Why is my laptop not turning on?
My laptop shows 3 slow blinks and 5 fast blinks and will not display anything. If this is a problem with the processor, what are my options?
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The "3.5 code" or 3 slow blinks and 5 fast blinks indicates a potential CPU/motherboard failure.
Probably best to remove hard drive, for your data, and send laptop to HP for repair.
This page may help:
https://support.hp.com/us-en/document/is...
This video shows how to replace components. Unfortunately, these days CPU's are usually soldered in place.
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