Drivers

I will assume(as dangerous as that can be) that this is a custom built PC. If not, if its a name brand such as Dell, HP, Compaq, Gateway, etc. go to the respective website and search their for model# of PC.

Other wise since im assuming here you should be able to take the computer cover off and look at the mother board. One can usualy find identifying marks near the expansion slots or perhaps near the CPU or RAM. Just depends on brand. If you only find some model#s you might can do a search on google or similar search page. A simple possibility may be to look on the initial boot screen. During the POST some makers will have their name displayed there. You might also be able to enter the system Setup or BIOS and find info there. However if you are new to system Setup be careful not to change anything.
You can also try using system information tool in Start =>Programs => Accessories => Sytem Tools. This is usually on Win98 or higher systems.

Hope this is helpful or gets you in the right direction

Jason

The BIOS string that appears near the bottom of the screen during the RAM test is your best information.

With the BIOS string, you can go to either www.motheboards.org
or www.wimsbios.com
and use the tools to find out who made the motherboard.
2 caveats, this does not work well for "OEM" motherboards, as the system manufacture usually is the only support.
And, dead manufactures. There are few resources for dead PC component mfgs.

You can try the forum at motherboards.org though.Next, look at the chipset on the board, and use the chip mfgs reference drivers. These are often more up to date then the ones from the motherboard mfg.
The only caveat here is "mixxed" chipsets, where one chip is AMD, and the other is VIA. You have to pay close attention to installing the correct drivers.

Chas