• Code: SC822-3003
• Description: Self-diagnostic error 3: HDD
  Check performed when HDD is installed
• Remedy: • HDD defective • HDD harness disconnected, defective • Controller board defective

• Code: SC822-3004
• Description: Self-diagnostic error 3: HDD
  No response to the self-diagnostic command from the ASIC to the HDDs
• Remedy: • HDD defective

• Code: SC822-3013
• Description: Self-diagnostic error 3: HDD
  Mandolin does not respond, the HDD device remains BUSY for more than 31 s, or the BUSY signal does not drop within 6 s after the diagnostic command is issued to the HDDs
• Remedy: • HDD defective • HDD connector loose or defective • Controller defective

• Code: SC822-3014
• Description: Self-diagnostic error 3: HDD
  Error returned from HDD in response to the self-diagnostic command, Mandolin could not be located due to a read/write error at the HDD register.
• Remedy: • HDD defective

• Code: SC824
• Description: Self-diagnostic error 4: NVRAM NVRAM device does not exist, NVRAM device is damaged, NVRAM socket damaged
• Remedy: • NVRAM defective • Controller board defective • NVRAM backup battery exhausted • NVRAM socket damaged

• Code: SC826-1501
• Description: Self-diagnostic error 6: NVRAM (option NVRAM)
  The difference between the 1 s measured for RTC in the NVRAM and the 1 s timeout of the CPU is out of range, or the NVRAM is not detected.
• Remedy: • NVRAM defective • NVRAM installed incorrectly • Replace RTC backup battery

• Code: SC826-15FE
• Description: Self-diagnostic error 6: NVRAM (option NVRAM)
  Backup battery error. Battery is exhausted or not within rated specification.
• Remedy: • Replace RTC backup battery

• Code: SC828
• Description: Self-diagnostic error 7: ROM • Measuring the CRC for the boot monitor and operating system program results in an error. • A check of the CRC value for ROMFS of the entire ROM area results in an error.
• Remedy: • Software defective • Controller board defective • ROM defective NOTE: For more details about this SC 833, SC834 error, execute SP5990 to print an SMC report so you can read the error code. The error code is not displayed on the operation panel. The additional error codes (0F30, 0F31, etc. are listed in the SMC report.