AMD ddr5 on intel cpu

[neves.antonio]

Hi. Stupid question:

Bought a pc with a 13600k/z790 aorus elite ax. The sticks are corsair ddr5 6000 for amd and came loaded with the expo profile. I switched it to one of the xmp preloaded profiles on the mb bios for hyenix with similar timings (lower numbers 40-40-40-86 vs 44-44-44-96) both at 6000mhz and lower voltage. (1.25 xmp vs 1.4 expo )
Performance in aida64 is very similar. Like 87000 vs 89000. That ok? I mean lower voltage better right?

 

[ir_cow]

You can use the EXPO profile too. It's a open standard. If your MB see it, than it is it supported.

 

[neves.antonio]

You can use the EXPO profile too. It's a open standard. If your MB see it, than it is it supported.

I just assumed it would be better to use a xmp profile instead of the expo since i have a intel cpu. Isnt the voltage 1.4v in the expo too high?

 

[Onasi]

You haven’t mentioned the amount of RAM your kit has, but no, 1.4v is quite common and expected for high capacity DDR5 kits. Some medium capacity too. Seems like Hynix chips like the voltage, from what I gather. You can look up the reviews here on TPU and see for yourself. It’s fine. No respectable manufacturer will create a profile that can damage your sticks.

 

[ir_cow]

numbers 40-40-40-86 vs 44-44-44-96) both at 6000mhz and lower voltage. (1.25 xmp vs 1.4 expo )

XMP or EXPO voltage of 1.4V is fine if that is in the profile. But I don't know of any kit that is DDR5-6000 44-44-44-96 @ 1.4V. Whats the model number?

 

[neves.antonio]

XMP or EXPO voltage of 1.4V is fine if that is in the profile. But I don't know of any kit that is DDR5-6000 44-44-44-96 @ 1.4V. Whats the model number?

Youre right:

VENGEANCE® 32GB (2x16GB) DDR5 DRAM 6000MT/s C36 AMD EXPO Memory Kit

Deliver the higher frequencies and greater capacities of DDR5 RAM technology in a high-quality, compact DDR5 memory module that suits your AMD® Ryzen™ AM5 system.

www.corsair.com

40-40-40-77

But the bios expo profile says 36-44-44-96 at 1.4v

The xmp hynix one in bios is 40-40-40-80 not 86 sorry. Theres 2 listed: 1.25v and 1 35v.

Which one is better?

 

[Onasi]

It means that you are fine. The link is to an overall page for Vengeance kits and the Corsair site is a mess, but that’s fine. You can use either of the profiles if they are successfully registered by the board. Use whichever gives you better performance. In this case, I would think the EXPO one would be superior, although the difference should be minimal, to be honest. So you can safely use the XMP if the voltage is uncomfortable for you for some reason. It shouldn’t be, though.

Edit: Actually, could you post the full model if you still have the packaging for the sticks? That might narrow it down.

 

[P4-630]

The xmp hynix one in bios is 40-40-40-80 not 86 sorry. Theres 2 listed: 1.25v and 1 35v.

I got a Corsair Dominator Platinum kit DDR5 6000 36-38-38-76 @ just 1.25V SK Hynix.

 

[neves.antonio]

It means that you are fine. The link is to an overall page for Vengeance kits and the Corsair site is a mess, but that’s fine. You can use either of the profiles if they are successfully registered by the board. Use whichever gives you better performance. In this case, I would think the EXPO one would be superior, although the difference should be minimal, to be honest. So you can safely use the XMP if the voltage is uncomfortable for you for some reason. It shouldn’t be, though.

Yeah site isnt the best. But its a 32gb kit 2x16gb sticks. Ok cool thanks. I noticed the temps at 1.4v are 29c idle and 1.25 is 22c idle. Perf wise numbers were similar in aida64. Sligthly better on expo iirc. I just read somewhere 1.4v was bad and used a lower voltage profile just cause. No knowledge on ram whatsoever as you prolly got by now. If you say its all in my head ill switch back to expo thanks. Just wanted a sanity check if this was ok or def send back and get intel kit.

 

[Onasi]

Okay, wait, this doesn’t seem right. There IS a CMK32GX5M2D6000Z36, but according to its specs it should run 36-36-36-76 at 1.35v. So… either the model is wrong, Corsair did a switcheroo over time or the board is downclocking (well, downtiming) the profile, if that’s even possible?
I am still not convinced there is even an issue, I am just also a bit confused now.

 

[neves.antonio]

Okay, wait, this doesn’t seem right. There IS a CMK32GX5M2D6000Z36, but according to its specs it should run 36-36-36-76 at 1.35v. So… either the model is wrong, Corsair did a switcheroo over time or the board is downclocking (well, downtiming) the profile, if that’s even possible?
I am still not convinced there is even an issue, I am just also a bit confused now.

Should i edit the expo to the timings you said at 1.35?

 

[P4-630]

Should i edit the expo to the timings you said at 1.35?

Why not try 1.25V?

 

[Onasi]

Oh god, no. No.
I am once again asking for your financial support the model number. The simplest way is to download CPU-Z, go to the SPD tab and post a screenshot like P4-360 did in a post above. There we will see both the model and all the profiles. This will, or should, put the matter to rest.

 

[neves.antonio]

Oh god, no. No.
I am once again asking for your financial support the model number. The simplest way is to download CPU-Z, go to the SPD tab and post a screenshot like P4-360 did in a post above. There we will see both the model and all the profiles. This will, or should, put the matter to rest.

 

[Onasi]

Yeah, this checks out. The model in the link earlier was wrong. That was Rev. D. This, which is Rev. E, on the other hand, is all to spec. You are gucci. Put it into EXPO and forget about it. All is fine.

 

[ir_cow]

CMK32GX5M2E6000Z36

https://www.newegg.com/corsair-32gb/p/N82E16820982114

Enable EXPO and go!

 

[neves.antonio]

Yeah, this checks out. The model in the link earlier was wrong. That was Rev. D. This, which is Rev. E, on the other hand, is all to spec. You are gucci. Put it into EXPO and forget about it. All is fine.

10-4 thanks.

 

[P4-630]

No idea why it needs to run at 1.40 V with those timings though...

 

[ir_cow]

No idea why it needs to run at 1.40 V with those timings though...

probably for a wider binning. Lower voltage means stricter binning. That is my best guess. Could just be low grade Hynix M-Die. they do need a lot of voltage when you go up in freq and lower timings.