1. Restart the NVR. When press
to enter setup (F4 on Remote Keyboard) is displayed, press Del to enter the BIOS main menu.
2. Click the IPMIBoot tab.
If the BIOS boot sequence is incorrect, 1st Boot Device is USB.
BIOS boot sequence
The BIOS boot sequence has not been set back to the factory settings after the it is modified to install the operating system, which causes the NVR startup failure.