I have an acer 486 that wont recognize any thing over 500mgs. I also want to add a cdrom that it also won't let me do. Will a controller card pick up a hard drive if setup by itsself? I mean i can disable the bios settings as NOt having any drives and run off of the new controller card. Also run the cdrom off it also too. Will that work and do i need to buy an ide or eide card?