• Dell Error Lights 1 2 3

    Troubleshooting No POST & No Video issuesFront Panel Lights – Optiplex 755 , 960, 980 – Fargo Wiki – Front Panel Lights – Optiplex 755, 960, 980 Edit Classic editor; History; Talk 0. 156 pages on this wiki. … The diagnostic lights are not lit after the computer successfully boots to the operating system. … contact Dell (see Contacting Dell).

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    We have a Dell OptiPlex 745 desktop system which will often fail to boot after a restart. The diagnostic lights show a 1-2-3 pattern which has no definitive solution in the manual.

    Dell™ OptiPlex™ 760 Service Manual Tools Dell Diagnostics … your computer has four lights labeled 1, 2, 3, and 4 on the front panel. … Contact Dell (see Contacting Dell). If the power supply diagnostic light next to the switch does not illuminate, …

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    … the system will give two short beeps and display lights 1-2-3 solid green, 4 is off. Video does not display. … Dell’s diagnostics guide suggests “Other failure” for 1-2-3 and to check that all cables are … i have a dell optiplex 745. and the diagnostic light 1 stays on any …

    Dell Precision ; Latitude ; OptiPlex; Minimum Supported System Requirements: Microsoft Windows XP SP3, Windows Vista or Windows 7®, Windows 8* Microsoft Internet Explorer, Google Chrome, or Mozilla Firefox required. … Learn about Dell’s online diagnostic tool.

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    I am experiencing the same problem with my Dell XPS 420. Until recently it worked fine, but now if I shut it down completely, it will not restart and displays Diagnostic Lights 1, 2, and 3.