Z690 unify x issues

citay

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DDR5-6400 is not easy at all! It's not like you punch in a few settings and it works. This is fine-tuning at a high level right now. It will only get easier with future CPU IMC and board generations.
It's best if you make a new thread, list detailed models of all your hardware, and then we see if there can be something done about it.
 

Xo-itoshi

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DDR5-6400 is not easy at all! It's not like you punch in a few settings and it works. This is fine-tuning at a high level right now. It will only get easier with future CPU IMC and board generations.
It's best if you make a new thread, list detailed models of all your hardware, and then we see if there can be something done about it.
I have a question the temperature of the rams plays on xmp 6400? at what temperature can we consider a loss of stability? on memtest I get 65 degrees but without errors. is it different in games? i can get 45 degrees on heavy games
 

citay

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I don't know how heat-tolerant DDR5 memory chips are. I know 65°C would be extremely hot for DDR4 and would require active RAM cooling, but apparently for DDR5 it's a bit different.
 
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finally someone like me. what is your bios version? I also have no errors regardless of the software used and always crashes regardless of the frequency, 6400,6200
 

Xo-itoshi

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My bios vers is 7D28vA6 yes 64,63,62,6133,60 crash . i think my gpu can cause the issue what good software can i use ??
 

citay

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What's your GPU? Then i can check how the cooling is laid out (if most hot air is pushed out sideways or front and back) and how much heat it dumps into the case overall.

always crashes regardless of the frequency, 6400,6200
DDR5-6400 and -6200 are both very high, nothing above 6000 can be considered a "safe" frequency with DDR5. If you really want to see how much the DDR speed has to do with it, lower to 5600 or so.
 

Xo-itoshi

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My GPU is a 3080 ventus . 6000 can’t does work ..?? I buy 6400 no 5600.. pffff . I carried out tests which do not present any worries why I would have some in games?? if a problem were present would it not be noticed on tm5? I need to lower to 5600 ????
 

citay

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My GPU is a 3080 ventus . 6000 can’t does work ..?? I buy 6400 no 5600.. pffff . I carried out tests which do not present any worries why I would have some in games?? if a problem were present would it not be noticed on tm5? I need to lower to 5600 ????
Ok, 3080 Ventus should have a TDP of 320W which corresponds into an equal amount of heat output, that's a lot.

The cooling fins are laid out in the "traditional" way, meaning towards the short sides of the PCB, so the hot air is pushed onto the motherboard and towards the side of the case:



If you think that this considerable heat towards the RAM area contributes to an instability, then you could try to undervolt your 3080 a bit:


About the RAM speed that's on the packaging, you can buy RAM with whatever advertised speed that you want, but that only means that the RAM itself is capable of it.

However, the following factors all affect if the RAM can run at a certain speed:
- Your mainboard (PCB layer count, PCB trace optimization, RAM slot layout, component selection, RAM VRM etc.)
- The mainboard's BIOS optimizations
- Your CPU's integrated memory controller (IMC), quality depends on the individual CPU (silicon lottery, not only for CPU core quality, also for Uncore/IMC quality)
- And finally, the properties of the RAM modules.

As you see, the RAM is just one piece of the puzzle in the memory system.
I already mentioned that here before: XMP is never guaranteed, it's just a goal that can be achieved under ideal circumstances. If someone from the future brought back a kit of DDR5-8000, will it run at DDR5-8000 in any current hardware? Of course not. But the RAM itself is not the limitation. The board, BIOS and IMC are not capable of it at the moment, such speeds require future platforms.

DDR5-6400 is at the limit of what is possible on today's only DDR5 platform (12th gen / 600-series). We will see how future DDR5 platforms will do (see timeline). But right now, it can be difficult.
 

Xo-itoshi

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What's your GPU? Then i can check how the cooling is laid out (if most hot air is pushed out sideways or front and back) and how much heat it dumps into the case overall.



DDR5-6400 and -6200 are both very high, nothing above 6000 can be considered a "safe" frequency with DDR5. If you really want to see how much the DDR speed has to do with it, lower to 5600 or so.
[/QUOTE after another test a get freeze at 5600mhz ..
 

citay

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The timings are all listed under "Advanced DRAM Configuration". The higher up the timings, the more important they are, more or less.



You can press F12 in the BIOS for a BMP screenshot to a FAT32 drive, then convert to PNG to reduce the size.
 

Xo-itoshi

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The timings are all listed under "Advanced DRAM Configuration". The higher up the timings, the more important they are, more or less.



You can press F12 in the BIOS for a BMP screenshot to a FAT32 drive, then convert to PNG to reduce the size.
I use default timing . I just put 5600mhz try defaut and freeze and i try just put 1.40v on ram and freeze too =( did u think my mobo get issue ? Weak DIM RAM
 

citay

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The RAM itself doesn't seem to be the issue, proven further by the fact that more DRAM Voltage doesn't help either. That still leaves the other factors that i mentioned.
Maybe you need to increase some IMC-related voltage instead. Check what the board sets on 5600 Auto for CPU SA, VDDQ, and VDD2 voltage, as well as DRAM Voltage and DRAM VDDQ Voltage.

If we can't get far, in the end you can contact MSI directly, naming your exact RAM model, and tell them about your problems. It's possible that it needs further BIOS optimizations.
It could also come from your CPU's IMC. Neither with BIOS issues nor with IMC issues would it help to have the board replaced, so i wouldn't draw any premature conclusions.
 

Xo-itoshi

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@citay for 6400 it’s command rate 2n auto . And 32 39 39 102 . For 6400 CPU SA volatge mod auto CPU SA volatge 1.298V VDDQ 1.358V VDDQ2 1.400V DRAM VOLTAGE and DRAM VDDQ VOLTAGE both 1.400V
 

citay

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Like all those top kits at DDR5-6400, they use very aggressive timings and voltages already. And depending on your CPU's IMC (silicon lottery), it might need even a bit higher voltages here and there still to make it stable at that (even though DRAM voltages of 1.4V are already around the maximum recommended for daily use on DDR5). So you could say this is a very ambitious XMP profile.

But what i wanted to know was DDR5-5600, what does it use there?
 
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