First off, go to device mgr and see if the cdrom is listed there and see if there are any red or yellow marks in your device mgr.
Now we have been able to learn,lol, that dma doesnt have to be enabled on cdroms, so we dont have to go there.
Just check device mgr for any marks.
Then turn off machine and unhook the cdrom, both the 4 poin molex and the other ide connector and reboot to the bios and make sure you dont show a cdrom in the bios, if you do then set the bios for no cdrom.
Then quit the bios and boot up. Go to device mgr to make sure there is no cdrom listed, then turn computer off again.
Now re-connect the cdrom, the ide and the molex connnector.
Then turn on machine and see if bios recognizes it and then boot to windows and see if dev mgr recognizes the cdrom.
Then try cdrom and see if that fixes the problem. If not, then we can go to the next step.
Good advice + great people = tek-tips