Dell optiplex diagnostic lights Tags: Light Optiplex Dell Motherboards Last response: May 28, 2010 12:53 PM in Motherboards Share Anonymous a b V Motherboard May 28, 2010 10:10:40 AM Hello, diagnostics lights on the optiplex 330 1 is flashing and 2 is off. what do this lights stand for More about : dell optiplex diagnostic lights faint545 May 28, 2010 12:53:36 PM I would recommend you go to Dells website to obtain the manual for your specific system. Here's the link: http://support.dell.com/support/topics/global.aspx/supp... Click on the choice to "Choose by service tag" and enter your service tag. Then download the manual for it. In the manual will be a section about diagnostics and diagnostic lights. Can't find your answer ? Ask ! Publish Related resources i have a dell optiplex 745. and the diagnostic light 1 stays on any ideas? solution Optiplex 330 - No boot, no beep, no diagnostic lights and Solid amber light solution Optiplex 780 - diagnostic lights problem. Forum dell 2400 diagnostic lights oooy solution 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 dimension c521 diagnostic lights 2 and 3 is on. Forum Dell dimension 8400 fault. No diagnostic lights are on Forum Dell diagnostic lights 2, 3, &4 Forum Dell Dimension 2400 Diagnostic lights Forum Dell XPS 600 diagnostic lights 123 Forum Diagnostic led lights on Dell GX 50 Forum Dell Dimension 8400 boot problems, A/B diagnostic lights y.. Forum Diagnostic Lights on Dell PCs Forum SolvedDell Optiplex Lights on before Switching on Forum Dell XPS 400 wont boot blinking amber power light and diagnostic light 1 only Forum Diagnostic light in Dell xps 420 Forum Diagnostic light in Dell xps 420 Forum Dell dim 8400 diagnostic b light amber on steady Forum SolvedDell OptiPlex 745 Solid Amber Light/CPU Fan Maxed Out solution More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !