DDR5

[testcy]

Does DDR5 advertised as AMD EXPO profile ready work on motherboards with Intel chipsets and does DDR5 advertised as Intel XMP ready work on motherboards with AMD chipsets? Why DDR5 is not ready for both profiles?

[TylerD321]

From what I’ve seen, expo and xmp ram usually work interchangeably. It is just moreso guaranteed to work for the advertised ram overclocking system. I wouldn’t deliberately buy Intel certified for amd, but it’s worth a shot to try if you accidentally bought the “wrong” one.

[PDifolco]

IMO as AM5 is very finicky with RAM OC you should rather get an EXPO kit with them, but using EXPO on Intel (which manages it much better) should be no issue

[dilpickle]

These days I stick to the QVL list from the mobo. RAM in general has become very finicky in recent times.

[RONOTHAN##]

17 minutes ago, testcy said:

Does DDR5 advertised as AMD EXPO profile ready work on motherboards with Intel chipsets and does DDR5 advertised as Intel XMP ready work on motherboards with AMD chipsets?

Yes and no. Yes the RAM itself works on those platforms, for whether the profile actually enables though is a different story. Motherboard manufacturers need to put in some BIOS optimizations for XMP to work on AMD and for EXPO to work on Intel, sometimes they do and sometimes they don't. As someone who does run an EXPO kit on Intel, there are 2 different BIOS revisions where turning on EXPO will cause the system to fail to POST, and the same thing is true on AMD systems with XMP. Most of the newer BIOS revisions should get it to work. 

 

21 minutes ago, testcy said:

Why DDR5 is not ready for both profiles?

Kingston I know for sure does, and I think TeamGroup does as well, put both XMP and EXPO profiles on their memory sticks. Some manufacturers do that, others like G.Skill do not. 

 

2 minutes ago, PDifolco said:

but using EXPO on Intel (which manages it much better) should be no issue

It still can be if the board doesn't implement it properly. My Unify-X on two of the earlier BIOS revisions won't work with EXPO enabled at all. Most boards have fixed it nowadays, but it's not a guarantee. 

[testcy]

Would CL30 6000MHZ or CL32 6400MHZ DDR5 work at these speeds without overclocking?

[RONOTHAN##]

1 minute ago, testcy said:

Would CL30 6000MHZ or CL32 6400MHZ DDR5 work at these speeds without overclocking?

Technically no, anything that requires enabling XMP/EXPO and/or going above the base advertised speed of the CPU (on AMD that's 5200, on 12th gen and the 13th gen locked i3 and i5 is 4800, and on most of 13th gen it's 5600) is by definition overclocking. If you mean without manual tuning to get them to work, 6000 CL30 should work on everything, and 6400 CL32 should work on Intel 13th gen pretty reliably. 

[testcy]

5 minutes ago, RONOTHAN## said:

Technically no, anything that requires enabling XMP/EXPO and/or going above the base advertised speed of the CPU (on AMD that's 5200, on 12th gen and the 13th gen locked i3 and i5 is 4800, and on most of 13th gen it's 5600) is by definition overclocking. If you mean without manual tuning to get them to work, 6000 CL30 should work on everything, and 6400 CL32 should work on Intel 13th gen pretty reliably. 

Is it possible to disable XMP or EXPO profile and manually tune these speeds?

[RONOTHAN##]

Just now, testcy said:

Is it possible to disable XMP or EXPO profile and manually tune these speeds?

Yes. On the current BIOS revisions for my Unify-X, EXPO does actually work, but it's permanently disabled because the kit can run much more better settings than what the EXPO kit specifies. Same thing is possible for XMP or EXPO on AMD, you don't need to use it and can manually setup your RAM instead. 

 

These profiles are just to give you a one-click setup for settings that your RAM is capable of. There's no reason (excluding OEM boards) that you actually need to use it and can't just input everything manually or try to run better settings that what is advertised. 

[testcy]

3 hours ago, RONOTHAN## said:

Kingston I know for sure does, and I think TeamGroup does as well, put both XMP and EXPO profiles on their memory sticks. Some manufacturers do that, others like G.Skill do not.

I can only find G.SKILL DDR5 at those speeds, but either XMP or EXPO profile ready. What DDR5 from other manufacturers is ready for both profiles?

[RONOTHAN##]

2 hours ago, testcy said:

I can only find G.SKILL DDR5 at those speeds, but either XMP or EXPO profile ready. What DDR5 from other manufacturers is ready for both profiles?

ADATA and corsair might, though again the only one I know for sure is Kingston. 

[Ebony Falcon]

I don’t no why they cant put 2 profiles on a chip one for each 

 

or just make a ocp that runs on both

[testcy]

8 hours ago, RONOTHAN## said:

ADATA and corsair might, though again the only one I know for sure is Kingston. 

What Kingston DDR5 exactly?

[RONOTHAN##]

12 hours ago, Ebony Falcon said:

I don’t no why they cant put 2 profiles on a chip one for each 

 

It's 100% possible. The EXPO profile and XMP profiles are stores in opposite sides of the SPD so they wouldn't overlap, and there are a couple kits that do it. 

 

4 hours ago, testcy said:

What Kingston DDR5 exactly?

There are a bunch out there, this is one for instance:

KF560C36BBEK2-32

 

There are XMP specific offerings from them, and EXPO/XMP specific offerings, depending on when the kit released and whether it has an XMP profile capable of running on AMD systems. 

[testcy]

1 hour ago, RONOTHAN## said:

There are a bunch out there, this is one for instance:

KF560C36BBEK2-32

 

There are XMP specific offerings from them, and EXPO/XMP specific offerings, depending on when the kit released and whether it has an XMP profile capable of running on AMD systems. 

This is CL36 6000MHZ and I am looking for either CL30 6000MHZ or CL32 6400MHZ. I don't see anything faster on their website that is ready for both profiles.

[RONOTHAN##]

5 hours ago, testcy said:

This is CL36 6000MHZ and I am looking for either CL30 6000MHZ or CL32 6400MHZ. I don't see anything faster on their website that is ready for both profiles.

Again, it's not only Kingston that has kits like this, Corsair also has some. 

https://www.newegg.com/corsair-32gb/p/N82E16820236909?quicklink=true

 

You just need to find kits that have EXPO and XMP on their product page.