[NUC] Failed Boot Issues on NUC Products
If your NUC won't start, reference the table below for troubleshooting suggestions. If your issue does not appear on this page, contact ASUS Customer Support.
| Description | Troubleshooting |
| LED on power button won't light up | NUC Not Powering On |
| LED on power button flashes | |
| LED on power button is lit solid, but no video |
|
| See error "No Boot Device Found" or "A bootable device has not been detected" | "No Boot Device Found," or "A bootable device has not been detected" Message on an NUC Product |
| System hangs during boot, POST | Troubleshooting for System Hangs, Unexpected Shut Down, or Blue Screens (BSOD) on NUC Devices |
| No Display after a BIOS Update | NUC Shows a Black Screen After a BIOS Update |
There is also an NUC - No Boot Troubleshooting Wizard.
Power Button LED Reference table
| Default Power button LED Color | Meaning |
| Blue or white (solid) | Powered on (S0 power state) |
| Blue or white (breathing) | In Modern standby (S3 power state) |
| Blue, white, Orange (flashing) | HDD activity |
| Red | Catastrophic error |