[sd_dracula]

Hey guys,

I put together a new build (Maximus XII Hero Wifi/i9 10850k) and I am using 4 of these sticks Patriot Memory Viper Steel Series DDR4 16GB (2 x 8GB) 4400MHz - PVS416G440C9K but I need to replace them because long story short, XMP does not work with this board and I cannot find any manual settings online that can get it to run at least at 4000mhz so I am stuck on the default 2133 which is a waste.

Someone suggested this F4-4000C17D-32GVKB-G.SKILL International Enterprise Co., Ltd. for just XMP set it and forget it.
I was also looking at this Corsair VENGEANCE® LPX 16GB (2 x 8GB) DDR4 DRAM 4266MHz C19 Memory Kit - Black which is down as compatible on the Asus board page but I wonder if XMP works at 4266

Can someone confirm that combo as working for this board before I swap these out?
Any others, ideally lower profile as the noctua cpu fan sits pretty much on top of them

 

[113802]

No one can confirm if it will work, it mainly depends on how lucky you are with the IMC of your 10850K. Anything above DDR4-2933 is considered overclocking. XMP is just an overclocked profile set on memory that have been validated to run that frequency.

That's odd you can't get anything above 2133Mhz working, from what I'm reading that's usually one of the best Samsung B-Die kits to get. Else Patriot failed at their certification or one or both are DOA.

I suggest downloading Thaiphoon Burner - Official Support Website to see if it's actually Samsung b-die.

How I would test your current memory, set XMP and make sure tRFC is set to AUTO.

Keep going down the frequency list of your board until one of them can boot with the XMP timings. If you aren't already aware you have a MemOK button which makes it easy to get back into your bios.

 

[shilka]

Anything higher than 4000 MHz is optimistic even on that board
Dropping down to 3800 MHz is almost the same as 4200 MHz its so little so why even bother

 

[robiatti]

That ram and board combination work pretty decent. I was just using a 10900k and the MXII Hero with the exact same ram running @ 4000 C16-16-16-34 TRFC 300on 4 sticks. I have the ram voltage at 1.45v VCCIO @ 1.25. I am currently running the same sticks on my 5900x @ 3600 C14-14-14-14-32 TRFC 280. 1.45v That memory is very capable. I especially like the look without the glowing unicorn diarrhea nonsense.

 

[sd_dracula]

It can boot with the XMP 4300 profile if I change it to 4000 but it doesn't matter as if I start any game it just crashes after a few minutes.
Auto is the only thing that is actually stable (but auto = 2133 default), maybe there are working timings are out there but haven't got lucky so far.
Maybe I'm just too optimistic and should just get a 3600 kit, really doubt I will notice any actual difference in gaming at 3440x1440

Cpuz is showing Samsung for all the sticks (not sure how accurate that is) and that's one of the reason I went for these also, I knew they were never going to work at 4400 but I assumed I can still get them to run at 4000

That ram and board combination work pretty decent. I was just using a 10900k and the MXII Hero with the exact same ram running @ 4000 C16-16-16-34 TRFC 300on 4 sticks. I have the ram voltage at 1.45v VCCIO @ 1.25. I am currently running the same sticks on my 5900x @ 3600 C14-14-14-14-32 TRFC 280. 1.45v That memory is very capable. I especially like the look without the glowing unicorn diarrhea nonsense.

Can you pls send me your settings? I can give it a try. XMP or manual? And leave other second/third timings on auto?
Just can't find a decent guide online showing all the settings

 

[robiatti]

It can boot with the XMP 4300 profile if I change it to 4000 but it doesn't matter as if I start any game it just crashes after a few minutes.
Auto is the only thing that is actually stable (but auto = 2133 default), maybe there are working timings are out there but haven't got lucky so far.
Maybe I'm just too optimistic and should just get a 3600 kit, really doubt I will notice any actual difference in gaming at 3440x1440

Cpuz is showing Samsung for all the sticks (not sure how accurate that is) and that's one of the reason I went for these also, I knew they were never going to work at 4400 but I assumed I can still get them to run at 4000


Can you pls send me your settings? I can give it a try. XMP or manual? And leave other second/third timings on auto?
Just can't find a decent guide online showing all the settings

I used XMP profile 2, Then manual set the ram to 4000mhz. After that I manually changed the
primary timings to C16-16-16-16-34 TRFC 300. I left all the other timings on Auto. The only other voltages I changed was VCCIO and VCCSA manual to 1.25v. I currently cant check since I upgraded to a diff board and CPU over the weekend.


There is a video from buildzoid using the same ram and a z490 unify. Its a great watch even though the board is different you can take his settings and apply them.

 

[113802]

It can boot with the XMP 4300 profile if I change it to 4000 but it doesn't matter as if I start any game it just crashes after a few minutes.
Auto is the only thing that is actually stable (but auto = 2133 default), maybe there are working timings are out there but haven't got lucky so far.
Maybe I'm just too optimistic and should just get a 3600 kit, really doubt I will notice any actual difference in gaming at 3440x1440

Cpuz is showing Samsung for all the sticks (not sure how accurate that is) and that's one of the reason I went for these also, I knew they were never going to work at 4400 but I assumed I can still get them to run at 4000


Can you pls send me your settings? I can give it a try. XMP or manual? And leave other second/third timings on auto?
Just can't find a decent guide online showing all the settings

I suggest setting tRFC to 350 first then work your way down. I'm running my 4133Mhz Team Group set at 3866Mhz.

Edit: Follow this guide to stress test your memory, I just use Solus Linux but this guide list how to run it via WSL. Running GSAT in Windows 10 with Windows Subsystem for...

 

[sd_dracula]

I used XMP profile 2, Then manual set the ram to 4000mhz. After that I manually changed the
primary timings to C16-16-16-16-34 TRFC 300. I left all the other timings on Auto. The only other voltages I changed was VCCIO and VCCSA manual to 1.25v. I currently cant check since I upgraded to a diff board and CPU over the weekend.


There is a video from buildzoid using the same ram and a z490 unify. Its a great watch even though the board is different you can take his settings and apply them.

XMP2 4400 or XMP2 4300? And yeah I found that video too, no luck getting stable with those timings.
The CPU I have it set to AI Enhanced which sets the multiplier to 49/53 basically.
There is a memory profile in the bios for 4x8Gb samsung chips @4000 which I tried and it boots but that's about it. I think it sets the ram voltage to 1.45v and also the system agent to the same, along with timings change.

I'll try out what you guys pasted above, see if I get lucky.

 

[sd_dracula]

Ok so I set the 16-16-16-34 along with voltages, then set these 5 values to Auto because the board has three tRFC so what should I do set first one to 350 and auto the 2 and 4?

Testing it out now but Auto cycle times set the tRFC to 700 which is not great.

 

[sd_dracula]

And no joy with 350 tfrc either

After a few mins

 

[robiatti]

Ok so I set the 16-16-16-34 along with voltages, then set these 5 values to Auto because the board has three tRFC so what should I do set first one to 350 and auto the 2 and 4? View attachment 2469425

Testing it out now but Auto cycle times set the tRFC to 700 which is not great.

correct, I only changed trfc 1. The auto of 700 is because the xmp profile. Maybe with your sticks you may need a higher setting.

You should run memtest and see if you get errors. I used the one that’s built into the ryzen memory calculator, I picked memtest from the drop down and selected 1000% that should be a good indicator that the memory is stable if you don’t get any errors.

 

[sd_dracula]

Ok some better news. Changed tRFC to 350, left tRFC 2 and 4 to Auto, set freq to ddr3800 and set the CPU to stock speeds and no crash after 1 hour.
Will try to go slowly go up now and see if I can hit 4000.

 

[robiatti]

Ok some better news. Changed tRFC to 350, left tRFC 2 and 4 to Auto, set freq to ddr3800 and set the CPU to stock speeds and no crash after 1 hour.
Will try to go slowly go up now and see if I can hit 4000.

Nice that's encouraging. You may need to adjust voltages a little higher to achieve 4000 @ C16.

 

[sd_dracula]

Same settings seem work ok on 3900 also
Which voltage to up a little for 4000 you reckon? VCCIO and VCCSA? Or the 1.45v on the ram? Or all of them?
Thanks for everyone's input

 

[techenth]

Set 1.4 SA 1.3 IO 1.5 Dram and see how high you can go. Those are perfectly safe voltages.

 

[robiatti]

Same settings seem work ok on 3900 also
Which voltage to up a little for 4000 you reckon? VCCIO and VCCSA? Or the 1.45v on the ram? Or all of them?
Thanks for everyone's input

You could try techenth's suggestion of

Set 1.4 SA 1.3 IO 1.5 Dram and see how high you can go. Those are perfectly safe voltages.

Just keep an eye on CPU and Memory temps. with 1.5v dram you may need some active cooling on the ram sticks for daily use.

 

[sd_dracula]

Yeah trying those now. Will try just upping the IO and SA voltages first see how it works, I think 1.45v for the DRAM is fine as the Samsung 4000mhz profile preloaded in the BIOS pretty much sets all three to 1.45v

 

[sd_dracula]

So far so good @ 4000 with 1.5 dram/1.4 SA/1.3 IO thanks
Only question is is there a point to up these when 1.45/1.25/1.25 works fine @ 3900, doubt I will see any real difference and temps would be a bit lower I'm guessing

 

[robiatti]

So far so good @ 4000 with 1.5 dram/1.4 SA/1.3 IO thanks
Only question is is there a point to up these when 1.45/1.25/1.25 works fine @ 3900, doubt I will see any real difference and temps would be a bit lower I'm guessing

You could try lowering each one by 1 tick at a time. Just do one type at a time though, IE SA from 1.4 to 1.35 check for stability... if stable drop it to 1.3 etc.. Then continue with a different voltage, like dram.

 

[113802]

So far so good @ 4000 with 1.5 dram/1.4 SA/1.3 IO thanks
Only question is is there a point to up these when 1.45/1.25/1.25 works fine @ 3900, doubt I will see any real difference and temps would be a bit lower I'm guessing

Once you find the stable frequency start to bring down tRFC.