Hi Guys, so I finally got all my components today and built my first ever budget PC rig for gaming. To say I was pooing it all the way through building it is an understatement But I did it and it turned on, posted and everything woo hoo So to help you with answering my eventual question, here are the parts of my build - Motherboard - ASUS M2R32-MVP AM2 AMD 580x Crossfire PSU - Corsair 620HX Modular CPU - AMD 6000x2 @ 3ghz CPU Cooler - Coolermaster Vortex Memory - 2x 1gb 800 Kingston DDR2 Optical Drive - 20xDVD-/+RW SONY DRU Hard Drives - 2 x 250gb WD 250AAKS SATA II GPU - Powercolour HD 4850 OS - Windows Vista Premium 32 bit edition So, as I said it posted and I went into the bios, cpu reported correctly and at the correct speed. Full Allocation of memory was there and at the correct speed. Both hard drives were identified and also the DVD was shown and identified. Ok so being a novice I didnt know what to do to start setting up the RAID and installing the OS. Anyways, found a description of setting up raid 0 in the motherboard manual and followed that. It allocated it fine. Then rebooted and set boot device priority to DVD first, then the hard drives. Then inserted Vista disc rebooted and it started installation. Took a while but then said CD/DVD device is missing a driver, insert disk/usb/etc.. to locate and install drivers. Tried all the disks that come with motherboard and didnt locate anything....Reset and tried again, same result. So then I thought oh, maybe i have to allocate raid once vista is installed. So set it to ACHPI (? is that right) rather than RAID and it installed Vista fine without asking for anything but now I find I cannot enable RAID as when I try to boot it just says missing OS. If i set it back to ACHPI it boots up fine but its like I have just the one disk drive. I am lost..... Total NOOB alert. Please can someone guide me through what should have been the correct installation process if I want a fully working RAID 0 system or if I can now enable it even though VISTA is installed on just the one hard drive.. Basically I need help big time. Other than that everything seems to be running sweet If you read it all that lot and are still willing to help me I applaud you and you will have a friend for life Thanks in advance.