I was directed to a utility, Belarc Advisor, a little while back. It shows a lot of what we need to know to help people. It scans your system to tell everything from processor specs to motherboard specs to software keys (DO NOT include software keys when copying and pasting!)
http://www.belarc.com/free_download.html
Click on the image that says "Click here to download your free copy of the Belarc Advisor." Run it; after install it will come up with a primary result which is then displayed in your default browser in an easy-to-read interface. You can run it again later with its desktop/start menu shortcut.
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I think I ought to add something:
- Bus Clock: If you have DDR it will list half of the stated memory speed. Do not be alarmed - it's the way DDR works
I'll add more later as necessary.