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HP Recommended
Hp Elitebook 840 G3
Microsoft Windows 11

All of a sudden, when i turn on my laptop, the power, wifi and sound led is indicated, the led for storage comes up for two seconds and goes off, my screen is lifeless and i can hear the CPU fan blow aggressively. I have tried changing RAM slots, changing RAM, removing and putting back the CMOS and SSD, leaving the power on AC only, removing and putting back the battery and none work. Some technicians say its the motherboard but i want to exhaust all possible options first so im thinking its something to do with bios recovery but i can be wrong though please i need some assistance

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