Questions about MPG Z390 GAMING EDGE AC and running DDR4-4000 memory

jdetnersk150802d6

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I have been using an ASUS motherboard in my gaming rig for a while now and have had issues running my memory stable at 4K speeds and need to manually set the speeds back to DDR4-3600 for it to be stable. I'm currently trying to run 4 sticks of G Skill's F4-4000C18-8GTZ memory (certified in the MOBO's QVL to run in this config) and have worked with both ASUS and G Skill tech support adjusting timings and voltages with zero luck while both blame the other for the issue (90% sure its the MOBO due to symptomology). I recently acquired a 6800 XT to upgrade my rig and am revisiting the memory issue to try and optimize my rig for peak performance with the new GPU. So my question to this forum is this:

Can the MPG Z390 Gaming Edge AC run all 4 of my memory modules at 4K speeds and maintain stability? The Memory QVL would suggest no because it only certifies 2 at a time but wanted to put it out here to the people that actually use the motherboards for a solid answer. Any help would be appreciated, looking to make my purchase soon but am holding back until I get confirmation from other users. I have attached a text file summary of my components created with HWiNFO64 for those with specific hardware questions.
 

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jdetnersk150802d6

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The motherboard is capable to run the memory at 4400 MHz.
But your CPU IMC is probably not ...
I'm running an i7-8086k stable @5 Ghz so the CPU is not the issue. My rig has run the 4k stable for benchmark and memtest, etc. The stability issues hit when idle and I get slight voltage fluctuations. Asus says failing memory, GSkill say failing capacitors, either way i'm done fighting with it. The Asus board i'm running actually has my CPU and memory in the QVL so just because the specs say it should doesn't mean it will.
Have you run 4k ram on this board or are you basing your comment on its specs?
 

jdetnersk150802d6

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Like I said in my last post, just because the specs say one thing does not make it a limitation. Ran this same chip stable with this 4k memory in 2 other test systems and though Intel set the memory standard to 2666 it's actually built for 4k+ memory speeds if you read any of the reviews on this CPU.
Do you have personal experience running this board with 4k ram or are you just tossing specs at me attempting to be helpful? Not trying to be rude but I've had this same conversation with actual tech support from intel, Asus and g skill with each pointing the finger at the other getting zero solutions. Both the CPU and memory have run stable in other rigs, i'm just looking for input from people that have used this mobo with 4k memory to hear their experiences, good or bad.
 

vick1000

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What he is saying is the memory controller on the CPU may not be capable of 4000mhz RAM interface. While you have run it at those speeds on another system, did you verfy timings at that speed? If you set anything to auto or XMP for RAM in the BIOS, you never know what that will set the timings to. So if you try and relax timings manually, you may get the 4000mhz you desire. CPU settings might differ board to board as well, a lot of hidden settings in most BIOS. I would start with say 3200mhz stable, and work your way up from there, checking CPU voltages across the chip as you go.
 

jdetnersk150802d6

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What he is saying is the memory controller on the CPU may not be capable of 4000mhz RAM interface. While you have run it at those speeds on another system, did you verfy timings at that speed? If you set anything to auto or XMP for RAM in the BIOS, you never know what that will set the timings to. So if you try and relax timings manually, you may get the 4000mhz you desire. CPU settings might differ board to board as well, a lot of hidden settings in most BIOS. I would start with say 3200mhz stable, and work your way up from there, checking CPU voltages across the chip as you go.
I understand what he was saying and where he's coming from but i've spent almost 2 years with this equipment, troubleshooting with each bios update that promised improved stability. Have gone round and round with Intel, Asus and g skill all saying it should work and I have had both CPU and memory in other boards that have been stable at the speeds I'm seeking but those boards were lacking in other ways that kept me from buying. The MPG Z390 Gaming Edge has all the options I'm looking for in a mobo and by the specs should perform as I hope so all I'm looking for is personal experiences with this board running 4k ram, nothing more, nothing less. I appreciate the desire to help troubleshoot, trust me, I get it. Lol, been dealing with this headache for too long.
 

vick1000

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What were the RAM timing on those boards? What I am saying is we don't know how each BIOS version, board to board, sets timings in auto situations. 3200mhz and down are pretty well known and accounted for, start pushing the envelope and things need to be verified. You are overclocking after all.
 
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jdetnersk150802d6

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What were the RAM timing on those boards? What I am saying is we don't know how each BIOS version, board to board, sets timings in auto situations.
What does it matter? I'm done troubleshooting. I'm just looking for people that use this board with ddr4-4000 memory and their experiences with it.. Simple as that.
 

vick1000

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What does it matter? I'm done troubleshooting. I'm just looking for people that use this board with ddr4-4000 memory and their experiences with it.. Simple as that.
It matters, no matter what board you decide on. Don't give your life story in your post if all you want is a simple answer. Simple question, simple answer.
 

jdetnersk150802d6

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It matters, no matter what board you decide on. Don't give your life story in your post if all you want is a simple answer. Simple question, simple answer.
I did post a simple question.. Can this MOBO run 4 DDR4-4000 modules and everyone wants to troubleshoot a motherboard that I've been dealing with for almost 2 years. So instead of being snarky do you have anything productive to add? Have you used this MOBO with 4 sticks of DDR4-4000 memory? If not, move along, I don't have time for your ignorance.
 

badboy2k

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I did post a simple question.. Can this MOBO run 4 DDR4-4000 modules and everyone wants to troubleshoot a motherboard that I've been dealing with for almost 2 years. So instead of being snarky do you have anything productive to add? Have you used this MOBO with 4 sticks of DDR4-4000 memory? If not, move along, I don't have time for your ignorance.
watch your tone. your starting to become very combative and if it continues we Will have to take action.

like vick1000 said its a mix between the IMC on your CPU and what the BIOS sets for its main timings and sub timings when your running XMP or manually setting them as it may be the ASUS and Gigabyte boards where using had much more relaxed timings so unless you know the exact setting it was running at on the other boards and can match them exactly the auto timings its running on auto may be too tight for your CPU's memory controller to handle and its not letting it work.

so what you need to do is go deep into trying manual timings for everything and work out what setting make it fail especially in the Sub Timings for memory.
 

jdetnersk150802d6

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watch your tone. your starting to become very combative and if it continues we Will have to take action.

like vick1000 said its a mix between the IMC on your CPU and what the BIOS sets for its main timings and sub timings when your running XMP or manually setting them as it may be the ASUS and Gigabyte boards where using had much more relaxed timings so unless you know the exact setting it was running at on the other boards and can match them exactly the auto timings its running on auto may be too tight for your CPU's memory controller to handle and its not letting it work.

so what you need to do is go deep into trying manual timings for everything and work out what setting make it fail especially in the Sub Timings for memory.
Since you are a global moderator I'm guessing you can delete this post.. Please do so because I tried earlier and it seems that I can only unfollow it. I'll look for my information elsewhere since it appears even the moderators don't get the idea that I just want to hear from someone that has actually used this board and successfully ran 4 sticks of DDR4-4000 memory. I want to hear about their experience; was it easy, were there headaches. But no, every time I try to get that info or ask if the person replying actually used this board I get troubleshooting tips that I never asked for so I'm sorry if I am sounding confrontational but it seems to be the only way to get my point across. I understand the process of adjusting timings and voltages, I know what needs to be done, I've done it many times before on much more complicated pieces of equipment. I just wanted to know from someone with experience using this particular board how it was. Oh well..
 

badboy2k

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Since you are a global moderator I'm guessing you can delete this post.. Please do so because I tried earlier and it seems that I can only unfollow it. I'll look for my information elsewhere since it appears even the moderators don't get the idea that I just want to hear from someone that has actually used this board and successfully ran 4 sticks of DDR4-4000 memory. I want to hear about their experience; was it easy, were there headaches. But no, every time I try to get that info or ask if the person replying actually used this board I get troubleshooting tips that I never asked for so I'm sorry if I am sounding confrontational but it seems to be the only way to get my point across. I understand the process of adjusting timings and voltages, I know what needs to be done, I've done it many times before on much more complicated pieces of equipment. I just wanted to know from someone with experience using this particular board how it was. Oh well..
I could delete it if I wanted to.

as you are asking about a very specific configuration on the MPG Z390 GAMING EDGE AC motherboard with 4 4000Mhz RAM sticks what your asking for is probably 1 person in 5 million to respond about there experience who is using that exact setup which is very unlikly they will be here. I do have a MPG Z390 GAMING EDGE AC motherboard too but only have 2x8GB 3000 Mhz RAM on it and that works fine as most processors will allow the RAM to go above the base spec of 2666Mhz as intel are always very conservative with there estimates on RAM speed.

I will leave it up as who knows if that 1 in 5million shows up here and wants to say what there experience was as who knows for sure.

if someone gives you a answer here you do not want your better off just ignoring it rather then fighting them about it if you can that is all i am really asking you to do.
 

vick1000

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Why post all those details, then get angry when someone extrapolates upon them? If all you wanted was user feedback of a single product in a specific configuration, don't flood the post with what would be useless information toward your goal. In any case, you are pushing the bleeding edge of overclocking memory at 4gz. Even if it works for one person on the exact same hardware, there is no gurantee it would work for you.
 
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