You can use wmic command to see the information related to RAM. Run the following command on Windows terminal.
wmic memorychip get devicelocator, manufacturer, partnumber, capacity, speed, formfactor
The output of the above command will look like this:
Capacity DeviceLocator FormFactor Manufacturer PartNumber Speed4294967296 Bottom-Slot 2(under) 12 Elpida EBJ41UF8BCS0-DJ-F 10674294967296 Bottom-Slot 1(top) 12 Ramaxel Technology RMT3020EC58E9F1333 1067