Hey everyone. I haven't actually searched the forums for an answer to this but it's been troubling me since I installed my WD Caviar SE16 earlier. Basically, it's a SATA 2 drive, I was planning on logging into Vista on my primary ATA drive and making a boot disk, unfortunately I must have been having an unlucky evening because I couldn't seem to get any form of media to copy the boot files effectively (Those damn Floppies). I had noticed in my mobo manual (Asrock 939 Duel SATA 2) that you had 2 methods for SATA 2 integration... IDE and SATA Apparently setting it to SATA requires the boot disk (and won't allow you to install a OS whatsoever) But it mentioned that IDE did not require a boot disk and allows you to install the OS effectively without one. So with all of my efforts coming to nothing, I decided to cop out and dodge the whole boot disk crap and do the IDE option, everything installed fine and it's all working lovely and fast, but I can't help but feel that by taking the easy way out i'm missing out on some speed or something. Basically i'm running 1 Primary and 1 Slave ATA 133 drives and the new one is the SATA 2 WD Caviar one. The Caviar has been connected properly (SATA 2 port on the mobo etc) so i'm assuming speed and such won't be affected in any way, but that's what my question is... Is there a difference between the two bios options? (IDE - No bootdisk or SATA - Bootdisk) and am I limiting myself by using IDE mode? My only other question was about a similar Bios option, namely SATA 2 operation mode and it's 2 options, Normal and Strong, does anyone happen to know the difference between them? Thanks in advance everyone, I would appreciate any responces Matty.