Laptop starts but the screen remains black

Aineias

Honorable
Sep 29, 2012
1
0
10,510
Hello!
As the title says laptop starts up but there is nothing on screen...the weird thing is that sometimes it actually decides to show something like the pic below after the Compaq logo then it just froze
there.

5dul28


http://prntscr.com/5dul28

then after each reboot screen remained black.

what I tried:

1. Checked both rams they were ok [tried them on another laptop,same brand].
2. Connected the laptop to external monitor and pressed Fn+f4.
3. Removed battery..and pressed turn off button for 20 secs to remove any electricity remained.
4. Removed HDD ,CMOS battery and Dvd.

still nothing

Im thinking there is a problem with the gpu or cpu,what do you guys think,any help is appreciated.