PCI Raid Card vs. On Board Raid

[theyhaveahero]

I pretty much want to attain results much like that of the OCZ Z-Drive. Ultimately, which is faster? 3 SSD in a raid array plugged onto the motherboard (Asus II Gene) or 3 SSD pluged into a Raid Card into the PCI slot.

Its still unclear from all the reading if its possible to boot an operating system from a Raid Controller Card plugged into the PCI slot. Can anyone just put me out of my misery and tell me if this is possible? (Asus II Gene mobo in reference).

I've still to purchase the raid card so any tips on one that would fulfil this requirement would be much appreciated!

 

[theyhaveahero]

Cool, thats cleared up. Time to get a raid card, running out of storage space, need more Sata Ports... any recommendations?

Thats the big question, which is faster? Raid Card or On Board Raid??? I still need the fastest interface to install my OS and other apps... anyone know which is fastest?