Or rather than take your PC to bits, download a free copy of Belarc Advisor. It gives you a complete audit of the hardware and software in your PC. It does much more than that however, it also checks whether your system is secure, whether your hard drive is healthy or not, the state of your memory etc, etc. It outputs all this data as a webpage on your browser. It really is a very useful utility. Incidentally, this works with any version of Windows and is as safe as houses. I've used it for ages without any issues
p.s. Eeee, I feel reet at 'ome on this thread, t'is all soundin' so familiar like. I'll go put kettle on...