Dell M4600 owner manual Error Description, Diagnostic LED

	Diagnostic LED		Error Description
	Solid	Solid	The microcontroller is handing control of the
Blinking			system to the processor. This code persists if no
			processor is detected.
Solid	Blinking	Solid	The memory has encountered an error.
Blinking	Blinking	Blinking	A system board component is faulty.
Blinking	Blinking	Solid	The video card is preventing the system from
			completing POST.
Blinking	Blinking	Off	The keyboard is preventing the system from
			completing POST.
Blinking	Off	Blinking	The USB controller encountered a problem during
			initialization.
Solid	Blinking	Blinking	No SODIMMs are installed.
Blinking	Solid	Blinking	The LCD encountered a problem during
			initialization.
Off	Blinking	Blinking	The modem is preventing the system from
			completing POST.

139