User Manual

Table Of Contents
2-21
KRPA-U16
5. Hard disk activity LED (HDDLED1)
This LED is for the storage devices connected to the onboard SATA, or SATA/SAS
add-on card. The read or write activities of any device connected to the onboard SATA,
or SATA/SAS add-on card causes the rear panel LED to light up.
6. Q-Code LEDs
The Q-Code LED design provides you with a 2-digit error code that displays the system
status. Refer to the Q-Code table on the next page for details.
The Q-Code LEDs provide the most probable cause of an error code as a starting
point for troubleshooting. The actual cause may vary from case to case.
Please refer to the Q-Code table in the Appendix section for more details.