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Trying to get xmp to work again

Level 7

Trying to get xmp to work… again

So I once had xmp working, lost my settings, tried to fix it, now it’s unstable AF. But let’s take it back to the beginning

I recently built my first pc and it’s great! Picked a Intel 13900k, Asus rog strix z790-f mobo, Asus rog strix 4070, and 4x16gb Corsair dominator ram 7200mhz and 980s for my m.2s. When I first built it I could not get xmp to work at first.

Eventually I got it to pass a 24 hour 4 pass memtest86 at 6800mhz with the VDD and VDDQ at 1.46 or 1.48. Can’t remember the exact voltage as I’m playing by memory(I won’t forget to write changes down again). It was running great and had zero issues. After learning sometimes with tighter timings you need to up voltage. I tried it, it worked, I was happy. Maybe not the right way to do it but… 🤷🏻

Long story short. Went to move my pc, accidentally hit the clear cmos button, the rest is a mess from there. Lol.

With the listed settings above I have successfully passed one memtest but keep failing by ~5-10 errors. I can boot in to windows and use my pc, even launch a game but not pass memtest.

I have tried to get xmp to work for 7200 and 7000, but that’s a huge mess and clearly outside of my knowledge. I know enough to get myself in trouble. Haha. I ran varying voltages and speeds from 1.45-1.48 for both 7200 and 7000, all fail, 6800 is much better but still fails. Saw a bios update was available. Updated the bios. Tried again, all same results.

Can somebody help this noob get xmp working?

Yes I know ddr5 does not like 4 DIMM, and I’m ok with not hitting 7200 if it just can’t do it. It’s my first pc and I’m learning.


Super Moderator

Hi there,

4x16GB 7200MT? What kit PN? Sounds like you're combining them which is not recommended.

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


Level 9

I have been swapping between AMD and Intel for a long time. Regardless that, I have been an overclocker since I got my first Pentium 333 MHz 1996 or 97 if I remember well. I managed then to Overclock my Pentium 333 to 450 MHz. Crazy even from the start. As for what you are saying about that DDR5 doesn't like 4 Dimms, No overclock actually likes 4 Dimms. Especially since the Dual Channel RAMS started. Before that it was not so much an issue. Overclocking CPU or RAM, the 4 Dimms cause problems that I haven't really heard anyone explaining precisely why. My opinion is that these kits are tested in pairs and not quad pairs. Example...Let's go back to 2012 when I overclocked my FX8350 to 4.7 and 5.1 GHz. With 4 DDR3 Corsair Platinum, memtest, Prime95 would fail quickly. So that was 4X4=16 GB RAM, not over clocked. Then I would take out 2 and keep the same settings and my OC was stable for days. Then I would go and adjust my timings of my RAM and that would work too. This PC still works, even though I don't use other than as a server for some games I have on and play with my main, Like L2, WOW...And I know that the problem was the 4 sticks of RAM. I took them back to the store and got 2 8GB sticks and everything worked perfectly fine.

I have an I7-4820 and I had the same problems with overclocking either CPU or RAM.

I currently have an AMD 3900X all core 4.3GHz @1.296V. I have posted in recently but I was mistaken with the voltage saying it was 1.288V when it is 1.296V. When I first bought it, because it was a DDR4 I decided to go with 4X16 GB RAM. But when I Overclocked it was failing. I didn't even think about it. I took them back and got 2 X 32GB RAM and my PC is stable Overclocked 24/7 without a single problem and temperatures when rendering never exceed 74-76 C. Even my RAM OC works perfectly fine. My RAM's are rated way below the 3600MHz I am running them now.

Now you want to run XMP which is normal and not even overclocking. Normally, you shouldn't have any problem unless the CPU doesn't support that speed. From my knowledge, Intel officially supports up to 5600MHz RAM. So, you are not trying to run XMP but Overclock it way above it's capabilities and that will require my crazy risky brain and cooling and CPU overclocking. If you are lucky with the silicone lottery CPU, then you might be able to get your RAM running faster than 5600 MHz. If you really want to go that high, you will have increased temperatures on the CPU. Your RAM should run without changing any settings change or voltage change. But you will have to change your CPU settings. You will be Overclocking it to run it's bus speeds more than the officially stated by Intel. If you don't know what your are doing, you will need to read the manual and find a friend who knows what he is doing. None of the websites or YouTube Channels have any good Overclocking guide. They just put in what they did and happened to achieve without any knowledge of how that works.

My suggestion is to start looking at your lower XMP RAM speeds and try increasing slowly. The only thing you need to do is plug in your RAM, go in the BIOS and start increasing manually the FSB of the CPU in 100 increments to test, every time. But you may have to increase CPU voltage too, maybe not, but maybe you will have to. Depends on your Chip Quality(Silicone Lottery). I do electronics for 30+ years and I know how voltage works, especially these low voltage boards and chips. Let me know if you have any specific questions that I can help you with overclocking if you decide to do it yourself. If you do it safely, you will not burn anything, you will just get the BIOS to auto shutdown and perhaps clear CMOS and start over.

Good Luck

You have to know that overclocking memory sticks is basically to increase the strength of the electrical signal. Four sticks of memory are more difficult to overclock than two sticks of memory because the traces from the memory slots on the motherboard to the CPU are fixed. Two sticks of memory are allocated. These lines will definitely get more than The more four, the stronger the electrical signal strength from the memory slot to the CPU, the more stable the overclocking will be, and the higher the frequency will be, and vice versa. In fact, no matter what overclocking is, what is overclocked is the signal strength of their electrical appliances.

I don't speak English, and the program is translated as you will see.

I know if you are overclocking the memory that is a fact. But he is not trying to overclock his memory. It is rated 7200MHz but his CPU is officially supporting 5600MHz. So he needs to overclock his CPU and not the RAM. Unless he wants his RAM to run faster than 7200MHz

Not that the post has anything to do with the OP, but an overclock on the memory is anything that surpasses JEDEC and CPU whitepaper specification. The memory vendor conducts a binning process to best ensure the kit will operate at the frequency, voltage and timings they are sold in, however as you can see from CPUZ the kit is very much out of spec for what Hynix manufactured it for and therefore can be considered an overclock. 



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