In the memory stick specs section it reads ''Compatible with Intel LGA1155/LGA1156 and AMD AM3/Llano/AM3+ platforms'' mine is LGA755, do I have to worry?
No, your RAM is DDR3 1.5V 1333mhz that's all you need to know. What you said it implies that this RAM is optimized for LGA 1155/1156 not that it works only for these .