I buy a new pc ( http://www.mediadot.ro/wishlist/4935/ ) and the problemis that i only use 4 Gb of Ram becouse when I put all the 8 Gb it will freeze at loading screen in OS. When i enter in safe mode it freezes at crcdisk.sys. I run Vista Ultimate X64. I tried to chande the OS, I test all my Rams and there was no problem. Can someone help me please? I found some guys on this forum with the same problem but i'm no good at overclocking and i have no money left to buy another motherboard or something so i hope i'll finaly solve my problem here. I apologies for my bag english and i hope there is someone who can help me. I sure would be in debt to the one who could help me solve this enigma. Thank you for your consideration.