Then we'd have to change it in a NVRAM edit. If you want to dump chip and send me the dump and tell me what voltage you want, I'll edit then you program once more, we can do it' just be sure you pick the voltage you want to stick with or you'll have to do it all again.

Im not sure haha, I was thinking 1.35 because thats what the xmp profile was supposed to use, and then just tighten the timings - but im new to this :-p , are we sure theres not another voltage setting thats preventing me from changing the voltage? no other overrides. theres offsets, dont really know what those do haha, it keeps all the other settings just not voltage

Offsets are used with "Auto" voltage, you set auto and then use offsets + or - to increase/decrease how much auto uses on the fly
I don't think there is anything else stopping you from being able to use more than 1.2, I checked all BIOS settings and other than what I mentioned nothing caught my eye.

Do you have "Custom" profile set, or XMP? Set Custom if you want to set voltage manually, that would be the norm
However in this instance maybe try XMP enabled but then manually set all timings and speed you are using now (if it will let you, it should), and then see what auto voltage applies, then come back and try to set manually again.

We can hard set 1.35V if you want, all up to you.

Im not sure it will let me adjust settings with xmp selected, any time ive tried xmp it doesn't post and gets a corrupt memory beep code, ill double check

EDIT* yeah when i select xmp it doesnt show the changes its going to make and greys everything out, the one thing i dont understand is it has the option for voltage there, but then at the bottom there is a greyed out option called VDD, isnt that also the voltage?

Set XMP, then also set all items you've been setting manually still manually as well. Sometimes you can't they get grayed out, but not always.

Raise tFAW to 31, that may help you get higher than 2666

Vdd could be anything, that's used as a generic voltage usually in a label such as CPU Vdd, NB Vdd etc. It may be chipset voltage here (VCCSA) since it's memory related and this is generally set/raised for higher memory speeds like you'd use in an XMP profile.
Where you see that, it's only a textual entry, to show you voltage amount set/applied/live etc. I see this in string of your BIOS for the Memory Voltage Override (Vddq). Default = no override, so that VDD is probably to show the VDD memory voltage (ie current voltage, or voltage to be applied from XMP etc)
Maybe, when you choose XMP, it's not compatible, or not picking the correct profile (since you memory has large number of profiles there. Best we do manually as you have been probably, just can't figure out why you can't set the voltage manually properly!?!?!

I looked all through it again and don't see anything that should be stropping you from raising it. All I know is we can force it higher if you want with another programmed in BIOS.

Does it act the same, if you use 100 reference clock instead of 133? I know you may not be able to get same exact speeds, but do some tests with that too, in case it's some bug with the 133 option.

Ill try tonight, sorry was gone for the weekend then caught a stomach flu D:


EDIT*

Nah still no go, i was able to get it over 2800 with 100 and changing the multiplier, but if i set xmp profile it crashes, and no matter what i do it wont keep a voltage change. seems like it will let me change the multiplier no prob im assuming it can just only go so far without increased voltage? Weird that it gets a beep code when you apply XMP profiles, ive had that a couple times when tinkering with settings but the majority of the time it just , restarts a couple times and reverts the changes to default. one thing i noticed when i tried to do setting similar to XMP profile, it reverted the voltage to 1.2 and also lowered the tWTR_L and tWTR_S, not sure if that means anything? Once my wife is off her PC ill get you another BIOS dump unless you have any other ideas

Here's the bios dump, set it to 1.4v? give us some wiggle room?

XMP may be designed for another chipset, or is trying to change bclk or some other timing else that system doesn't like, it's hard to say. Did you try XMP with both 100 and 133 reference clock set?
XMP may be failing if it's trying to set 100 reference clock x 32, since that is not possible on this system. So that could be why the error every time.

Are you sure 1.4V? It would be hard set there, are you sure that's not too high? I haven't kept up with DDR4 lately, but I always assumed 1.2 standard, 1.3-1.35 was pushing it with 1.35 being deep end of OC territory and may not be safe using much above that for daily use.
That's just what I had in mind though, this is not based on anything I've read or heard that should be respected with any authority

ive read with good cooling b die can handle 1.5v daily, but yeah we can do 1.35, i was just thinking just incase lol but better be safe then sorry

It's not about what the memory can handle, it's what will or wont fry the memory controller in the CPU that I was concerned about.
Yeah, lets do 1.35 for now, and then if it works and you feel you still need 1.4 then we can do that. But, before we do, I just realized you never answered or showed me, what I asked in post #21 last comment

Where are you checking the voltage applied? If you cannot see live memory voltage in BIOS somewhere, you'll have to use HWINFO64 (click sensors icon at top, then find DDR voltage towards bottom) or AIDA64 (in the Computer >> Sensor Section)
What you see in BIOS may not be actual/applied, best to confirm in windows. And do that confirm by lowering it in BIOS, to see that it doesn't remain at 1.2 or whatever you see with stock/auto/1.2 set.

I think i was going into the intel extreme utility and seeing what profile it showed was loaded, i dont remember clearly xD since then ive just been going back into the bios after, and i noticed that it would keep the other settings but revert the voltage and change a couple other settings. and in the intel utility literally if i try to change the profile it will apply the timings and everything but it will come bback with an error on reboot saying there was an error when trying to change the voltage

It will be 1.35 when I'm done Please wait

Also, Intel Utility and "profile" does not sound like the answer I wanted, I was asking for you to check actual applied (Live) voltage in windows, with HWINFO64 or AIDA64 etc.
And then set less than 1.2 to confirm that change is applied or not. But anyway, see above

i couldnt find a live voltage in hwinfo, and nothing seemed to be expandable or have the option to show more information, oh sorry, i also did go in and check what the ram speed was running at after trying to adjust voltage and multiplier, when i tried with voltage the speed to wind up lower then it has been previously, would not apply multiplier or voltage, would actually lower multiplier

I see what happened I think, in some areas of the NVRAM this setting is set to an invalid value (default should be 00 00 and in some places it's B4 04 instead, which is invalid for this setting - I now see this is locking in the 1.2!)
Anyway, BIOS coming shortly

* Edit - per your new reply above

Here is where you see live voltage in HWINFO


Sorry, your last sentence there is very confusing Lowering voltage for a test does not involve ram speed, or multi etc, unless you meant you lowered that just in case less voltage wasn't working with what you had set.
Anyway, for this kind of voltage check, we don't care about memory speed or timings,you can set as low as you want, we're only looking to see if actual voltage change applied or not (so you can see if you actually need the mod I'm doing or not, or if what you set 1.35 is actually applying)
See above for how to check current live in-use voltage

* Edit - @Motion - here is 1.35v hard set - https://ufile.io/v24qb59p

yeah mine doesnt look like that lol, and what i meant was that when i turned up the multiplier and the voltage, it would reset it back to 1.2 by itself, aswell as it would set the multiplier lower then i had it previously set :-p, memory still appears to be running at 1.2V, trying to find a tool that will actually show me a live voltage....just tried passmark ram monitor and it shows it as 1.2, so far have not been able to do anything i wasn't able to before. for some reason neither aida64 or hwmonitor show the ram voltage, which they both should. This motherboard is garbage -.- . Added a pdf i made keeping track of the timings I've gotten working, using the 2792 currently.