You need to look at the MB and see which socket has which number, plug the drive you wish to boot from in the lowest number.
u made my brain hurt!
you can fiddle somewhat in the BIOS, but if you work on the theory you boot from the lowest number, aim for that.
SO sorry, MonicaOutlander
BIOS is my friend, as is google! But thanks, FlashUnplugged
I'm with www.plurk.com/MonicaOutl..., however I'm still a little turned on... 
offers to show Lyrilen his interlacing skills
Oooh 
LOL - fair enough. i find it rather interesting cause somehow it sounds like english - but it isn't 
www.plurk.com/PacoPooley: Exactly!