This makes Devils Canyon very power demanding and with high voltages, again comes heat that you will need to battle. Whatever we tried, we have not been able to pass 4800 MHz as 4900 MHz even with 1.45 Volts crashes. We actually needed to pump 1.40 Volts into the CPU to get it stable enough at 4800 MHz. See, with a Core i7-4770K we can leave our BIOS voltage settings at auto, weirdly enough Devils Canyon 4790K was harder to overclock compared to the 4770K.

Basically in the BIOS we flick the multiplier towards 48, activated the XMP memory profile (2133 MHz) and we were up and running, but not stable. Overclocking with the Z97 on an ASUS motherboard typically is easy.

Make sure your processor is properly cooled with enthusiast grade heatpipe cooling or liquid coolingīelow an overview of our BIOS overclock settings.Increase CPU voltage, though setting AUTO might work fine, we think 1.2~1.250V on this motherboard is a sweet spot if you stay under 4500 MHz.With a 4770K change Turbo multiplier to 44 initially and gradually work your way upwards.If present, increase the TDP limit of your processor to 200~250 Watts.With a proper motherboard you can now set a multiplier per core.ĭevils Canyon should offer a better thermal package, so that combined with more power capacitors and that unlocked we started overclocking. But please do get a 30 USD more expensive K version and in the BIOS you'll have much better tweaking options. The new technology however has an embedded GPU / video processor merged into the very same processor die running over the same bus sharing the same 元 cache memory, things get increasingly complicated in matters of tweaking. So if you were able to apply a fictive 175 MHz on your base clock, you could multiply it with the limited 25 multiplier. That base clock was capable of going so much higher, 150, 186 and when tweaked right, even over 200 MHz. With Nehalem/Clarkdale (last generation Core i3/i5/i7) you pretty much take your base clock of 133 MHz and apply say a default multiplier of 25, that would be your 3.33 GHz processor. Why K versions you ask? Well, the default non-K processors will be much harder to overclock.

The downside, Intel charges you extra cash for it these days. If you are planning to do some overclocking with a Haswell based processor, you are so much better off with a K model processor.

Intel extreme tuning utility 4790k