BIOS

If you cannot get to the bios, then the best option is to flash it, it should reset to default settings. But if it fails to boot after a hardware change, it may be incompatible hardware causing the problem. Try pulling the drive out and see if the system boots first, if not, flash the bios.

If the jumpers on new drive are set to conflict
with another drive or CD, the systems may not boot.
Look at the drives label and there should be a
example of setting drive jumpers, also check the other drive/CD jumpers pins on the same cable to insure it's not set to single or master.
Set the end of cable drive to master and the lower connector drive to slave. Also to reset bios just pop battery out of motherboard and snap back in. Lastly insure cable is in inserted correctly - Red strip on cable and facings Red wire on power cable also insure prongs are not bent.