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1 Rookie

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3 Posts

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April 23rd, 2025 19:19

Dell optiplex 3040 micro white and yellow light blinking

I have a dell optiplex 3040 micro and sometimes it's blinking white and yellow light when I connect the power adapter 

9 Legend

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12.6K Posts

April 25th, 2025 18:52

@BlackSpireB​ That indicates a TPM detection failure. Have you tried leaving the system connected to the power after you shut down? It is possible that when connected to power the system tries to boot and the TPM failure occurs whereas leaving the power connected allows the system to do a proper startup.

9 Legend

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12.6K Posts

April 24th, 2025 03:17

How many blinks are you seeing? The number of each does matter.

1 Rookie

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3 Posts

April 25th, 2025 15:37

@JOcean​ I'm seeing 1 yellow and 1 white

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April 28th, 2025 10:43

@JOcean​ thank you, I figured out that the problem was with the adapter because the adapters capacitor was down

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