A Dell Dell notebook BIOS Preparing to begin Setup problem

Yesterday to help relatives install the system, is a Dell notebook, originally thought is very simple, but in the BIOS to modify the SATA mode, not only the system can not boot, and even the BIOS is not going to go, as if to detect a faulty hardware. Google has a lot, and there is no correct answer. Then I want to take all the unnecessary equipment removed, and then try again, the results suddenly found that this book, there is a small M2 hard disk on the motherboard! After unloading this M2, we successfully entered the bios!. Although the principle is not very clear, but the method is universal, that is, when the BIOS can not enter the inexplicable, remove all unnecessary equipment, with the smallest system to try! Kung Fu is a conscientious man.

A Dell Dell notebook BIOS Preparing to begin Setup problem