This a clip from the readme file from the new biso (b5)
When you upgrade bios from old version to B5, we highly recommend you backup
your system and data to an independent storage device first. New HPT 2.32
bios may corrupt original RAID configuration created on old bios occasionally.
That means you may need to rebuild RAID configuration. If it happens, all the
data on RAID-0 will be gone!
A guy on a other forum toled my that I worked for I'm to go from 2.31 to 2.32 with raid 0.
Without losing any setup.
Did anyone else tryed this?