Which onboard raid controller?

[paul_31]

I will be putting a Gigabyte GA-MA790XT-UD4P in a new build and to start off was planning on having 2x500GB drives in Raid 0 (backing up manually to external). The mobo supports raid on both the Southbridge and also a dedicated SATA2 chip -

South Bridge:

6 x SATA 3Gb/s connectors supporting up to 6 SATA 3Gb/s devices
Support for SATA RAID 0, RAID 1, RAID5, RAID 10 and JBOD

GIGABYTE SATA2 chip:

2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to 2 SATA 3Gb/s devices
Support for SATA RAID 0, RAID 1 and JBOD

It seems a silly question but would I see any differences between these controllers in a raid0 setup? Which would you suggest using?

Thanks,
Paul.

 

[paul_31]

Thanks guys, using the Southbridge also gives me the option of going for raid 5 if I add another drive. Is it possible to migrate from Raid 0 to Raid 5 or is it better to do a clean rebuild with Raid 5 from scratch?