My Current PC config is : Core 2 Duo E6550 2.33GHz, Intel DG33, Gigabyte 4670 1GB, 4GB DDR2, Thermaltake 420W. Now I want to buy either GT550ti or HD 7770. Is there any chance that my current motherboard or processor may conflict with that GPU (GT550ti or HD 7770). One of my colleague said that after plugging HD 6950 he got a lot of BSOD ( 775 socket CPU ) then he changed to 1175 socket. Now its working fine for him.