Computers: how to distinguish between CPU or motherboard is not working?

diannao computer can not open machine is not a bad light is a most simple way.
your CPU to change Also a look at the computer ..if that is all right by the main version of the CPU board is not a good-for-arbitrary line on the? Touch North and South Bridges motherboard chip temperature are not big issues, cpu For the same reason.Truest way “ “ CPU fan operation to prove it is normal power supply motherboard, the CPU would be considered a factor,

if the CPU fan can not operate normally Issue 2 board during any one of those bad points are the computer does not shine .
can distinguish between:cpu removed, mounted on another computer, if the point of light on a good note cpu, cpu does not shine that does not work.
theory, the board can be removed, But the board down too much trouble, of course, is simple cpu more.
General:cpu, if not burned, may not be bad, cpu bad it is not easy, the problem is that most of the motherboard.Motherboard bad in general Can look at it this way:visual capacitance on drum kits, solder joint cracks, hidden fault Huaping have integrated graphics, memory slot golden finger fracture, bad visual processor pin on the fracture surface oxide, copper cover cracks, PCB deformation , Is the operating system invisible fault accident death (bad motherboard into the bios, stopped a 10-minute board is also the problem of Death), if the light is not on the minimum system needs to be replaced to determine the