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 | E-mail me updates | Report abuse Register or log in to remove 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 | Report abuse technocretin October 8, 2010 7:11:50 AM Best answer selected by technocretin. | Report abuse 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 | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Components>Dell numbered diagnostic leds> Related ressources: ForumDiagnostic led lights on Dell GX 50 ForumDell Optiplex gx520 motherboard upgrade - new motherboard wont boot. ForumDiagnostic Lights on Dell PCs ForumHow do you create the Dell diagnostic partition and load i.. ForumXps gen 4all diagnostic lights green but not booting up ForumHi,I have a Dell Inspiron 518, won\'t boot, blue led come on & off over & ForumUnusually slow UEFI Boot Time ForumDell has Core 2 ready to go and working well in SLI ForumDell Dimension 8400 boot problems, A/B diagnostic lights y.. ForumAuxiliary power led is amber on my dell Optiplex 745 is amber and it wont boot ForumCan't access BIOS on Dell Dimension E521 after BIOS update ForumDell E1505 won't complete POST ForumNew Build Problem - Phase Leds on Gigabyte GA-P67A-UD3R-B3 ForumHDD LEDS /Power button Without Manual? ForumDell XPS 400 random shutdowns ForumWhere can I find a good mechanical keyboard? Forum[Solved] Dell Inspiron Desktop 580s vs Dell Inspiron Desktop 560 Forum[Solved] Dell precision 670 ForumTo make my Dell Studio Xps 1645 better than factory's best ForumDell laptop More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !