Intel 12th Gen CPUs (Alder Lake) ... Intel Core Ultra (Arrow Lake) DDR5 support

RemusM

RemusM

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Because we get more and more complaints on this subject:
the memory speed limitation has nothing to do with the motherboards and memory modules.
It's all about the CPU IMC.

This is the official DDR5 support for most of the top Arrow Lake CPUs (Ultra 9 285K, Ultra 7 265K, Ultra 5 245K, etc):

Arrow_Lake.png


MEG-Z890-ACE.png



This is the official DDR5 support for most of the top Raptor Lake CPUs (Core i9-14900K, Core i9-13900K, Core i7-13700K, etc):

Processor_SKU_Support_Matrix.png


Intel_13th_DDR5.png


This is the official DDR5 support for most of the top Alder Lake CPUs (Core i9-12900K, Core i7-12700K, etc):
Intel_DDR5.png

Anything faster is not guaranteed to run (stable).
As you can see, there is a significant speed limitation in case of 4 memory modules.

Now let's take a look at MSI's flagship MEG Z690 Godlike:
MSI_Z690_DDR5.png

You will notice the same limitation in case of 4 memory modules (single and dual rank both): 4000MHz.

Also be aware of this rule: more memory you have, lower speed you'll get.
So don't expect a great stability above 5600MHz in case of 128 or 192GB memory.
 
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Good afternoon. Motherboard z790 edge wifi ddr5 ,13700kf,ddr5 tforce 6800mhz. The memory does not work at this frequency, sometimes it starts up 1-2 times and errors appear, after that it does not start at all.
 
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Thank you for the information here.
I'm about to make a new rig with z790 Carbon, and i9 13900k or 14900k CPU.
It's for video editing and occ games. Which 64gb DDR memory is recommended? I want stability first.
I thought a two sticks configuration of something from:
2x32gb 4800MHz
2x32gb 5600MHz
2x32gb 6000MHz

Unless I'm picking up the guides wrong it sounds like if I pick a faster rated pair, it might not run, which sounds bizarre to my uneducated ears.
 
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billy from Consett said:
Thank you for the information here.
I'm about to make a new rig with z790 Carbon, and i9 13900k or 14900k CPU.
It's for video editing and occ games. Which 64gb DDR memory is recommended? I want stability first.
I thought a two sticks configuration of something from:
2x32gb 4800MHz
2x32gb 5600MHz
2x32gb 6000MHz

Unless I'm picking up the guides wrong it sounds like if I pick a faster rated pair, it might not run, which sounds bizarre to my uneducated ears.
Click to expand...

Intel guarantees 2x32GB at 5600 and 1.1V for those CPUs.
But 2x32GB DDR5-6000 at 1.35V is a very good (and safe) option and well.
You can find many DDR5-5600 and DDR5-6000 2x32GB kits here: https://www.msi.com/Motherboard/MPG-Z790-CARBON-WIFI/support#mem
G.SKILL, Corsair and Kingston are known good choices for MSI motherboards.
 
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RemusM said:
Intel guarantees 2x32GB at 5600 and 1.1V for those CPUs.
But 2x32GB DDR5-6000 at 1.35V is a very good (and safe) option and well.
You can find many DDR5-5600 and DDR5-6000 2x32GB kits here: https://www.msi.com/Motherboard/MPG-Z790-CARBON-WIFI/support#mem
G.SKILL, Corsair and Kingston are known good choices for MSI motherboards.
Click to expand...
I went for a Z790 Carbon with an i9 14900k CPU and 2x sticks of 32gb DDR5 Corsair Vengeance RGB 6000MHz CL30 Intel XMP memory totalling 64gb.
Got the Corsair 850 RM850x power supply.
My graphics card is an RTX 2080 Super running two monitors (one display port and one HDMI) which I use for mainly movie editing with the latest Premiere Pro.
It has an Arctic II 360 AIO CPU liquid cooler sitting in a Phanteks P600s case.
There are three 1TB M.2 storage drives - A crucial T500 Gen 4 system drive and 2 ADATA M.2 Gen 3 drives plus a couple of 1TB Samsung SSD's.

There doesn't seem to be an optimised Z790 Carbon bios setup Youtube video, so I'll set the memory to XMP and try that. I haven't tried any of the CPU stress tests yet or tried an MSI CPU lite bios setting to get a reasonable performance / not boiling the CPU outcome.

I'm wondering if I should use the motherboard HDMI to drive one of the monitors - main or secondary - and any BIOS tuning to keep the CPU as cool as is reasonable. I'll try the Adobe forum on that one.
 
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@RemusM - Question, for as much as motherboards and CPU's cost these days if your buying a Godlike board and an i9, why couldnt they offer quad channel? I know you have to have more traces to the memory PCB and would cost a little more to manufacture. Were already paying the premium, why not offer it?
 
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mostwanted1235154c02e1 said:
@RemusM - Question, for as much as motherboards and CPU's cost these days if your buying a Godlike board and an i9, why couldnt they offer quad channel?
Click to expand...

You should ask Intel this question :biggrin:
Talking about memory, if the BIOS is not buggy, the motherboard is almost irrelevant.
The memory modules are connected directly to CPU (IMC).
And all the Intel socket 1700 CPUs (Gen 12, Gen 13 and Gen 14) have dual-channel memory controller.
Also, DDR5 is a terrible choice for quad-channel.
And that's because each DDR5 module contains 2 sub-channels.
So for quad-channel, the CPU IMC would be overloaded with 8 sub-channels,
that leading to very low performances (speeds in the 3200-3600 range).

P.S.
The last quad-channel Intel CPU was a Gen 10 one (Core i9 10980 XE).
 
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Hi, I'm a complete noob to this.

I've got the H160M-G (MS-7D46) Motherboard, MSI states I can get up to 64gb ram at 5600Mhz, I went a bought 32gb 6000Mhz knowing I could set to 5600MHZ.
However the XMP in my Bios won't let me enable this, all I have to choose from is Disable, Profile 1, Profile 2, Profile 3.

I can't find anyone with the same bios as me, it is a Click 5 bios ( everyone else has the same name but it's a different layout and style ) it's just a version I can not locate same as everyone else, Is there away to enable the XMP for me to get that 5600Mhz or am I stuck at 4800Mhz?


I have attached the CPU Z of my mobo.
Any help will be very welcome,
Thanks all.
Screenshot 2024-04-26 102346.png
 
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Hi, I have a Z690 MEG ACE, used to have a 12900KS and some 2x16Gb, 6400 Vengeance RGB (32-40-40), the XMP was a no go but with some OC I have managed to get them stable at 30-37-37, same 6400.
Lately I got tired of doing OC (and lazy) so I've upgraded to a 14700KF and some nice 2x16gb white Adata (AX5U6400C3216G-DCLARWH), just wanted to make sure this XMP will run flawlessly.
Thing is it won't.
I got some random restarts of the PC (reset) even in idle.
Whith the previous bios even like 2 / day although tested with Karhu Ram Test and I was stable for over 10000% or over 2h test.
Now with the last bios I was stable reset free for like a week (almost) then I got one.
I can downclock to 6200 and is super stable but I'd like to finally see it stable in XMP (6400) as well, I feel like I'm close.
Anyone have a clue about getting rid of this restarts?
 
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sbucky8152b02d9 said:
I've got the H160M-G (MS-7D46) Motherboard, MSI states I can get up to 64gb ram at 5600Mhz, I went a bought 32gb 6000Mhz knowing I could set to 5600MHZ.
However the XMP in my Bios won't let me enable this, all I have to choose from is Disable, Profile 1, Profile 2, Profile 3.

I can't find anyone with the same bios as me, it is a Click 5 bios ( everyone else has the same name but it's a different layout and style ) it's just a version I can not locate same as everyone else, Is there away to enable the XMP for me to get that 5600Mhz or am I stuck at 4800Mhz?
Click to expand...

H160M-G does not exist.
Probably this one is your motherboard: https://www.msi.com/Motherboard/PRO-H610M-G/Specification
And the Intel H610 chipset does not allow overclocking of any kind.
Most of the DDR5-6000 rated kits are using overclocked and overvolted DDR5-4800 ICs (memory chips).
And those chips are not able to run at 5600 with 1.1V only.
So if you want DDR5-5600 on this motherboard, you need a native DDR5-5600 kit.
In other words, a kit able to run at 5600 with 1.1V only.

P.S.
1) What CPU do you have?
2) Take a CPU-Z screenshot with the SPD tab to see better your memory kit.
 
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CPU: Intel Core 14th Gen 14900K
Motherboard: MSI Z790 Edge TI MAX WiFi
DDR5: CORSAIR DOMINATOR TITANIUM RGB DDR5 RAM 48GB (2x24GB) DDR5 7200MHz CL36 Intel XMP iCUE Compatible Computer Memory
GPU: MSI 4090 Ventus X.

Looks not bad PC gaming configaration but I got so many troubles with 14th gen cpu. Crashes every 30 minutes/blue monitor errors, can't play almost any game. I blown my mind what is goin on? Checked all connectors, all wires, all scruves. Got a headeck for 48 hours. After all this I decidec install back my 12th gen CPU/12600KF and all my issues is gone just headeck left.

Question: Do I need better send back 14th gen CPU to Intel and use 12th Gen? or or... Any advice? Thanks.
 
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