04-08-2023 08:44 AM - edited 04-08-2023 09:36 AM
Hi all,
I am running a Z790-E, 13900k, and G.skill 2x16 7200 RAM (7200J3445G16GX2). The RAM passes memtest at the stock 4800 mhz speed. As soon as I enable XMP, memtest fails.
The RAM is in the A2/B2 slots and I updated to 0904 and 16.1.25.2124 in the BIOS.
Anyone get this board/RAM/CPU combo running with XMP?
04-08-2023 09:25 AM - edited 04-08-2023 09:32 AM
First of all, I want to say, that's an unusual combination, a 10900K on a Z790 mobo.
I've got a rig using a 10900X on a Prime x299 Deluxe, and I had the same problem with trying to get 4 Corsair DDDR4 3600 RAM (4x8) running at XMP.
I know it's not the same, but we both have the 10900 in common, which I believe may be the problem - it may not be so good at interpreting/implementing the XMP settings.
Like your situation, my memory would only run at stock speed - 2400, without errors, until I manually entered the XMP timings into the BIOS. Once I did that and rebooted, I was then able to turn XMP on, and got the XMP 3600 speed without memtest failing after running a full four passes.
So, you may want to give that a try and see if it works for you.
04-08-2023 09:36 AM
Ugh, I had a brain lapse. It's a 13900k (was thinking of my old CPU which is in muscle memory at this point I suppose).
04-15-2023 09:01 PM
Hey there,
Found this thread because I'm having similar issues. Z790-E, i9-13900k, G.skill 4x16 6000 RAM.
Interestingly thr RAM only fails Memtest when I turn on Docp and use more than 32 Gb.
So if I use Docp and separately test each pair of RAM (2x16) - it passes 2 tests. If I turn off Docp - 4 x 16 passes 4 tests. If I try 4x16 RAM and Docp - it fails.
Interesting problem. Had enough for today. Next tests will be 4x16 then manually setup and use reduced settings. (Reduced Hz or increase voltage).
Love to know if anyone else has had success above 32Gb with Docp?
04-17-2023 06:37 PM
Hello thecount,
You have some ultra fast memory, the further you stray from 4800MHz, the more difficult it can be to get stable.
There are five voltages that will help with stabilizing DDR5 memory.
1) VDD voltage
2) VDDQ voltage
3) CPU System Agent voltage
4) IVR Transmitter VDDQ
5) Memory Controller voltage
I'd try setting your manually rather than using X.M.P., if you need help setting it manually, I can assist you.
Spasmann - For 64GB, you should have gone with a 2x32GB kit. If you're combining two separate memory kits, this will only complicate stability further. I would return one memory kit and keep one kit, 32GB is more than enough for gaming. By the way, DOCP is for AMD motherboards. But, you can also try setting your ram manually to see if you can get it stable, if you need help I can assist you too.
04-17-2023 11:33 PM
@Nate152 - thanks for replying.
I would love to have purchased 2 x 32Gb - however at the time I purchased I too thought that 32Gb would be enough. However one of the games I play pushes this to the limit.
I can confirm that after having verified both sets independently using MEMTEST - I was able to get the system stable by upgrading the BIOS to version 0904.
FYI - I am running G.Skill 64GB (4x16GB) F5-6000J3636F16GX2-TZ5NR Trident Z5 Neo RGB CL36 6000MHz DDR5 RAM
and it has been stable across a range of testing.
04-18-2023 01:39 AM - edited 04-18-2023 01:46 AM
For anyone else's reference, we try to keep things objective here and not adhere to the "it works on my machine" mantra. There is good reason both memory and board vendors do not endorse mixing kits, not least of all because the information programmed into SPD that is applied when selecting XMP is only validated in the density in which the kit is sold in. The variables here for the unfamiliar are extensive, to name but a few:
Some conditions which need to be met for stability when mixing or combining memory kits;
1. The memory vendor ensured sufficient guardband to account for signalling variance when the user is running the memory in a higher density.
2. The above condition has enough margin to run the kit at the same frequency.
3. The above condition has enough margin to run the kit at the same timings.
4. The above condition has enough margin to run the kit at the same voltage.
5. The CPU and motherboard are capable of running the kit at the same frequency at the increased density. The higher the frequency, the less likely. You can check the QVL to see if any kits at this density are validated at the desired frequency.
To summarise, in order to avoid potentially leading users up the garden path nobody will actively tell you to try combining or mixing kits 👍
04-28-2023 11:08 AM
Good day i have the same problem, z790 A gaming ddr5 7200 gskill bought from qvl list, but with xmp1 or 2 hci memtestpro gave me 1 error during the first 60% of the test.
05-22-2023 04:51 AM
I have the same problem with my Asus RoG Strix Z790-H Gaming Wifi motherboard.
My specs are:
My PC cannot even start a Windows Installation cause of BSODs even on the start of the Windows 10/11 installation, with any BIOS or BIOS setup. From optimized defaults, until all set to auto, I constantly get restarts or BSOD's during Windows 10 and/or 11 installations. Tried the following already:
When I used the latest (0904) BIOS and enable the XMPII profile and AI on the CPU, I managed to run a memtest through the BIOS and got 186 errors!!!!
Now I don't know how I can get the results of memtest out of the mobo (export to a USB Stick for example) in order to send it to G.Skill and/or ASUS for an RMA and/or share it inside here for more help from experts from ASUS.
I can only share those results only through mobile photos or my monitor?
05-22-2023 04:55 AM
Do you install your ram in a2 b2 ?