Even after resetting the CMOS, overclocking remains ineffective.
Even after resetting the CMOS, overclocking remains ineffective.
I finally acquired a decent cooler, the 212 EVO. I performed an overclock on my i5 4690K, trying a speed of 4.5GHz @ 1.25V. After running CPU-Z stress tests for several hours to check stability, it crashed. I restarted and increased the voltage to 1.265V, which initially seemed promising but then showed up as 3.5GHz in both CPU-Z and Task Manager. I shut down and adjusted BIOS settings, but nothing changed. I cleared CMOS and restarted normally without overclocking. When I accessed CPU-Z again, it displayed a multiplier range of 8 to 45.
Despite having Turbo Boost turned on in BIOS, it was shown as disabled in RealTemp. After adjusting the configuration there, everything functioned properly.