i have a E8400 cpu and i have overclocked it to 3.80 ghz the only problem im a bit worried about the temperatures

running orthos for 2 hours
core temp i get :
core 0: 46 degreese
core 1:51 degreese

with real temp:

core 0: 42degreese
core 1:46 degreese

running core damage for 10 mins i get:

core temp

core 0: 65degreese
core 1:67 degreese

Real temp

core 0: 61degreese
core 1:63 degreese

With occt tested and its stable for 2 hours temps are:

core 0: 53 degreese
core 1:58 degreese

so if anybody can help me out here and tell wether these temperatures are safe and far from its maximum , thank you in advanced