Yesterday I built a PC with a Asrock 880G Extreme 3 motherboard a AMD Phenom II 550 black edition and a coolmaster hyper TX3 cooler and immediately unlocked 2 extra cores in the motherboard settings. Today I tried overclocking to 3.8GHz which looked stable but the temperature started to reach 60C so I went back to 3.6GHz which ran fine with 1.45V @ 44C when running the stability test in the AMD overdrive utility but when I ran Prime95 the temp. went to 59C I dropped the voltage in increments back to 1.4 (1.875 is not stable) and the highest temp when running Prime95 is now 53C max is this OK for regular use? If not what temp should I be aiming for?