I am planning to set up a system and have two 15k RPM Ultra 320 scsi hard drives in a Raid-0 configuration. does anyone know if i would lose any noticable speed performance if i use my SCSI Controller Card, in a standard PCI slot instead of a PCIx slot. Because the motherboard that i am getting (Asus A8N-SLI Deulux) doesn't have PCIx.