• Code: 829
• Description: Self-diagnostic Error: Optional RAM
  The optional RAM returned an error during the self-diagnostic test.
• Causes: • RAM DIMM defective • Defective controller board

• Code: 835
• Description: Self-Diagnostic Error: Parallel Interface
  A loopback test error occurred.
• Causes: • Loopback connector not detected • IEEE1284 connector defective • Defective controller board

• Code: 836
• Description: Self-diagnostic Error: Resident Font ROM
  The resident font ROM returned an error during the self-diagnostic test.
• Causes: • Font ROM defective

• Code: 837
• Description: Self-diagnostic Error: Optional Font ROM
  The optional font ROM returned an error during the self-diagnostic test.
• Causes: • Font ROM defective

• Code: 838
• Description: Verification error
  The verification data of the clock generator is read via the communication bus. → The data contradicts the normal value.
• Causes: • Defective controller board

• Code: 850
• Description: Network I/F abnormal
  The IP address is incorrect, or the controller cannot accesses the network due to a driver error.
• Causes: • Incorrect network setting • Defective controller board

• Code: 851
• Description: IEEE1394 I/F abnormal
  The IEEE1394 interface cannot be used, due to a driver error.
• Causes: • IEEE1394 interface board defective • Defective controller board

• Code: 853
• Description: IEEE802 11b card startup error
  The machine starts up. → The IEEE802 11b card connection board is recognized. → The IEEE802 11b card is not recognized.
• Causes: • Loose connection between the card and the connection board