedy: • Check the connection of the connector. • Replace the fan. • Check the harness (check for disconnected/pinched harness)