Just to add, there is nothing wrong with your RAID array Tran, it is running just as it should be. Your HD Tach scores are right in line where they should be. Ignore Sandra, it's a junk HD benchmark. As for the downward spikes in HD Tach, you're probably booting off your RAID array, which explains the spikes. Don't worry about them, they should be there. As for the CPU test, check to make sure there is nothing running in the background, otherwise, don't worrk about it, if you don't notice system slow down, it's nothing to be concerned about.