P5B doesn't have RAID support.
Just a word of warning for those oconsidering he P5B (non-deluxe) as the so call RAID 0,1 support from the JMicron just does not work. It only have 1 internal SATA connector and one eSATA external connector. While theorotically you can use a eSATA multiplier board ($80-$120) to to give you up to 5 SATA connector so you can run RAID. There is an additional problem that once you set the JMicron controller to RAID in BIOS. It knocks out you primary (and only) IDE bus so you can't using any optical drives unless you get a SATA version. It really messed me up my new PC and I ended up having to spend another $70 to get a PCI-E 2 channel SATA II RAID card to get my RAID setup running. Isn't this borderline flase advertising?
