How to check System Information and vendors of MotherBoard/Processor/RAM in Linux?

To check the system’s information and manufacturers of MotherBoard, Processor, RAM and other hardware from the command line in a Linux machine, install the package “dmidecode”. You can search and install the dmidecode package using yum.
Check your Linux server architecture i.e. 32bit OR 64bit:

# uname -p

Search for the dmidecode package

# yum search dmidecode

Depending on the architecture, install the proper dmidecode package

# yum install dmidecode

You are done. To check all the hardware information of the server, execute

# dmidecode