XMP 6400 only working for 1 Pair (2/4)

[kfmfe04]

Having trouble with XMP settings for 4 sticks of DDR5/6400: G.Skill 4x32GB.

• HP Omen 45L GT22-1455t PC (i9-13900K)
• DDR5: G.Skill, Series: Trident Z5 RGB, Model: F5-6400J3239G32GX2-TZ5RK

1. On standard settings, I can get 128GB/3600
2. 2 Sticks in slots 2/4, XMP Profile 1 works 64GB/6400

But I cannot get XMP to work for 3 or 4 sticks.

Can you help me by telling me what settings/procedure I should use to get 128GB/6400?

Please advise.

[Bill_To]

Hi @kfmfe04 

Maybe @NonSequitur777 can assist if you are using compatible RAM. This seems to be true since all four sticks yield a successful POST.

Some Retail MBs and OEM MBs have XMP problems when populating all memory slots.

Regards

[NonSequitur777]

@Bill_To,

Thank you for the referral, so to speak.

@kfmfe04, assuming your OMEN By HP 45L Gaming Desktop PC GT22-1000i (6C1R9AV) is fitted with an ArcticOC motherboard (SSID: 8A96) -please verify, according to: https://support.hp.com/gb-en/document/ish_7102302-7102365-16, your PC can be fitted with DDR5 -PC5-41600, 5200 MHz RAM -"for 125 W K-series CPU" -which your i9-13900K would certainly qualify for.

To make a long story short, the general problem with G.SKILL and Corsair (Vengeance) gaming RAM is that they tend to 'stick' to their default or "SPD" (Serial Presence Detect) RAM speed, even as low as 2400 or 2133 MHz.

When we look here: https://www.userbenchmark.com/System/HP-OMEN-by-HP-45L-Gaming-Desktop-GT22-1xxx/292265, it shows without a shadow of a doubt that it is certainly possible to run certain RAM (such as: Kingston 560C40-32 2x32GB or Kingston KF560C36-32 2x32GB) on this platform, all the way up to 6000 MHz (!), such as these HP OMEN by HP 45L Gaming Desktop GT22-1xxx Users proved: https://www.userbenchmark.com/UserRun/63330517, and: HP OMEN by HP 45L Gaming Desktop GT22-1xxx Performance Results - UserBenchmark.

So, my recommendation/suggestion for you is to return your G.SKILL RAM and get your hard-earned money back -if you can, and to consider the aforementioned RAM, or say Crucial RAM: HP - Compaq OMEN 45L GT22-1000 | Memory RAM & SSD Upgrades | Crucial.com.

Hope this was helpful.

Kind Regards,

NonSequitur777

[kfmfe04]

@NonSequitur777

I appreciate the detailed reply.  I'm trying to get all DDR5 4x32GB sticks to work under XMP.

• 128GB Non-XMP, DDR5 4x32GB/3600 works
• 64GB XMP, DDR5 2x32GB/6400 works (G.SKILL is spec'ed for 6400)

But I cannot do better than 64GB XMP, DDR5 2x32GB/6400.  

96GB XMP, DDR5 3x32GB or 128GB XMP DDR5 4x32GB fails to POST.

Is XMP 4x32GB a general limitation that's currently not achievable for all current MOBO's?

When I google around, I find:  https://www.reddit.com/r/buildapc/comments/151qaz8/is_ddr5_really_that_unstable_with_4_sticks/

which seems to suggest that asking the current state of MOBO's + MCI's in the CPU to handle XMP DDR5 4x32GB is asking too much.

Is this correct or do you know if 128GB DDR5 4x32GB Kingston sticks have run successfully under XMP?

[NonSequitur777 · Accepted solution]

@kfmfe04,

I am not sure if four RAM modules can run in quad mode on your rig, but regardless -at least based on available User date (UserBenchMark), I would say that 2 x 32GB at 6000 (6400?) MHz appears to be the limit for running RAM on your desktop at 6000 (6400?) MHz.

Incidentally, one of the "Reddit" contributors nailed it in my opinion:

Hope this was helpful.

Kind Regards,

NonSequitur777