Core i5-4690K with H81-I PLUS board for overclocking
Core i5-4690K with H81-I PLUS board for overclocking
Can the CPU be overclocked using the motherboard referenced? I watched a YouTube video about someone overclocking a Pentium G3258 on a similar H81 chipset board and wanted to know if it’s feasible. If yes, I also have more questions:
1) Would a quality CPU cooler be necessary?
2) What voltage and core clock settings would be required for stable performance of an i5?
3) How noticeable would the improvements be in gaming?
The general response is NO. This motherboard is only suitable for overclocking the G3258 chip. The previous announcement, made in 2014 when the chips were released, is similar to the recent updates about overclocking non-K Skylakes or non-Z motherboards. In both instances, Intel modified the microcode, adjusted the operating system settings, and updated the BIOS, all of which blocked such changes. If you own the correct board, use the original BIOS and OS version, you might still be able to proceed, but you would be locked into that configuration and unable to upgrade without losing this feature. In short, it’s not possible under these conditions.
Yes you would need a good air cooler and yes you would need to up the Vcore from stock above 4.2GHz or so (see my sig). Every chip is different so there is no exact setting. You may need more, you may need less voltage than others at the same overclock.
And game wise, not very much difference, especially at higher resolutions like 1440p with ultra quality and AA settings as the load is more on the GPU. I see no difference on my 4690K at 4.7GHz vs. 3.9GHz (on all four cores) in Witcher 3 for example. But other games like BF4, Project Cars, and Grid Autosport, there is a slight increase by a few FPS....not worth it though IMO.
It seems the only CPU that could be overclocked on the H81 boards was the G3258.
barto :
If i'm not wrong, the sole CPU that could be overclocked on the H81 boards was the G3258.
http://forums.anandtech.com/showthread.php?t=2389948
It seems that's not the case.
"ASUS has revealed that its H97, H87, B85 and H81 Series boards support overclocking for the latest Intel Pentium Anniversary Edition processor (G3258), 4th-gen Intel Core K Series ('Haswell') and the new 4th-gen Intel Core K Series ('Haswell Refresh'). Pairing the Pentium Anniversary Edition processor with non-Z chipsets offers the optimal solution for mainstream overclocking, providing excellent value and strong performance."
http://www.techpowerup.com/202196/asus-e...oards.html
Yes, you would need a solid air cooler and possibly raise the Vcore above 4.2GHz depending on your setup (see my notes). Each chip behaves differently, so there’s no fixed setting. You might need more or less voltage compared to others at the same overclock. From a game perspective, the difference is minimal, particularly at higher resolutions like 1440p with ultra quality and AA settings, where the GPU handles more load. I haven’t noticed any significant change on my 4690K at 4.7GHz versus 3.9GHz in Witcher 3, though. For a 4690K, it might be wise to benchmark a few games while they’re at stock speed and then overclock slightly until stability is confirmed—then decide whether to keep it as is.
The general response is NO. This motherboard is designed solely for overclocking the G3258 only. The recent announcement, made in 2014 when the chips were released, mirrors the earlier push to overclock non-K Skylakes or non-Z motherboards. In both instances, Intel altered the microcode, tweaked the operating system, and modified the BIOS, all aimed at stopping such attempts. Running the correct board with compatible BIOS and OS still allows limited overclocking, but it locks you into that configuration and prevents upgrades without losing this feature. In short, it’s practically unfeasible. The only viable adjustment is a minor BCLK change, which might boost performance slightly under certain conditions.