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July 19th, 2025 19:36
Latitude 7480: monitor does not turn on!
Dear Dell tech team,
the monitor of my laptop Dell Latitude 7480 does not turn on. I can see the same light pattern appear: two times orange and four times white light. Can you please help me to solve my problem or give me some advice?
Thank you.
Best regards!
Tinkara
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ejn63
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28.6K Posts
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July 19th, 2025 20:02
This is a memory failure error. Start by unplugging the system and disconnecting the main battery from the system board. Remove and reinstall the memory module(s). Reassemble and test.
If the same thing happens, try one memory module at a time in each socket. If one module fails in both sockets, replace it. If both modules fail in one socket but not the other, you will need to either live with a single module or replace the mainboard.