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Optiplex 780 blinking green 3

I have a dell optiplex 780 that is all oem and clean. There is a blinking 3 on the front. I looked in the user manual and reseated the processor using new thermal paste and cleaning correctly. Self tested power supply passed. What is the next step before realizing processor is gone?

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RE: Optiplex 780 blinking green 3


Based on the information given the system fails to POST and we indicate a possible case of system board failure.

If there are any other queries just write back to us.


DELL-Jennifer K
Social Media and Community Professional
Manuals and Drivers

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