H170 performance/hyper

alexaspi wrote: Hello, I own the H170 performance/hyper and when i tried to oc i didn't find the choice ''DDR4 non z oc'' why don't I have this in my bios. thank you.

The information about DDR4 Non-Z OC in your board's overview is this:

With ASRock's DDR4 Non-Z OC users may overclock the memory of H170/Q170/B150/H110/C232 models using certain memory sticks, such as Kingston or Samsung memory DIMMs.

Note that is states that you may OC the memory of "... certain memory sticks, such as Kingston or Samsung memory DIMMs.". That means that it may not work with all models of memory.

What model of DDR4 memory are you using?

Also, we find this note in your board's Memory Support List:

Note6: The system needs discrete VGA card to support DDR4-2133+

That means if you are using the Intel iGPU, you could not operate your memory above a speed of 2133. The maximum DDR4 memory speed for Intel Skylake processors is 2133, so DDR4 Non-Z OC would operate the memory at a higher speed than 2133, and require the use of a video card.

Which UEFI/BIOS version do you have in your board?

There is also another possible reason why the DDR4 Non-Z OC feature is not available. The description for the 1.30 UEFI/BIOS version contains this:

Remove Sky OC function.

ASRock at one time tried to add a CPU over clocking feature to many of the Intel 100 series chipset boards, like your H170. That feature was called Sky OC.

Intel only allows over clocking on their 'Z' chipset boards, like the Z170, Z270, etc. Intel forced ASRock to remove the Sky OC feature from all the non-Z chipset boards. Not only was the feature removed, but Intel added a new CPU microcode to the UEFI/BIOS file that does not allow the Sky OC feature to work, even if the UEFI/BIOS options to OC were available.

Sorry to say, three possible reasons why you don't have the DDR4 Non-Z OC feature in your UEFI/BIOS.

Hello there, i happen to have the same motherboard,
ddr non z oc appears in the bios and has the option such as comfort sport or sport +
https://s18.postimg.org/4wms9c6ll/image.jpg
i manage to get mine trident z 2x8 ram to 2800 (their rated speed) but only using the sport plus option otherwise my manual ddr4 overclock wasn't stable after 2400mhz
in the OP motherboard ( a friend of mine) this option doesn't even exist in the bios let alone configure it, its not even in gray , unclickable letters, it simply isn't there.... strange
skyOC is turned on and the cpu overclocks like a charm,
we have check the ram and it seems to be samsung die and compatible, we use the same stock bios 1.2  and of course we use a gpu ,,,,


I cannot find any reasonable explanation why his bios doesn't not have that option while mine exactly same motherboard same bios has ....
maybe its broken i don't know...

;i take the cpu at 4.4ghz but i can't oc the ram........

Well we manage to fix the issue, it has nothing to do with micro code or bios, what so ever, we both run windows 10 and there is no microcode yet to block our skyOC
the problem was with the 4th slot, which while recognize the ram module , wont make "ddr4 non z oc" happen, we moved the ram to 1st and 3rth slot and it works at 2800 rated speed, like a charm.
Thanks for your help nevertheless