Compaq Presario CQ40 Hardware Problem

Question

i have this Compaq Presario CQ40 Laptop and when i turned on the machine, it shows no display, it seems no interaction with the monitor. And there's a led that continuously blinking 4 times then pause then 4 times then pause..

any help please..

what would be the problem on my laptop..

Answer 1

Something is wrong with your graphics card / subsystem:

HP Support Blank Screen Error Code