I have my raid setup with 2 74 gb raptors and all is well. But I have a 500gb seagate that I can see in the bios and it was shown in the Intel matrix storage manager, but I cannot see it in explorer. Also is anyone having any problems with utilities that came on the Asus CD and Vista 64. I loaded the utilities and started to experience look-ups when I went on the internet and had to delete them. I have updated my bios to 802. Thanks for the help.