This issue accrues maybe 1 time a day and when it happends i have to restart my pc.
My pc specs:
i5-3450 3.1 ghz
Sapphire HD 7870 2GB *bought a week ago*
8 RAM 1.333 ghz
S12 520W Bronze *bought a week ago*
ASUS P8H61-MLX
picture of the issue :
Tempetures :