Adaptive vcore not working

ChrisC001 · 21 Mar 2018 at 13:14

Hi all,

Very new to overclocking but having purchased a new rig from OCuk I thought i'd have a bash at getting the best out of my rig.

I have an i7770k on a Gigabyte x270 Ultra Gaming mobo and having done a bit of research was following the following guide.

https://view.joomag.com/gigabyte-z2...series-overclocking-guide/0767815001483933769

I've tried a basic overclock to 4.8GhZ as per this guide, however, I have noticed some strange vcore returns after this and as such haven't tried to drop the vcore to lower amounts to get the lowest possible setting as yet.

core speed is dropped according to cpu-z so I am guessing turbo mode is active when idle, however, core voltage is displaying at 1.344-1.356v at a core speed of 800mhz (idle) and 1.40 when under load, despite me setting vcore at 1.35 in bios. Temperatures also have spiked to 91c at times during stress testing.

As I am new, I am not understanding why the vcore is exceeding what I have set in the bios and causing the temp spikes nor do I get why the vcore isn't dropping substantially when idle. Could a guru please have a look at the guide and let me know what is wrong?

thanks in advance.

Bugbait · 21 Mar 2018 at 16:02

Sorry, don't feel like enabling Flash to view the video. Most overclocking guides advise to disable the CPU ratio adjustment and various halt states. If you have done this and it is recommended for overclocking then I believe adaptive vcore will no longer function.

ChrisC001 · 21 Mar 2018 at 16:40

Ah, I suspected some may be wary of the link which is fair enough.

it did indeed advise this - specifically Speedshift and c3/6/7 and c8 state support. I thought it was CPU turbo boost that controlled the cpu speed profile when at load/idle.

If I was to ignore the guide and set speedshift to auto/enabled and the various power states listed above as active is there anything I need to be aware of voltage wise?

Any ideas why the cpu is over-volting by around 0.07v?

Thanks for the reply!

james_2k · 21 Mar 2018 at 16:48

what are your LLC settings?

ChrisC001 · 21 Mar 2018 at 19:02

I've set it to 'turbo'

Bugbait · 22 Mar 2018 at 10:03

ChrisC001 said:
it did indeed advise this - specifically Speedshift and c3/6/7 and c8 state support. I thought it was CPU turbo boost that controlled the cpu speed profile when at load/idle.

Turbo refers to the CPU ratio being set above default. Speedshift is the name for the technology that Intel uses to dynamically change the ratio, up and down. Disabling Speedshift locks the CPU ratio to whatever has been set.

ChrisC001 said:
If I was to ignore the guide and set speedshift to auto/enabled and the various power states listed above as active is there anything I need to be aware of voltage wise?

You should have the option to set a static vcore or use an offset for the adaptive, not both.

ChrisC001 said:
Any ideas why the cpu is over-volting by around 0.07v?

Whatever you set as a vcore is a "target", the actual is always slightly different. LLC will impact this as well, it determines how aggressively the motherboard will try to match the setting.