I5 2500k struggles to boost beyond 5 GHz and crashes in Windows.
I5 2500k struggles to boost beyond 5 GHz and crashes in Windows.
based on that reasoning, my i3 540 shouldn't have given up at 1.85v while I was testing 5.2ghz bios runs. Idle temps were around 70c, but if it had been at 50c it likely wouldn't have failed. CPUs usually begin losing performance above 2v, yet these chips keep working at higher voltages. This is mainly about heat management—lower temps reduce power use and leakage, which helps stability. Too much heat, though, can cause instability or scaling issues depending on your cooling setup. Higher voltages also increase power consumption slightly, but the difference isn't huge. Some laptops use lower voltages to push higher temperatures safely, which is why they can reach 105c TJmax while still running.
What is your core frequency? For stability, match the same clock to the uncore as well. For instance, if the default turbo is 3.5, and your uncore is 3.0GHz, you’d adjust core to 5GHz and uncore to 4.5GHz. A 5GHz setting for 2500k is quite high, but I’m not sure. I might have used 4.8GHz instead because it required less voltage. Also, think about the LLC level—you can run the default calibration without issues, and if you’ve overclocked RAM or enabled XMP, start with auto speeds to stabilize before changing RAM speed.
The uncore frequency is not called in the Asus BIOS. It is typically referred to as the "core clock" or "base clock" depending on the specific system documentation.
I was trying to combine different details. It seems uncore can't be enabled on the Sandy Bridge chip. However, you can adjust the offset voltage for vcore and assign unique turbo values per core to maintain normal CPU performance at higher speeds. Activating the Ai overclock tuner in manual mode is also recommended. Letting other voltages stay at their defaults works well too, since the PLL often increases its value when using higher multipliers. For more info, refer to the manual: https://dlcdnets.asus.com/pub/ASUS/mb/LG...el=P8Z68-V PRO/GEN3
Adjusted it to regular or your preferred setting. Regular keeps things running smoothly and lets the CPU operate at standard speeds. You may need to turn on extra features for it to function properly. Also, increase the power limit in CPU settings. Refer to manual page 3-9 for details. https://dlcdnets.asus.com/pub/ASUS/mb/LG...el=P8Z68-V PRO/GEN3 As previously mentioned, setting PLL to its stock value is advisable. Also keep in mind the other chipset voltages, such as VCCIO (memory controller).
Alright, I get it. No problem at all. Just let me know what you need next.