I have just moved a working hard drive , including the motherboard and the complete innards from one pc case to another larger case. Now it still works ok but when I need to reset the system for whatever reason it just shuts down. I have placed all the panel connectors in the same place as before. I have double checked everything with the manual. I am running Windows 7 Pro and using an Asus Z87 pro /Gen 3 motherboard.