Technical Support HP Elitebook 840 g1

[user10018]

i have an elitebook 840 g1 which is blinking 3 times i have changed different rams, tried servicing the ram slots......tried re-flowing the processor and no soluion...
what might be the problem?
regards

 

[Ahmad Safari]

Hello
The motherboard should be checked in terms of diode resistance test so that there is no connection on the board.
If there was no connection:
The voltage measurement of different parts of the board should be done.

If the voltages are normal:
The adapter should be replaced.
Check the detect adapter path to IC SIO.
BIOS is programmed.
IC SIO should be replaced.
Rebuild the chipset.