i just purchased an intel D915PBL MB with a P4 3.4 HT CPU to upgrade my computer. this motherboard only has 1 IDE slot and I have my DVD-ROM and DVD-RW connected to it. i had to get a PCI IDE controller in order for my HD's to run. the reason i did not switch it around the other way is i do not want to slow down my dvd writing process and i have a Lian-Li server case which is quite large so i would have to get a new IDE cable which i do not want to do. my PROBLEM is my OS will not boot from the IDE controller. I managed to install my OS by only connecting one DVD-ROM and HD to the MB's IDE slot. I realized after that i could have installed it throught the PCI controller. I want to keep the exact same setup BUT can anyone help me get it to boot from the IDE controller? I looked around in the BIOS and found an option to "boot plug and play". i enabled it assuming it should help the problem but it didn't.