CQ56 Dead

[emachinese625]

Hi. Today i was using normally my Compaq Presario CQ56-116SO. I was watching youtube, and then without reason, screen goed white. I shutdown the PC and now when i try to start it only Caps Lock keeps blinking all the time, and in HP sites there doesn't read anything about what it means when it is blinking all the time, they just tell if it is blinkin 1-8 times, but this is blinking all the time. So what i have to do? I tried Hard Reset, and no result....

 

[HPrometheus]

Have you checked to make sure your RAM is seated properly in the bottom?