DDR5 Trident Z5 6400 CL32 Memtest errors

[dfernandezg]

Hi all,

I am running a 16x2 Trident Z5 6400 CL32 kit on a ROG z690 Maximus Hero with a 12900K CPU and using XMP profile I.
When I run Memtest64 for a couple hours I start getting errors.
Is there any settings I should tweak or this sticks are just bad?

thanks.

[GSKILL TECH]

Test one at a time to see if one performs differently. Do you have the latest BIOS? Are modules in A2 B2 slots? What settings did you use? You can also try a lower DRAM Frequency to see if it can be more stable. The results should help narrow down possibilities.

[dfernandezg]

Hi,

I am using the lastest version of the motherboard, sticks are in ther 2nd and 4th slot of the MB. lowering down the frequency improves stability, but I didnt buy a 6400 kit to run it at 6000.
Just ordered a new kit, will test it tonight.

[emissary42]

Did you test XMP-2 prior to using XMP-1?
When applying XMP-1 the motherboard ignores part of the programmed timings, so stability depends a lot more upon the DRAM training of the motherboard.

Individual testing of both modules is recommended because it helps to figure out, if there is an issue with a) either module, b) one of the two DIMM slots or c) if the motherboard failed to properly adjust the voltages for your processor. The latter can be easily fixed by adjusting them yourself. The ASUS ROG OC guide has recommendations for that.

In general 1505 was a nice improvement in terms of DRAM training. It improved the overclocking headroom of the Hero with kits like yours considerably.

[dfernandezg]

XMP II didnt boot, I had to adjut some voltages to make it post.
The new kit just arrived and is very stable with XMP I. I did a 2 hour Memtest64 and no errors. I will run it long time this night to be sure.

thanks.

[emissary42]

Sadly MemTest64 is not very useful. It could have been a nice alternative, but the development stopped right after the initial release.

Instead maybe use one of the preconfigured TM5 packages, Karhu RamTest (commercial), GSAT or even the integrated MemTest86 within the UEFI.

[ben1england]

I have a similar issue. When I start running some games, I get a CTD. Could be immediately after loading games or after a 10 - 15 minutes. Disabling XMP helps with the CTD's. Exact same kit!

[Megalamaniac]

I have the exact same setup and couldn't get stable with XMP I or II settings alone. I had to increase my SA and Memory Controller Voltage to 1.25v, and Change from "Sync All PMICs" to "By Per PIMC".

[ben1england]

I have the exact same setup and couldn't get stable with XMP I or II settings alone. I had to increase my SA and Memory Controller Voltage to 1.25v, and Change from "Sync All PMICs" to "By Per PIMC".

Can you explain why it worked? Or did you just test and start flipping options?

[Megalamaniac]

Can you explain why it worked? Or did you just test and start flipping options?

Mainly this video helped, and it's where I got the PMIC setting. https://www.youtube.com/watch?v=1KZFeE-o3jo, but I couldn't tell you why the PMIC Setting helped, except that the controllers are able to operate independently.

There is a pretty decent overclocking guide at the ROG Forums under Z690 Motherboard topic, and helps to explain. But mostly it's trial and error.

there a few decent videos on youtube, just do a search for "asus z690 hero overclocking" and they'll show up.

[ben1england]

Mainly this video helped, and it's where I got the PMIC setting. https://www.youtube.com/watch?v=1KZFeE-o3jo, but I couldn't tell you why the PMIC Setting helped, except that the controllers are able to operate independently.

There is a pretty decent overclocking guide at the ROG Forums under Z690 Motherboard topic, and helps to explain. But mostly it's trial and error.

there a few decent videos on youtube, just do a search for "asus z690 hero overclocking" and they'll show up.

I have to bump it up a little higher. Some memtest pass results show the odd error, but others are looking stable.

I'll post here exactly what I did. It's deffinately a voltage issue with the xmp profile!

I hope Asus can get a xmp profile going in a future bios...

Anyhow, here is what I did:

• Set xmp i
• Cpu system agent voltage - manual 1.35
• Cpu input voltage - 1.9
• Vdd and vddq - 1.435
• Ivr transmitter vddq voltage - 1.435
• Memory controller voltage - 1.35
• Pmic voltage - by per pmic

[Megalamaniac]

I have to bump it up a little higher. Some memtest pass results show the odd error, but others are looking stable.

I'll post here exactly what I did. It's deffinately a voltage issue with the xmp profile!

I hope Asus can get a xmp profile going in a future bios...

Anyhow, here is what I did:

• Set xmp i
• Cpu system agent voltage - manual 1.35
• Cpu input voltage - 1.9
• Vdd and vddq - 1.435
• Ivr transmitter vddq voltage - 1.435
• Memory controller voltage - 1.35
• Pmic voltage - by per pmic

I'm using XMP II, BIOS 1505

• Set XMP II
• Cpu system agent voltage - manual 1.225
• Cpu input voltage - 1.83
• Vdd and vddq - 1.40
• Ivr transmitter vddq voltage - 1.40
• Memory controller voltage - 1.25
• Pmic voltage - by per pmic

Memtest would give me an error or two With SA 1.1v and Memory Controller Voltage 1.25. When I bumped SA to 1.15 the errors stopped, 4 passes less the Hammer test (takes to long), no errors but I would get the odd BSOD every now and again. They stopped when I bumped SA to 1.25. I recently bumped SA down to 1.225 and still stable and another 4 passes no errors.

Here's a video from SkatterBencher. It's long, but very thorough https://youtu.be/fBrlgLZrFaI

[Megalamaniac]

I took a chance and added another 6400 CL32 32g kit for 64g total. I couldn't pass up when I saw them on sale at newegg for $289.

So far I've only been able to boot at 5600 with the same settings. I tried XMP I and bumping up SA 1.25v and mem controller at 1.35v @6400, but no bueno.
I'm going to try and see what settings the new kit will need to get stable at 6400 and go from there after adding the old kit back. I've heard others have gotten two 32g kits to work at 6400, so we'll see.

[ben1england]

Good luck!

I now understand what is going on here.
This particular kit is not yet certified for xmp. It is merely xmp 3.0 ready. There are kits that are xmp 3.0 certified, and will work out of the box when you enable xmp.

Xmp 3.0 ready merely means that no certified xmp profile exists. It will eventually be certified. There is a full list if memory kits that have been xmp 3.0 certified.

[ben1england]

And I am CTD'ing...