When you are running a Windows server core version and you need to find out the specs of your server then this tutorial will show you how to do that with a small PowerShell script.
Get Server Details with PowerShell
Step 1. Open PowerShell with elevated privileges.
Step 2. Execute the following two commands (as shown in the screenshot at the bottom).
get-wmiobject win32_computersystem
Get-WmiObject -class win32_processor
Example result:
