If you are using a Windows computer, then you know how easy it is to find out the capacity of the installed physical memory banks (RAM) on your system. You can see the amount of RAM installed through the System Information screen that you can open by pressing the hotkey Win + Pause. But other than the amount of RAM installed on your motherboard, it does not show any other information related to the memory modules. If you want to know about the memory transfer speeds, memory clock speed, memory manufacturer and more technical information, then you can use the free RAMMon utility in Windows.
The RAMMon utility is designed by PassMark software and is able to access the SPD data (serial presence detect data) which contains information about the manufacturer, the clock speed and other data of the DDR2, DDR3, XMP and EPP memory devices and even some older memory types.
After installing the RAMMon, you can launch it from its desktop shortcut. It will read the SPD information from your memory modules and show it to you in an easy to read tabular format. All the information like RAM type, memory clock speed, memory transfer speed, maximum bandwidth, capacity, manufacturer name, SPD version, manufacturing date, module part number and more is shown.
If you have more than one memory modules installed, then it shows information about all the memory modules installed in various RAM slots on your motherboard. If you want to save all the displayed information, then RAMMon allows you to save the information as HTML or TXT files. You can click on the Export/Copy button to save it into a file or copy the data to the clipboard.
Conclusion: RAMMon can tell you detailed information about the installed memory modules on your computer that is otherwise inaccessible to the Windows users. It reads the SPD data from your RAM modules and shows values stored such as the memory capacity, the manufacturer, serial number, model part number, the memory type, the module voltage and more.
You can download RAMMon from http://www.passmark.com/products/rammon.htm.