• Code: 851
• Description: IEEE 1394 I/F Abnormal
• Causes: • IEEE1384 interface board defective • Controller board defective

• Code: 853
• Description: Wireless LAN board error 1
  At startup the wireless LAN board could be accessed, but the wireless LAN board (IEEE 802.11b or Bluetooth) could not access the controller board.
• Causes: • Wireless LAN board not installed when the machine was turned on

• Code: 854
• Description: Wireless LAN board error 2
  The board that holds the wireless LAN board can be accessed, but the wireless LAN board (802.11b/Bluetooth) itself cannot be accessed while the machine is operating
• Causes: • Wireless LAN board has been removed during machine operation.

• Code: 855
• Description: Wireless LAN board error 3
  An error was detected for the wireless LAN board (802.11b or Bluetooth).
• Causes: • Wireless LAN board defective • Wireless board connection not tight

• Code: 856
• Description: Wireless LAN board error
  An error is detected for the wireless LAN board (802.11b or Bluetooth).
• Causes: • Wireless LAN board defective • PCI connector loose

• Code: 857
• Description: USB I/F Error
  The USB driver is unstable and generated an error. The USB I/F cannot be used. The USB driver can generate three types of errors: RX, CRC, and STALL errors. Only the STALL error can generate this SC code.
• Causes: • USB 2.0 disconnected • Controller board defective

• Code: 860
• Description: Startup without HD connection at main power on
  The hard disk connection is not detected.
• Causes: • Cable between HDC and HDD loose or defective • HDD power connector loose or defective • HDD defective • Replace the controller board

• Code: 861
• Description: HDD error 1
  The HDD was not detected when the machine was turned on. The hard disk connection is not detected.
• Causes: • Cable between HDC and HDD loose or defective • HDD power connector loose or defective • HDD defective • Replace the controller board