I'm not sure if I bricked my mobo

[urpointis]

I was doing a routine cleaning I put the laptop back together it booted fine.got to Windows logon screen and all the sudden the screen the screen split into 4 horizontal sgments. I restarted it and got the same result. I reopened it and unplugged and replugged the monitor cord and still had the same resulth. i then booted into BIOS and set the BIOS to restore to default settings after a little bit the screen went black but it was still on (not completely black, like black of post bios) I got up from my chair and i accidently unplugged it. now when I boot it the screen is black there is no post but the hard drive is spinning and the fans are spinning. On initial boot th hdd light is lit but doesn't stay lit g73sw mainboard. Asus g73sw of course

 

[urpointis]

bought new mobo, it was bricked.