how do enter bios?

[daveymark]

I set up my computer to boot from the cd rom and then the hard disk, but now i need to change the settings. How do I enter the bios? It goes really fast right from the biostar logo to the prompt saying i need to put a system disk in the CDROm.
\Thanks!

[GroundZero3]

try f2 or delete. who makes the motherboard or the computer?

[daveymark]

its a biostar motherboard m7vig Pro

f2 or delete worked, thanks