My cpu has been overheating to the point of shutdown I've changed the thermal paste 3 times using AS5. I've made sure the heatsink is seated properly and the fan is spinning in the bios the temps can reach up to 70c if i just let it sit there for about 10 minutes.I'm using the stock fan and all stock bios settings
I used the grain of rice method and the cpu voltage in the bios is at 1.3v. And the heatsink barely budges when i wiggle it.No scratches either, nor anything blocking the fan.
You happen to have a thermal gun? If so measure the heatsink's temperatures or any exposed part of the processor, it wont give you the processor temperatures but something around it. Or just touch the heatsink with your finger (not into the fan) and feel if it's really that hot. Also do you know the RPM the fan is spinning at?
It could be a defective motherboard temperature sensor since you:
a) Applied the proper amount of thermal paste (rice grain size)
b) Made sure the heatsink is secure
c)The fan is connected and running
d) No scratches on the heatsink
e) Made sure no obstructions to the fan
Technically, with all those done above, you should be expecting normal temperatures.
i agree, using more than one fan will help, u can also get a coolermaster 212 evo for under 35$, and check if you have the latest bios somethimes can give wrong temperature, also its possible ur thermal sensor on ur motherboard is defective, so if after doing all the above still show high temps id contact ur motherboard company to get an rma possibly if its causing u further problems
+1^ to both posters, extra exhaust fans and intakes will help as well. If you can get the fans, put two fans as exhaust on the top of the case, you can also put a fan on the bottom of the case as an intake.