Dell Diagnostic Error Codes

Blinking Pattern		Possible Problem	Problem Description
Amber	White
2	1	CPU	CPU failure
2	2	BIOS ROM failure	System board failure (included BIOS corruption or ROM error)
2	3	Memory	No memory/ RAM detected
2	4	Memory	Memory/ RAM failure
2	5	Memory	Invalid memory installed
2	6	Chipset	System board/ Chipset error
2	7	LCD	LCD failure
3	1	RTC power failure	CMOS battery failure
3	2	PCI/ Video	PCI or Video card/ chip failure
3	3	BIOS recovery 1	Recovery image not found
3	4	BIOS recovery 2	Recovery image found but invalid