I bought SB i5 2300 with msi h67ma-e45 MB .
when I work with on-board graphic It has no problem . but when I connected videocard (GTS250) when I run 3d programs (games or windows 7 rating) every thing freezes and I doesn't enter the game .and I have to reset computer .
I thought it might be my VideoCard problem so I used another Video card (my brother's 9500GT) and this time even it couldn't start up windows .
what do u think problem is ?
I think it is MB PCI-Express slut problem .what do u say ?
(535W power , 2X2Gb 1333 ram)