Dell PowerEdge B02S Hardware Owner's Manual page 11

Static / Dynamic IP Switch Function Instruction
To switch from DHCP to static or vice versa:
Hold down the ID button for 5 seconds
While pressing the ID button, press and hold the power button for 5 seconds
Release the power button, and then the ID button
It will take ~30 seconds to change the configuration
The ID light will indicate which mode has been selected:
- Solid for 5 seconds indicates static IP
- Flashing for 5 seconds indicates DHCP
If the default IP address is changed, switching DHCP to static IP will change the IP address back to the
default.
Default IP address is 192.168.0.120