PC black screening and light next to RAM blinks

[andrew60212]

Hello, I am haveing this problem of my PC will black screen but the fans and stuff will keep running. A red light beside the RAM blinks please help .
I have a Nvidia gtx 470 and i dont know how to find out what my motherboard is soz please tell, 4x2gb g-Skill RAM.

 

[Bejusek]

Motherboard model and maker logo are usually printed somewhere on the board. Like here: