Following script displays the RAM present on a system
Option Explicit
Dim objWMIService, objComputer, colComputer
Dim strLogonUser, strComputer
strComputer = "."
Set objWMIService = GetObject("winmgmts:"& "{impersonationLevel=impersonate}!\\"& strComputer & "\root\cimv2")
Set colComputer = objWMIService.ExecQuery("Select * from Win32_ComputerSystem")
For Each objComputer in colComputer
Wscript.Echo "System Name: " & objComputer.Name & vbCr & "Total RAM " & objComputer.TotalPhysicalMemory/(1024*1024)
Next
WScript.Quit