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

• Code: 835
• Description: Self-Diagnostic Error: Parallel Interface
  Loopback test error.
• Causes: • Loopback connector not detected • IEEE1284 connector defective • Controller board defective

• 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: Self-diagnostic Error: Clock Generator
  Verify error occurred when setting data was read from the clock generator via the I2C bus.
• Causes: • Clock generator abnormal • I2C bus abnormal • CPU port for the I2C bus abnormal

• Code: 850
• Description: Network I/F Abnormal
• Causes: • NIB defective • Controller board defective

• Code: 851
• Description: IEEE 1394 I/F Abnormal
• Causes: • IEEE1384 interface board defective • 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 HD loose or defective • HD power connector loose or defective • HD defective • HDC defective