Bsod when running 4gb ram with graphics card

packard bell x2416
4gb ram (2x2gb)
geforce 210
windows 7 64x ultimate

recently installed a cheap geforce 210 to replace integrated graphics.
got bsod on first boot, so i removed 2 ram stick, and it worked.
updated drivers for graphics card and it works fine.
however, when i put the 2gb ram back in, bsod.
so at the moment i am just running 2gb ram and the graphics card.
i have removed all the integrated graphics drivers, even though i assume they will disable when new graphics card went it.
my bios is set to pci-e load up.
i have used WinDbg to analyse .dmp file, however i dont really know what to look for.
any help would be really appreciated! this is really annoying me.

When i do use the WinDbg i get

Your debugger is not using the correct symbols ***
*** ***
*** In order for this command to work properly, your symbol path ***
*** must point to .pdb files that have full type information.

Probably caused by Ntfs.sys ( Ntfs+ab000 )

Now the problem has changed, by installing sp1, the bsod has changed to system service exception?

Please post the following report before we proceed Windows Genuine and Activation Issue Posting Instructions

Your attachment indicate that you're using the leaked Lenovo SLIC table, your installation may be counterfeit.