I was about to launch, then remembered this page I had recommended to a friend. Its a nice, easy read on chipsets. Everything You Need to Know About Chipsets | Hardware Secrets
As to what chipset you have just type dxdiag in the search box, then click on the display tab, that'll show quite a few things including the bios version.
You can also type msinfo32.exe in the search box for info.
Or you can take a peek in the device manager.
Or you can download a 3rd party like Speccy or CPUID to tell you more about your computer's hardware.