Possibly the chip isn't the problem. The Asus Maximus VI Extreme is a high end board designed with overclocking in mind, so perhaps the BIOS auto-adjustment for the core voltage wasn't programmed to work well with the stock cooler. I suggest you install an aftermarket cooler for it even if you're not ready to overclock it yet. 97c might not be enough to trigger automatic shutdown, but leaving it that hot for several minutes or more will most likely damage the chip.