Omen 25L does not work with 4 RAM modules

[Jorge5150]

I'm spanish, sorry if my english is not very good.

I have an Omen 25L GT15-1093ns. It came with 2x8 GB Kingston DDR5 5200. I added another 2x8 set with the same specs (Kingston Fury Beast 5200 CL40 XMP), but I've seen that they have different XMP profiles and the chip manufacturer is not the same. The HP chips are Hynix and the ones that I bought are Micron.

After a lot of work I got the 4 modules running at 5200 Mhz CL40 selecting the XMP 1 profile in the BIOS, and then changing to a custom profile.

But the configuration is not stable. Every time I play a game the modules stops being recognized and disappear in apps like CPUID, AIDA64 and HWINFO. Then I reboot the PC and the memory reset to 2000 Mhz. I've tried to get it stable with different profiles, lowering the speed, etc. but nothing has worked. The games worked well with just 2 RAM modules. Is there a way to get a stable configuration with 4 modules?

[Bill_To]

Hi @Jorge5150 

Welcome to the HP Forum.

Your problem description using English is very clear and concise.

I did not think HP provided XMP options on MBs used in the 25L PC series.

Running four overclocked memory modules from the same batch (a memory kit) on many MBs is difficult at best. This puts a lot of stress on the memory controller integrated in the CPU. You are mixing memory kits. This can cause additional problems when overclocking the memory.

You have four eight GB memory modules totaling 32 GBs of memory. I always try to use two compatible 16 GB memory modules for the best results on retail MBs. And HP MBs usually like the HP branded Kingston memory.

So, @NonSequitur777 can provide some memory options. But I would do two 16 GB memory modules for the best results.

Regards

[NonSequitur777]

@Bill_To,

Yes, I agree with your assessment: a matching 2x16GB RAM kit would be preferable, such as: 2x16GB of Kingston Fury DDR5 6000 MHz, (KF560C36BBEAK2-32) RAM, which this HP OMEN by HP 25L Gaming Desktop GT15-1xxx User was able to clock at a blistering 6000 MHz: HP OMEN by HP 25L Gaming Desktop GT15-1xxx Performance Results - UserBenchmark, or this User with 2x16GB Kingston Fury DDR5 5200 MHz, (KF552C40BB-16) RAM, running at 5200 MHz: HP OMEN by HP 25L Gaming Desktop GT15-1xxx Performance Results - UserBenchmark.

Kind Regards,

NonSequitur777

[Jorge5150]

Thanks for your responses. Now I know that 2 modules is the way to go but I didn't know that when I bought the 2x8 GB kingston modules. HP only says "supports up to DDR5-5200" in the PC specifications, but doesn't say anything about the number of dimms.

I have managed to get the 4 modules at 4400 mhz. I had to remove the new modules and left only the HP ones (because the 4400 profile is not available with 4 modules in). Then I selected the default profile (4400) in the bios and take a photo of all the settings (latencies, timings, voltages, etc). Then I added the new modules, selected a custom profile and enter all the settings manually. But I don't know if it is totally stable, I have to try games and make some tests.

I'd like that someone from HP reply and clarify what is the maximum supported speed with 4 dimms.

[Bill_To]

Hi @Jorge5150 

My pleasure.

The best chance of getting rated XMP speeds would be to use the 16 GB memory modules suggested by @NonSequitur777 

I don't know if someone from HP will respond. And there are too many variables involved to get a definitive answer to your question. Not all CPU memory controllers are equivalent due to the silicon lottery and memory module quality varies.

I have a stable MSI MB running a memory kit of four 8 GB DIMMS at their rated XMP speeds and timings, but I was lucky. I would have switched to two 16 GB memory modules if the MSI MB was unstable using four overclocked 8 GB memory modules.

Regards

[Jorge5150]

Now the main problem isn't getting XMP speed, is getting any speed. I haven't found any speed or profile that works with all 4 modules. The 4400 default profile that comes with the HP sticks has reverted back to 2000 mhz after a few reboots. I also tried the 4000 default profile of the new Kingston sticks and is rejected when inserting the 4 modules.

There should be a configuration valid for all 4 modules since they have the same speed and latencies, but nothing works. Maybe it's because of the different chip manufacturer, I don't know. If nothing works I'll end up buying a 2x16GB kingston set and removing the 8GB modules.

Today I've seen a new BIOS update available in Windows Update and in HP PC Hardware Diagnostics but there's no info about the contents. Could it be the patch for intel CPUs? I have a i7-13700F.

[Bill_To]

Hi @Jorge5150 

This HP Site has the latest BIOS update for the 8B1D MB. I don't see anything relevant to memory compatibility fixes or the Intel microcode patch in the "Fixes" section.

I would avoid using Windows Update to update the BIOS. And HP Support Assistant can be sketchy at times.

The BIOS update decision is yours to make but I would sit tight if the only problem you have is the XMP issue when using two different memory kits.

You have a finicky CPU memory controller problem and are using two different memory kits.

Regards

[Jorge5150]

I've just updated the BIOS. It's not the patch for intel 13 & 14 gen processors but it has updated the CPU microcode from 0x123 to 0x125. It's the BIOS F.25 from July (I previously had F.22 from May).

I dont' know if that BIOS does something to the RAM, but it has decreased the 5200 speed to the default 4400 setting. I only have now the 2 HP modules installed.