I have 550 watts cooler master old supply or i have r9380 4gb gpu when am do normal task such as browsing downloading etc psu fan 120mm big fan spin normal still little loud but when am play games such as gta v get cry 4 etc psu fan begin spin so fast and loud is that a problem??any danger?or it's abnormal? +12v stays in 11.54 11.74 and 11.96 minimum 11.54