The Intel Alder Lake processors of the Core i3 and Core i5 series already turned out to be very attractive based on the ratio of performance and price compared to AMD Ryzen CPUs, and now another argument has been found in favor of these processors, and a weighty one: as it turned out, even “non-overclockable” models without index K can be overclocked. And in the case of the potential hit Core i5-12400, overclocking is fully justified, since you can count on a free performance increase of about a third. True, for this, at hand, you need to have a suitable motherboard.
The well-known overclocker Der8auer reported that ordinary 65-watt Alder Lake without the K index can be overclocked. He noticed that Asus motherboards based on the Z690 chipset (in particular, ROG Maximus and APEX) have the ability to change the BCLK frequency. Moreover, it works only in conjunction with a conventional processor, without the K index in the title.
According to the overclocker, the BCLK OC function is implemented in Asus Z690 APEX and Z690 HERO motherboards with BIOS version 0811. But, for example, it does not work in the same ROG Strix Z690-I. Der8auer suggests that BCLK OC is currently (and will be available) only on top-of-the-line Z690 models with a separate (external) clock generator.
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