Question Help needed with display problem

[Beast378]

So after i got the new MSI g41m p28,its working fine,one day no display so i pull off the 4gb ram ,only left 2gb of ram,the 4gb one i return to the seller and he give me a new one.while waiting i use only 2gb of ram,first day didnt work,next 2 day surprisingly work without prob,yesterday my ram arrived,i unbox then put It in,suddenly no display,tool It off only left 2gb ram,still no display,Can someone help me
Specs
Q6600 2.4GHZ B0
PC10600 6GB Ram DDR3
GeForce GTX 650 Ti 1GB DDR5
Sorry for my bad English I hope you understand it

 

[Beast378]

Help please,thank you for helping i appreciate it

 

[Beast378]

Can someone help