There are a couple of commands that can find out your machine’s motherboard manufacturer,name and other informations,list CPU ID and serial number,BIOS information.
This command gives your CPU ID:
sudo dmidecode -t 4 | grep ID
and serial number:
sudo dmidecode | grep Serial
The CPU information:
sudo dmidecode -t 4
BIOS Information:
sudo dmidecode -t 0
Motherboard information:
sudo dmidecode -t 2
and OEM:
sudo dmidecode -t 11