Not sure what setting has changed on my GMTEK K8+, but my CORE Boost is now not exceeding 3.7Ghz, even in a single CORE 'bench or stress test'. I don't recall changing any BIOS settings.. POWER is set to 'PERFORMANCE'. When I originally purchased it, & bench tested it with 3DMark, CineBench & GeekBench_7, it was getting much higher scores & CORE Clock frequency than it is currently.
Windows system 'CMD' indicates Power is set to 'Balanced' as does HWINFO64 (50% Balanced). There is no Thermal, Current or Power throttling on the CPU (via HWINFO64) - temps, even during 'bench' or 'Stress' tests don't exceed 50C.
Memory & iGPU temps are low. iGPU (780M) bench test maxes out @ 2700 Mhz - no Thermal or Power Throttle, just CURRENT.
Windows System Power Plan is = BALANCED (I can't set it higher) PPM is set to 5% = Minimum Processor state. 100% = Maximum Processor State.
I've tested it with Passmark 'Burn Test_11' complete range of 'bench & stability' tests.. which it passed. Max power draw on extreme test was 71KW, no thermal, power or current THROTTLING. Max Core Clocks were just above 3670Mhz & iGPU 2700Mhz. Core Temps never exceeded 74C - CPU fan was about 2800rpm.
K8+NUC = Operating System: Microsoft Windows 11 Professional (x64) Build 26200.9168 (25H2)
BIOS Version: NucBox K8 Plus 1.01 BIOS Release Date: 10/12/2024
System BIOS Version: 5.29
64GB Kingston HyperX DDR5 5600 / 2x Samsung 990Pro_1TB (2nd party heatsink) & 2TB version (Samsung heatsink). System fan replaced with 5V Noctua premium NF-A12x25 PWM, so very cool running.
Any ideas folks?