please help me in this query
You may be able to use get-cimstance with win32_physicalmemory. Drop this in to powershell and see if you get something useful: Get-CimInstance win32_physicalmemory | Format-Table Manufacturer
More on cimstance: https://docs.microsoft.com/en-us/powershell/module/cimcmdlets/get-ciminstance?view=powershell-6