Ok im having trouble i got a comp from my uncal and he die. ( thats why i got it but he dosen't have a hard drive or floppy in it so i can only get into the bios but there is an administrator password so i am locked out how do i crack it or what password would i use to get around it?

i have tried ytaking out the battery but that didn't work it stiull has the password can u plz help me?

he is the motherbord stats it's

Phoenix Rom Bios Plus Version 1.10 A04

Dell System Optiplex GX20 series
Bios Version A04