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- Notebook Boot and Lockup
- Caps lock & Num lock (F12) blink white 8 times. Black screen...

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04-20-2023 03:04 PM
Product: HP EliteBook 840 G3 Base Model Notebook PC
For the first time today, my laptop doesn't seem to want to play ball.
Black screen, no power, when I try to power on, the caps lock and f12 blink a white light 8 times.
I've tried the basics, removing battery, removing ram etc but nothing seems to work.
Also tried to hold windows key and v/b to run BIOS but nothing happening!
Any ideas what I could try next? Not sure if a ram issues, battery issue or something totally different!
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