I am rebuilidng a an old dell dimension xps t550 with an award bios. I tried to install 3 different cd writers and the system doesn’t recognize then during boot up/post. I have switched the IDE cables and tried swapping them between the IDE controller on the mb, but they are still not being recognized. I even powered down the board by removing the system battery for 24 hrs and to refresh the bios and still no luck. Please advise. The hard drive works fine in both ide controllers.
