crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934241:0crwdne2934241:0 Haroon

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No display, with fan running at top speed

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When I start or plug inthe laptop the lights turn on with no display. After that the CAPS and NUMS lock blinks exactly 5 time and then the fan runs at top speed. I have tried the bios reupdate, cleaned the rams and SSD. I even tried to change these and removed the cell on the mother board with 30 secs of pressing power button

crwdns2866306:0crwdne2866306:0:

HP EliteBook 840 G3

crwdns2915684:0crwdne2915684:0:

open