My guess is that the default configuration this particular motherboard comes with allows overclocking the CPU when needed. Note that the IPDT then reported the test result as "Pass", and only issued a frequency warning (to see which you have to inspect the test log). After running the Intel Processor Diagnostic Tool I discovered that the CPU can go up to 5.1+ GHz. I was confident that the CPU was not overclocked, since I had left all BIOS settings at the default (Auto). Well, I managed to fix the problem by disabling some overclocking settings. How can I determine what causes this problem?ĮDIT: After updating my BIOS from F6 to F8 (latest), the issue has not been resolved. Needless to say, unless I use Power Options to restrict maximum usage to 90%, I end up having the computer crash occasionally, corrupting data and leading to loss of work (besides being very annoying). Compare to the 90% case: Temperature takes 2 seconds to reach 85C, and then about a minute to reach 95C. The crash is very fast: If I start from an idle temp of 35C, there is not enough time for CoreTemp to update the tray icon. The computer does a hard reset without any error message, automatically starts again, and Windows warns me about an unexpected shutdown.ĭoing the last experiment almost always results in a crash (at least 95% of the time). If I set the maximum power state to 100% and run Prime95, I immediately get a crash. The system appears to be stable indefinitely like this. This pushes all 8 threads to 100% usage (actually 90% because I've throttled it), and my CPU temperature goes to 95C with 123.5 W of power (CoreTemp 1.0 RC6). I am controlling the CPU load using Windows Advance Power Plan settings, by changing Maximum processor state under Processor power management.Īfter setting the maximum power state to 90%, I run Prime95 with the maximum heat torture test. My computer is crashing when the CPU is put under 100% load, but not when it put under 90% load.
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