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Asus Rog Strix Z790-E Gaming Wifi - XMP busts startup

zfpuhi21
Level 8

Hello,

I have just finished with my new PC setup, I have installed windows 10 OC , updated it to the latest. Afterwards downloaded the BIOS update to 904 and updated the BIOS.

Afterwards I tried to activate the X.M.P. as my DDR wasn't properly used (was set to the lowest possible MHz) instead of as it should its '6000' MHz:

Model of DDR5 Ram:
- KINGSTON FURY BEAST DIMM KIT 64GB KF560C36BBEK2-64 | PC5-48000U DDR5-6000 | CL36-38-38 | 1.35V

As you can see from the screenshot bellow those are the settings that the "X.M.P" set that didn't work.

351509885_1721526414947378_2695631800242517325_n.jpg

I checked few topics and I saw suggestions to changing the volts of VDD and VDDQ up to 1.41 I tried that but didn't work (the PC could not start at all).

Any suggestions would be great on how to resolve the issue.

Asus Rog Strix Z790-E | i9-13900KF | Fractal Design - Torrent TG Light| KF560C36BBEK2-64GB (Fury Kingston)| Seasonic 1600 W Platinum |SSD - Samsung 860 EVO 2 TB x 2 (Raid 0) |NVME - Samsung SSD 970 EVO Plus 1 TB (M.2_4)+Samsung SSD 990 PRO 2 TB (M.2_1)|HDD WDC WD4002FFWX-68TZ4N0 4TB+ST8000NE001-2M7101 8TB)
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11 REPLIES 11

Silent_Scone
Super Moderator

Hello,
This kit does not appear to be on the motherboard's QVL.

You can try enabling XMPII which will load the default DIMM profile, this can sometimes offer relaxed sub-timings to aid in stability.

Silent_Scone_0-1685943562897.png

 

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

I performed the change from Auto to XMP ll, but unfortunately no joy.

Attaching screenshots (photos) of the changes that were made from the XMP ll which were 99% almost the same as the XMP profile with no joy. I have never imagine that brand new RAM DDR5 will not be properly supported with an expensive motherboard by asus rog.

 

351680505_780169247138178_1319445602534145674_n.jpg351264461_562554432717433_1597172168472780638_n.jpg351524879_1038152057165434_7285278873994174392_n.jpg

 

Edit:

Also I noticed on the page QVL that they only say slot "1,2" but what happens if you buy a 4x, does that mean you will have only 1,2 slots with proper conf and 3,4 will not? Or you will have to rotate the RAM 🤣, as I will see if the vendor can take the RAM back (most likely not) if things don't work out.

Asus Rog Strix Z790-E | i9-13900KF | Fractal Design - Torrent TG Light| KF560C36BBEK2-64GB (Fury Kingston)| Seasonic 1600 W Platinum |SSD - Samsung 860 EVO 2 TB x 2 (Raid 0) |NVME - Samsung SSD 970 EVO Plus 1 TB (M.2_4)+Samsung SSD 990 PRO 2 TB (M.2_1)|HDD WDC WD4002FFWX-68TZ4N0 4TB+ST8000NE001-2M7101 8TB)

Some of the changes made when applying XMP II won't be listed in the Save Changes list as it's applying [Auto] values for specific memory subsets.
The QVL lists 1,2 config which specifies that the kit was validated with both modules. The QVL doesn't accommodate for users buying more modules as memory kits are validated in the density in which they are sold, and vendors do not support mixing or combining memory kits.

I would recommend returning the kit for a kit present on the QVL if wanting the best possible chance of plug-and-play compatibility.

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

zfpuhi21
Level 8

I am not suggesting mixing kits, simply buying 2 x 32 GB kit and later on buying same kit again and having 4 slots taken.

As for the return I will try but in the case that the vendor does not want to comply are there any other possible solutions that could be performed in my case for the RAM to be as close as possible to its operational stats?

Asus Rog Strix Z790-E | i9-13900KF | Fractal Design - Torrent TG Light| KF560C36BBEK2-64GB (Fury Kingston)| Seasonic 1600 W Platinum |SSD - Samsung 860 EVO 2 TB x 2 (Raid 0) |NVME - Samsung SSD 970 EVO Plus 1 TB (M.2_4)+Samsung SSD 990 PRO 2 TB (M.2_1)|HDD WDC WD4002FFWX-68TZ4N0 4TB+ST8000NE001-2M7101 8TB)

Combining the same two kits constitutes mixing kits, as memory kits are binned and validated by both the memory and board vendor in the density in which they are sold. When we combine/mix we eat into the operating guardband set in place that ensures the kit will work at the validated frequency, timings and voltage.

With the kit you currently have, you can try tuning the CPU System Agent and Memory Controller Voltage as this is the easiest method. Alternatively, lower the frequency bin and see where you can find stability. Or as already discussed return the kit and purchase a memory kit present on the motherboard's memory QVL 👍

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

Basically you are saying that instead of buying 2 kits of 2x32 of the same product I should buy a 4x32 kit? That is kinda meaningless if you are on the low end of funds and simply plan to get more ram down the road by adding an additional kit of the same.

As for increasing / mingling with CPU system Agent and Memory Controller Voltage, I am not even sure what values are safe to TRY or which exact settings to change as when I used the "Search" in the bios there were more than few popping with the same name.

Could you please provide more details as I have seen on the forum that people suggested different things to be adjusted including DIM voltages and etc.

Looking forward to hearing back from you.

Asus Rog Strix Z790-E | i9-13900KF | Fractal Design - Torrent TG Light| KF560C36BBEK2-64GB (Fury Kingston)| Seasonic 1600 W Platinum |SSD - Samsung 860 EVO 2 TB x 2 (Raid 0) |NVME - Samsung SSD 970 EVO Plus 1 TB (M.2_4)+Samsung SSD 990 PRO 2 TB (M.2_1)|HDD WDC WD4002FFWX-68TZ4N0 4TB+ST8000NE001-2M7101 8TB)


@zfpuhi21 wrote:

Basically you are saying that instead of buying 2 kits of 2x32 of the same product I should buy a 4x32 kit? That is kinda meaningless if you are on the low end of funds and simply plan to get more ram down the road by adding an additional kit of the same.


Correct, for reasons which I have already outlined above. The memory vendor can't and does not account for users gingerly adding more memory to the system at a later date 😁. The memory is binned and then sold at the density at which it is sold. If we then add another two modules, the timings, frequency and voltage the kit was binned for is no longer valid - in other words the signal margin is greatly reduced.

 

You can have a read of the sticky below if you get time as this gives a small (but deeper) insight as to what is happening at an electrical level. https://rog-forum.asus.com/t5/intel-700-600-series/don-t-combine-memory-kits-the-meat-and-potatoes-o...

 


@zfpuhi21 wrote:

 

As for increasizg / mingling with CPU system Agent and Memory Controller Voltage, I am not even sure what values are safe to TRY or which exact settings to change as when I used the "Search" in the bios there were more than few popping with the same name.

Could you please provide more details as I have seen on the forum that people suggested different things to be adjusted including DIM voltages and etc.

Looking forward to hearing back from you.



CPU System Agent can be found under Extreme Tweaker. The auto value will scale with frequency, however some CPUs may be more comfortable at less or more than the value applied.

Values between 1.15 and 1.3v

Memory Controller Voltage is under Advanced Memory Settings located at the bottom of the Extreme Tweaker page. Use values between 1.25 and 1.4v


If available, also try Maximus Tweak Modes I and II under DRAM Timing Control. These may offer better compatibility.

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

zfpuhi21
Level 8

Additional question, since I am with the latest bios should I also update the "MEUpdateTool" as I am not even sure what exactly is that and how to update it (same as bios update?) and if that will help with the RAM at all.

Asus Rog Strix Z790-E | i9-13900KF | Fractal Design - Torrent TG Light| KF560C36BBEK2-64GB (Fury Kingston)| Seasonic 1600 W Platinum |SSD - Samsung 860 EVO 2 TB x 2 (Raid 0) |NVME - Samsung SSD 970 EVO Plus 1 TB (M.2_4)+Samsung SSD 990 PRO 2 TB (M.2_1)|HDD WDC WD4002FFWX-68TZ4N0 4TB+ST8000NE001-2M7101 8TB)

The Management Engine is an embedded microcontroller which is responsible for various low level tasks (secure boot, voltage monitoring etc).

It is recommended to keep this up to date. What impact it will have on overclocking stability can vary, so unable to comment. 

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090