panboy, does anyone actually get a mobo manual with a new computer, especially if it's a major brand? As far as I know, they do not.
tnyamutenha, if you do not have a mobo manual, but you know the brand and model of your mobo, visit the manufacturer's website and look for a downloadable manual or online info about such details for your mobo.
If you don't know the brand and model of your mobo, download
Belarc Advisor and run to get a report on your system.