Hi,
After many freeze/lock ups and plenty online searches, it was apparent to me that these ASUS G73JW Gaming laptops, such as mine, were notorious for having short thermal paste lifespan on the GPU and CPU. This has caused many issues for many owners. Being that I am capable of building tower PC's, I finally took the plunge and dismantled my G73JW all the way down to the CPU and GPU. I cleaned up the old thermal paste, which BTW, did not look good. After installing new thermal paste and resetting the CPU and GPU, and putting the laptop all back together, everything is running just great. I would not recommend this for the faint of heart, but if you have computer build knowledge, it is certainly doable. Just take your time and be extremely careful of the connections during the dismantle and reassemble process. I know we all like easy remedies when we have issues, but to properly fix these types of laptops, a full dismantle seems to be the only true cure. There are videos online that show the dismantle/reassemble process.