Just did an install of Debian 7.0 from DVD's onto a system using an ASUS X79 Sabertooth motherboard. Now the bios is set to IDE mode (NOT AHCI), this is due to Windows xp as an alternate OS Had some trouble until I disabled secure boot (uefi or what ever they call it). On completion of install system failed to boot, it was clear though that the reason was the installed kernel was using the AHCI drivers. After setting the bios to AHCI mode system booted OK. A couple of questions..... Why during the install did the installer set the intial ramdisk up for AHCI drivers when they were not enabled in the bios. Can Debian 7.0 be installed on a system with ide mode enabled, if so how does one do this. A search on the net was not enlightening. This is not any kind of disaster, I will be compiling my own kernel for this machine (in fact I have already done so) so one can easily get around this issue. Note 1, Sometime back I did a comparison on an ASUS P6X58D Premium MB between IDE and AHCI modes, a good deal of testing showed neither mode was head and shoulders over the other. Lindsay