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#11
Yes it most cases it is.
However, mistakes can be made in the build process which would mean that the cooler is not correctly seated with the CPU, or there is not enough Thermalpaste / too much thermal paste for the contact to not transfer the heat away effectively.
(I have done this in previous builds, it can happen)
Also, this seems very related to your issue -- Asus M5A97 LE R2.0 Freezing Screen [Solved] - Asus - Motherboards or is it a coincidence?
Solution from that site --Try raising the DRAM voltage + 0.05, and the CPU/NB voltage to 1.18