PC Freeze with a buzzing noise

[Rajiv Soler]

I ve been having this issue lately after fitting in a new processor and a GPU , It just crashes at random times and sometimes it works like a charm .I ran the FunMark test for 16 mins And the results are :
Min temp : 39 degree c
Max temp : 88 degree c
Avg FPS : 43
My specs :-
Processoor AMD Fx6300 3.5Ghz
GPU : MSI GTX 560ti 2 Gb
Ram : 4GB DDR3
Motherboard : Asus m5a78l-m lx v2

appreciate your help in advance

 

[Rajiv Soler]

Here is my DM log zip file