You're exceeding Throttle temperature above 100°C. The only way that's possible is if CPU Thermal Protection is disabled in BIOS, which should
never be done. Check BIOS to make sure this extremely critical feature is not disabled.
Since you mentioned P95 v26.6 which is a valid 100% workload and doesn't have AVX, then AVX can't be causing the problem. Later P95 versions with AVX/2 can push 130% workload. CineBench R15 peeks at about 90% workload. Also, your Vcore is well within the maximum recommended value for 14 nanometer processors, which is 1.4 volts, so that's not the problem either.
Keep in mind that P95 v26.6 Blend changes FFT size at 16 minutes from memory bound to CPU bound, so it's normal for Core temperatures to increase at that point. AIDA64 has 4 CPU related stress test selections which have
15 possible combinations that yield
15 different Core temperatures. That's a lot of variables. The individual CPU test is only about 70% workload, whereas the CPU/FPU test combination is about 100% workload.
Most utilities have partial,
fluctuating workloads with
fluctuating Core temperatures. “Stress” tests vary widely and can be characterized into two categories;
stability tests which are
fluctuating workloads, and
thermal tests which are
steady workloads. Prime95 Small FFT's
(without AVX) is ideally suited for testing thermal performance, because it conforms to Intel's Datasheets as a
steady 100% workload with
steady Core temperatures. No other utility can so closely replicate Intel's thermal test workload.
Utilities that don't
overload or
underload your processor will give you a valid thermal baseline. Here’s a comparison of utilities grouped as
thermal and
stability tests according to % of TDP, averaged across six processor Generations at stock settings rounded to the nearest 5%:
Although these tests range from
70% to 130% TDP workload, Windows Task Manager interprets every test as
100% CPU Utilization, which is processor resource activity,
not actual workload.
Core temperatures respond directly to power consumption (Watts), which is driven by workload. Prime95 Small FFT’s
(without AVX) provides a
steady 100% TDP workload.
Just for comparison, you might want to run CPU-Z > Bench > Stress CPU, which is a steady 80% workload. However, I suspect that your H115i is failing, which is all too common. Fortunately, Corsair has a 5 year warranty, so the option of an RMA replacement is available.
In the interim, if you have a decent air cooler, it can help you troubleshoot and rule out the variables.
And just so we know, what is your ambient temperature?
CT