Systeminfo
You can use the command “systeminfo” from the command line of your windows computer and it will get server information for that server. Tons of good info for building a inventory list of all your servers and hardware etc. More info on how to get your servers specs here.
Get server information and detailed configuration information about a client and its operating system, including operating system configuration, security information, product ID, and hardware properties, such as RAM, disk space, network cards and IP address.
You can also add a /s which will allow you to pull information from servers on the network / domain.
example:
C:\Documents and Settings\admin>systeminfo /s 192.168.1.5 > server.txt
This will pull server information for 192.168.1.5 and output it into server.txt