Using Raid Card rather than Onboard Raid can lower cpu resources, Moreover, moving on raid card.
Considering PCI Raid Card and PCI-E Raid Card, configuring on raid 0, will the type of the card affect on the transfer performance since PCI-E x1 running at 250MB/s and PCI running at 133MB/s.
My options and justifications for either one would be:
PCI: more available slots, cheaper price
PCI-E: lower power consumption(haha), more bandwidth?!
Last but not least, I would like to save the only PCI-E x1 for futher expansion.