Hi all.
Please can help me.
After external reprograming BIOS and EC, notebook not work.
After connect power cord, keyboard backlight ON, power LED ON, all others LED is ON and nothing on display.
Fan is full speed.
CapsLock LED flash 5 times (General system board failure)
If I long push power button notebook is normal off.
I dont know where is problem.
This problem I have only on HP 840 G3.