thanks for your response.
sorry this system is different specs to what is listed in my sig.
specs for the system that is having the BSOD
Gigabyte GA-MA790XT-UD4P 790X Socket AM3 DDR3
Corsair 650W TX Series PSU
Western Digital WD5000AAKS 500GB
AMD Phenom II X4 955 Black Edition 3.2 GHz
Corsair XMS3 TwinX 4GB (2x2GB) DDR3 PC3-10666C9 1333MHz Dual Channel Kit
Gigabyte Nvidia GTX260
Sony AD-5240S 24x DVD±RW DL Internal SATA Black Bare Drive
I will update the Realtek drivers
Does it look like its a memory issue?