Dell numbered diagnostic leds Tags: Boot Dell Components Last response: October 8, 2010 7:14 AM in Components Share technocretin September 23, 2010 9:36:02 AM Hello, got an old dell which will not boot, there are leds on back numbered1234, 1 and 3 are lit 2 and 4 are not is there a chart to tell me what the problem is many thanks More about : dell numbered diagnostic leds 1haplo September 23, 2010 11:40:46 AM What model do you have? I have a XPS400 and 1&3 is a memory error. Just google dell diagnostic lights with the model number and it should tell you the codes. I have a Dell XPS 400 and When I searched for the lights I found it in the troubleshooting documentation. Here is the link for the XPS 400. http://support.dell.com/support/edocs/systems/xps400/sm... Dell may use the same codes for all computer But I am not sure. Hope this helps m 0 l technocretin October 8, 2010 7:11:50 AM Best answer selected by technocretin. m 0 l Can't find your answer ? Ask ! Get the answer technocretin October 8, 2010 7:14:30 AM both answers were helpful and it was the memory module that had come unseated, now works fine thanks to both Technocretin m 0 l Can't find your answer ? Ask ! Publish Related resources Dell Precision 390 No boot screen no diagnostic LEDs. Forum Diagnostic led lights on Dell GX 50 Forum DP67BG looping - do the diagnostic LEDs tell the story? Forum MSI GPU diagnostic LEDs? Forum Dell Precision T3500 diagnostic code Forum Four red LEDs on diagnostic Forum Dell diagnostic partition to ssd Forum dell 2400 diagnostic lights oooy Forum i have a dell optiplex 745. and the diagnostic light 1 stays on any ideas? Forum Dell FX160 power button flashing YELLOW no further response. No diagnostic lights. 12VDC ok. Forum Dell Dimension 9200 won't start - diagnostic lights 2 and 4 Forum Dell XPS 400 wont boot blinking amber power light and diagnostic light 1 only Forum Return coad 7 in diagnostic in dell computers Forum No diagnostic utility partition found dell d-600 Forum Dell dimension c521 diagnostic lights 2 and 3 is on. Forum Dell dimension 8400 fault. No diagnostic lights are on Forum Diagnostic boot selected on a DELL Latitude D620 Forum DELL Laptop Diagnostic Errors Forum No Diagnostic Utility Partition Identified - Dell M43MT but with RAID Forum Dell diagnostic lights 2, 3, &4 Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !