开始时出现以下字母the device in the system modular bay cannot be identified.It may not be completely inserted or may have some other problem.Please read and complete the following stets in order:1:Press the device completely and firmly into the bay.2:Power off the system.3:Press the power button to retry detecting the device.这个是这么回事？按ESC还是可以正常使用，但是光驱不亮了，按不出来光驱了，请告诉指点下
