AMD EXPO not working X670e and G.skill Memory!

[zanatos]

Hi,

My last 2 years with ZEN 4 have been terrible! I just changed my MOBO from X670E Extreme to X670e Aorus Pro X!
i have these 4 DIMMS of ram from G.skill
F5-6000J3636F16GX2-TZ5NR)
36-36-36-96 !

I have had difficulties launching AMD EXPO with X670E and it worked randomly (depending on the BIOS). had to do my fair of CLEAR CMOS but i had found a balance until my MB died!

Now with AORUS PRO X i cannot even seem to make it work! It will BOOT once but only once and then i need to CLEAR CMOS!
At the moment my RAM speed is stuck at 3600Mhz and not at 6000Mhz!
I am going to write at GIGABYTE to get help to put the settings manually!
Any advice on how to make it work and stick? any advice i will hapily accept.
I am even ready to put all the settings manually!

Thank you in advance

 

[Llun]

Just use 2 DIMMS... 4 DIMMS puts too much pressure on the memory controller...

 

[Kapone33]

2 DIMMs are also much stabler at the timings you have listed. You might have to run at 4800 to get those tight stable.

 

[Chomiq]

DDR5 4 dimms on am5 -- what's working, what's not?

Are you running 4 dimms on the AM5 platform? What about LGA1700? Post a pic and details of your setup! Background I’ve been testing the new VSOC/agesa changes from AMD and 48gb dimm support. I am happy to report 96gb @ DDR5-6000 (2x48gb) is working great! I’ll have a video about that soon...

forum.level1techs.com

Might wanna look in here.

 

[ir_cow]

4 DIMMs is your problem. Officially DDR5-3600 is the highest supported by AMD for 4x. Dump two and see if it works. Once you established that both kits work. Start at 4800 and work your way up until 6000. Might have to manually set the SoC and IMC voltage.

 

[Space Lynx]

4 DIMMs is your problem. Officially DDR5-3600 is the highest supported by AMD for 4x. Dump two and see if it works. Once you established that both kits work. Start at 4800 and work your way up until 6000. Might have to manually set the SoC and IMC voltage.

Unless the 4 DIMMS is QVL for that mobo and rated speed, if its not QVL though, gg

My B650 board allows for 4 dimms at 5200 speed, EXPO, only like 2 or 3 kits it supports for all 4 dimms though. I feel like not enough people check their QVL list, it makes life easier.

 

[Gmr_Chick]

Unless the 4 DIMMS is QVL for that mobo and rated speed, if its not QVL though, gg

My B650 board allows for 4 dimms at 5200 speed, EXPO, only like 2 or 3 kits it supports for all 4 dimms though. I feel like not enough people check their QVL list, it makes life easier.

QVL's aren't gospel though - my GSkill Trident Z5 Neo kit tended to work just fine at its rated 6000 EXPO speed on my Aorus Master, but can't run it on my Strix X670E-A even though the kit is on the QVL for that board. Gotten to the point where I said "screw it" and bought a kit of Kingston Fury Beast for testing.

So yeah, even if a kit is listed on a QVL, there's so many variables involved (your system vs. the motherboard manufacturer's system) that I find QVL's to be largely pointless and only existing for the sake of Asus, MSI, Gigabyte and ASRock being able to tell a customer that they're "doing something wrong" when it comes to being able to POST at rated EXPO speeds, because Memory Kit X worked just fine/POSTed at EXPO speed when they tested it.

 

[ShrimpBrime]

Hi,

My last 2 years with ZEN 4 have been terrible! I just changed my MOBO from X670E Extreme to X670e Aorus Pro X!
i have these 4 DIMMS of ram from G.skill
F5-6000J3636F16GX2-TZ5NR)
36-36-36-96 !

I have had difficulties launching AMD EXPO with X670E and it worked randomly (depending on the BIOS). had to do my fair of CLEAR CMOS but i had found a balance until my MB died!

Now with AORUS PRO X i cannot even seem to make it work! It will BOOT once but only once and then i need to CLEAR CMOS!
At the moment my RAM speed is stuck at 3600Mhz and not at 6000Mhz!
I am going to write at GIGABYTE to get help to put the settings manually!
Any advice on how to make it work and stick? any advice i will hapily accept.
I am even ready to put all the settings manually!

Thank you in advance

Believe the comments above ^^

I have the same kit. Rock em' 6800mhz CL38 daily. But with only 2 sticks. They should do up to 6400mhz 1.4v 36-36-36 though. Samsung die.

Update the bios would be your only shot, but you'll probably come back and say you did that already.
_____
**Besides that.....

What do you mean ROG X670E Died?!?!?
You RMA that board!! It's a Fkn 600$ mainboard!!
And probably arguably one the most difficult to "kill" or just "die" with the simple regular use.
And you replaced it with a 300$ ranged model instead and expect it to work??
The ROG would had been more likely to support 4 dimms with a higher frequency than 5600mhz.

What is the world coming too???

DDR5 4 dimms on am5 -- what's working, what's not?

Are you running 4 dimms on the AM5 platform? What about LGA1700? Post a pic and details of your setup! Background I’ve been testing the new VSOC/agesa changes from AMD and 48gb dimm support. I am happy to report 96gb @ DDR5-6000 (2x48gb) is working great! I’ll have a video about that soon...

forum.level1techs.com

Might wanna look in here.

Eww no way. This thread is scary low performance.

 

[Sarajiel]

i have these 4 DIMMS of ram from G.skill
F5-6000J3636F16GX2-TZ5NR)
36-36-36-96 !

Have you checked the batch numbers for both kits? You can find them on the back of each stick above the barcode, below the SKU number. Ideally, all four sticks should be from the same batch.

I suspect that you don't have matching kits, because this SKU can either come with Samsung or Hynix ICs. If that's the case, you basically have to live with the fact that 4 sticks most likely won't work. You can try to populate each kit into a separate memory channel, which usually helps with mismatched kits, but that will probably need manually tuning to work reliably at 6000MT/s.

Also avoid the F32 beta BIOSes for the X670E Pro X, if I remember correctly, Gigabyte broke the high voltage mode on those. No idea, if these versions have other memory related issues, though.

 

[ir_cow]

@Sarajiel good catch. I just assumed they were the same since the timings are. It would be odd otherwise not be be Hynix A-Die

 

[ShrimpBrime]

@Sarajiel good catch. I just assumed they were the same since the timings are. It would be odd otherwise not be be Hynix A-Die

Z5 A-Die is CL30 at 6000mhz. CL36, it's probably Samsung.

 

[ir_cow]

Z5 A-Die is CL30 at 6000mhz. CL36, it's probably Samsung.

Ohh I misread it as 30-36-36. Yeah I would agree Samsung for 36-36-36

 

[zanatos]

how to make it 4800 Mhz?

also what to do? lose 2 DIMMS?

 

[Sarajiel]

also what to do? lose 2 DIMMS?

Short answer: Yes, only use 2 memory sticks

how to make it 4800 Mhz?

Long answer: Give us some more information about your system!

- What BIOS version are you on? (You should at least be on F30 or F31)
- Do the EXPO profiles actually work at 6000MT/s if you only use one kit?
- Post the batch number(s)/lot code of your memory sticks to give us an idea what might be the technical problem. (The last five digits should look something like "S82*M" or "S81*B" at the end.)

It would be odd otherwise not be be Hynix A-Die

it's probably Samsung.

You guys are aware of EXPO self-certification reports? G.Skill literally states that this kit can come with either Samsung or SK Hynix ICs.

 

[ShrimpBrime]

You guys are aware of EXPO self-certification reports? G.Skill literally states that this kit can come with either Samsung or SK Hynix ICs.

I have the kit of memory, 36-36-36 is Samsung dies and the CL30 kits are Hynix usually A-Die. Same memory kit part number, you have to look at the timing sets to be clear before purchase.

And I am NOT aware of EXPO, mine are an XMP profile kit. Maybe your AMD rigs call it something else?

Running 4 sticks at 4800mhz frequency is so poor performance, it's not worth bother trying. He's currently stuck at 3600mhz, in the realm of DDR4 but with double the latency.

 

[Sarajiel]

Same memory kit part number, you have to look at the timing sets to be clear before purchase.

And I am NOT aware of EXPO, mine are an XMP profile kit. Maybe your AMD rigs call it something else?

Part of AMD’s EXPO spec is the so-called "AMD EXPO Self-Certification Report" which the manufacturer of your memory kit is supposed to publish, and which G.Skill typically does on their website as a PDF. In these reports, besides other things, the manufacturer is supposed to disclose all the possible IC manufacturers that are used for a given SKU. In case of the memory kit, the OP linked, these are Samsung and SK Hynix. You can check it out on G.Skills website.
Intel doesn't include the IC disclosure for the XMP spec, therefore you don't get a hint from the manufacturer unless they use the type of die for marketing purposes like some of the smaller Chinese manufacturers do.
Sadly, most large manufacturers aren't keen to have different SKUs for each die variant, therefore they typically don't disclose the specific die of a given memory IC for consumer products. That's mostly because a large manufacturer like G.Skill, Corsair or Kingston usually buys from different suppliers. Some manufacturers like Corsair and many smaller ones can't even be arsed to publish a self-certification report, even if the kit comes only with EXPO profiles.

That said, most of those big memory manufacturers encode the specific die of each memory stick within the batch or lot number that is printed on the label of each memory stick. You don't have to guess the die of your stick from above-mentioned manufacturers once you hold them in your hands.
In the case of G.Skill this lot number is usually printed above the barcode of the label. For DDR5, the last five digits tell you what's soldered onto the PCB, e.g. "S82*A" would be your 16Gb (S2) Hynix (2) A-die (A). The number at the * position is irrelevant.

A DDR5-6000 36-36-36 kit could be pretty much anything, even newer Micron.

Running 4 sticks at 4800mhz frequency is so poor performance, it's not worth bother trying. He's currently stuck at 3600mhz, in the realm of DDR4 but with double the latency.

Yeah, the OP probably bought their 4x 16GB setup for the looks, but it surprises me that it won't do at least 4800MT/s. I easily booted 128GB Hynix A-die from Kingston on my Aorus X670E Pro X at 5600MT/s just by enabling EXPO on the ancient F20 BIOS with auto settings.

Either the OP has mismatched kits, or Samsung is absolutely horrible, or the memory controller of his CPU is an absolute potato. Even 4x 16GB Hynix M-die should boot at 4800 or 5200 MT/s as SPD default on a newer BIOS.

 

[zanatos]

Hi,

UPDATE & ANSWERS TO QUESTIONS:

- Tried to run 3 DIMMS at EXPO - FAIL it didn't even BOOT!
- Rearranged the DIMMS! DIMM 1 and 3 definetely samsung
- will try to rearrange DIMMS and try EXPO again
- BIOS version F31
- Used GIGABYTE MEMORY BOOST and now running at 5000MHz - STABLE! and to be frank i will take the extra 1400MHZ even if i cannot get it at 6000MHZ
- Yes bought them for the looks!\
- Had an issue at first (with first MOBO) with 2 DIMMS! do not think it is the memory what about the Memory COntroller of the CPU?
- i have the SKU will upload pictures
- have not tried 1 or 2 DIMMS with my current setup! losing 2 DIMMS is a bit too much (IMO)
- part number 0T48AXS810B all 4 of them same

So i am keeping this win at 5000MHZ! now let us try to find a way to get even more Mhz!

 

[Sarajiel]

- part number 0T48AXS810B all 4 of them same

That means, all of them are Samsung B-die. At least that means you have a chance to make it work better than 3600MT/s.

- Tried to run 3 DIMMS at EXPO - FAIL it didn't even BOOT!

It's either 2 or 4 DIMMs with DDR5.

do not think it is the memory what about the Memory COntroller of the CPU?

This could be an issue. I’ve never tried 4x Samsung.

How much Vsoc does the board use at 5000MT/s? Do you maybe have a ZenTimings screenshot?

 

[ShrimpBrime]

Hi,

UPDATE & ANSWERS TO QUESTIONS:

- Tried to run 3 DIMMS at EXPO - FAIL it didn't even BOOT!
- Rearranged the DIMMS! DIMM 1 and 3 definetely samsung
- will try to rearrange DIMMS and try EXPO again
- BIOS version F31
- Used GIGABYTE MEMORY BOOST and now running at 5000MHz - STABLE! and to be frank i will take the extra 1400MHZ even if i cannot get it at 6000MHZ
- Yes bought them for the looks!\
- Had an issue at first (with first MOBO) with 2 DIMMS! do not think it is the memory what about the Memory COntroller of the CPU?
- i have the SKU will upload pictures
- have not tried 1 or 2 DIMMS with my current setup! losing 2 DIMMS is a bit too much (IMO)
- part number 0T48AXS810B all 4 of them same

So i am keeping this win at 5000MHZ! now let us try to find a way to get even more Mhz!

Don't need pictures. Just open cpu-z and click spd tab. It will tell you what memory is installed.

It's ikely Samsung B-Die. Which with a lot of the older now (2021) DDR5 had straight timings like the DDR4 kits such as 16-16-16 or lower speeds 3200mhz 14-14-14. Samsung is infamous for that with their B-Dies, running straight timings.

Edit: could try CL38-38-38 and see if you can get more frequency, which is what you want first for DDR5 platforms. Bandwidth baby!!

Any DDR5 system should have a goal of 100Gb/s read speeds.

 

[ir_cow]

Part of AMD’s EXPO spec is the so-called "AMD EXPO Self-Certification Report" which the manufacturer of your memory kit is supposed to publish, and which G.Skill typically does on their website as a PDF.

Can I have a link? I seen many spec sheets for memory, but I don't recall ever seeing the IC manufacturer listed.

Edit: nvm I found it. https://www.gskill.com/_upload/files/F5-6000J3636F16GX2-TZ5NR.pdf . It Says either Hynix or Samsung.

I also like how G.SKILL didn't put anything in the extra EXPO settings. So basically its just XMP with a EXPO slapped on it. Based on this report that is.

 

[Gmr_Chick]

My test kit came a couple days ago. Went into BIOS, set the EXPO profile -- and was surprised to see a 2nd profile rated for 5600MT/s, which my GSkill kit lacked -- and baby booted into Windows without a hitch! Not to mention Kingston did a great job with the RGB. It's so BRIGHT!

So it looks like this test kit is now permanent. Couldn't be happier! Here's a screenshot from HWInfo for reference:

KF560C30BBEAK2-32 is the product number listed on Amazon.​

My GSkill kit was Samsung, but I can't remember if the die was listed in HWInfo or not. I'm guessing it was probably B-die though, which was great for AM4.... Not so much for AM5 though.

 

[LittleBro]

X670E AORUS PRO X Support | Motherboard - GIGABYTE Global

Lasting Quality from GIGABYTE.GIGABYTE Ultra Durable™ motherboards bring together a unique blend of features and technologies that offer users the absolute ultimate platform fo...

www.gigabyte.com

* 2 DIMM: One pair of memory modules installed into the paired of slots will enable Dual-Channel memory configuration. Please install the memory modules into slot of DDR5_A2, DDR5_B2 for best compatibility and performance.

* Speed dropping policy according to AMD processor specification (EXPO/XMP disabled):
- Drops down to DDR5-5600 when 2 DIMMs of the same channel are installed e.g., DDR5_A1 / _A2. Please adjust your setup according to the recommendation as above.
- Drops down to DDR5-3600 when 4 DIMMs are installed.

* When running EXPO/XMP at DDR5-5600 or higher, the system's stability may vary by AMD processor and memory module's margin of capabilities.

* When running EXPO/XMP at DDR5-6000 or higher, the memory performance gain may not be proportional due to AMD processor current architecture limitation.

* When enabling Dual-Channel mode with two or four DDR5 memory modules, it is recommended that using the same capacity, brand, speed, and chips of memory modules.

* Memory modules listed above is for reference only. Due to massive memory models in market, we would try to verify as many as possible.

 

[Speedyblupi]

It's possible that you will be able to get 4 sticks stable at DDR5-6000 speed by adjusting settings. It's not guaranteed, but there are a few things that could be worth trying.

On some motherboards, either reducing or increasing the On-Die Termination resistance (ProcODT) can improve memory stability. My motherboard's RAM is unstable at default settings, but it works great with ProcODT set to 28Ω (significantly lower than default or what's usually recommended).
Slightly increasing the voltage of the memory controller (on Ryzen, this is SoC Voltage), memory I/O (VDDIO or IO Voltage), and/or the RAM itself (VDIMM/VMEM) will often help. I personally wouldn't set SoC voltage to more than 1.35V (most AM5 BIOSes have a hard SoC voltage limit of 1.3V, so this is usually safe to max out, though there are some exceptions), or IO to more than 1.3V. Safe RAM voltage depends on what specific RAM chips are used on your kit; some DDR5 chips can handle 1.6V without any risk of degrading (though it's very unlikely you'll need to set them that high for DDR5-6000, and the RAM will run cooler at lower voltage. There is a trade-off between high voltage, which increases stability; and high temperature, which decreases stability), but some others aren't safe above 1.4V.

 

[PenguinBelly]

You definitely can get 4 sticks to work. I had been running 4x16GB at 6000 with a 7700X for over a year without a hitch and only recently upgraded to 2x48GB. And those 4 sticks were not even of same ICs. 2 Hynix + 2 Samsung.

IIRC, one subtiming value that I had trouble with was tRFC. Commonly you see values lower than 500 with 2 sticks, but with 4 sticks I needed to set it over 900.