my Gigabyte mobo (GA-8ihxp) has an embedded Promise RAID chip and I have successfully installed two ata133 drives in raid 0 and installed XP, works fine and is a great speed upgrade.
Does anyone know if an external, PCI slot Raid controller would provide better performance than the embedded raid controller? is the embedded Promise controller basically the same as a PCI based controller or does it count as 'software raid' i'm not sure?
Better performance with RAID controller card, and much better features, one if card or mobo dies, you can get another and save RAID arrays. Unlikely with onboard, since mobo would probably be out of production or changed chipset, which means RAID is toast too.
Costwise, onboard hands down, Performance and Features, price aside, RAID card all the way.
I was reading the "regular" PCI has a transfer rate of 266mb/sec.
as long as there is not a lot of other things accessing the PCI bandwidth at the same time, a raid 0/1 card should have no problems with most 7200 rpm drives in raid.
I would consider buying. of course if you have PCI express or equiv. bandwidth should not be a problem.
if you are pci, then the Promise TX2300 supports raid 0, raid 1 with sata 2 drives. (also compatable with sata 1 hard drives.