Your processor has a TCase value of 67.9 °C; anything from the Tcase and below will be the expected temperature of the processor in normal use.
When the processor is stressed out meaning that you are running heavy processor applications that take control of the CPU or uses it at 100% the temperature will go beyond the Tcase. It can perfectly reach the 85 degrees and the processor will still be OK. The cooling fan is in charge to keep that temperature there.
If the processor temperature reaches 100 degrees or more, the system will shut down to prevent mayor damages and most probable it will not be possible to turn the computer back in until it cools down.
Intel® has a tool that will test every single component inside the processor and then will generate a report. I recommend you running the tool named Intel® Processor Diagnostics Tool. It can be downloaded at the following link: https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=19792&lang=eng&OSVersion=Windows%207%20%2864-bit%29*&DownloadType=Utilities%2C%20Tools%20and%20Examples
Something very important is to use the correct memory type on our processors otherwise the warranty won't cover the product. This specific processor supports memory speed of 800/1066 Mhz, DDR3, 1.5V.
Using memory out of specifications will decrease the lifetime of the processor and it could generate processor damage.