Originally Posted by gilles25
Is the TCase temperature which is specified on the Intel product page (https://ark.intel.com/content/www/de...-3-90-ghz.html
) the temperature which is shown in my BIOS? Or how can I measure the TCase temperature? Is there any general "guideline"-for the maximum core temperature of a CPU?
As far as I know, there's no way to get the Tcase temperature. There's no sensor built into the CPU that measures it.
The CPU has sensors to measure the core temperatures. For the core temperatures, the limit for your 3770K is 105°C if I remember right. If you hit that temperature, the CPU will "throttle" and disable Turbo Boost and run at base clocks (3.5 GHz). Then next, if throttling doesn't help, if it hits 125°C it will shut down and crash the PC.
The way I understood things is, the Tcase temperature is a bit theoretical. Even if the cores are hitting their crazy high 105°C limit, the outside of the CPU will stay below that Tcase temperature limit. The sensors for the cores are in some spot that can get super hot, but the rest of the chip will always be colder.
I have a system with a 3570K here. In my experience, while using prime95 for testing your overclock settings, a good core temperature to target is 85°C. Things seemed to get strange after 85°C.
Another thing I remember from my 3570K system is: check for "WHEA-Logger" events in the Windows Event Viewer in the "Administrative Events" section. My 3570K can pass many hours of prime95 testing while later still randomly crashing (fully or just programs). The "WHEA" events are a good sign for that happening. Looking out for WHEA events was actually better for getting the system stable compared to using any test I could find.