Checking installed hardware components
A few options to check for installed hardware components for the system; besides looking for it physically.
BIOS
Access BIOS, view/learn the options in the BIOS menu; check CPU and Memory topology.
IPMI
Access IPMI, view/learn the options in the web GUI, and view the hardware health/information. You will also find logs there that will report system issues possibly caused by any of the installed hardware.
Linux Commands
CPU
lscpu
Memory
Total capacity: free -m
Population by slot: dmidecode -t memory
Drives
fdisk -l
RAID
cat /proc/mdstat
Network devices
lspci | grep -i eth <or the make/model>
http://www.yolinux.com/TUTORIALS/LinuxTutorialNetworking.html
https://opensource.com/life/16/6/how-configure-networking-linux
Graphics card
Examples are NVIDIA-specific since they are more commonly used on our end.
nvidia-smi
lspci | grep -i eth
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