Mainboard - Hardware - LED assignment

Location

Description

1. Power ON LED: (green)
This LED indicates that all necessary voltages in the ESX-3XL for running the CPU are given. At least +UE and D+ have to be powered on for this.
If this LED doesn't light, the ESX-3XL has no supply or it is damaged.

2. ERROR LED: (red)
This LED shows severe errors which were encountered during POST (Power On Self Test) or while the system is/was running. The following table shows various blink codes for various errors:

Blink codeError nameExplanation of error
LED is offNo errorWhile there is no error the LED remains off
LED is always onFlash ROM errorSystem encountered a flash ROM CRC error during booting up. System is halted. Please contact your local sales representative!
LED is continously fast flashing (5 Hz)EEPROM errorSystem encountered a EEPROM read error during POST or a EEPROM write error during runtime. It is possible that this error can be fixed by using the function x_sys_config_supervisor. If the error persists please contact your local sales representative!
LED flashes 3x, then pausing for app. 300msUF errorSystem encountered a low voltage power supply (< 8 V) error during runtime. This error is non-permanent.
LED flashes 2x, then pausing for app. 500msUsys errorSystem encountered an error on the system voltages during runtime. This error can be seen for a short time during power up and is non permanent.
LED flashes 1x, then pausing for app. 700msWatchdog errorSystem encountered an watchdog error. The watchdog wasn't retriggered in time.

3. User LED 1: (red/green)
This LED is freely programmable by the user. Look at x_sys_set_led.

4. User LED 2: (red/green)
This LED is freely programmable by the user. Look at x_sys_set_led.