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EmmettLuis
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HP Omen Obelisk Desktop z390 motherboard ram speed XMP?

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I recently bought an hp omen obelisk 875-1040st. It uses a proprietary mobo z390 (called shire). The issue is that it supposedly only supports ram upto 2666 mhz. I have read that some people who have bought ram with speeds over 3000 mhz have had them default to the JEDEC standard of 2133.

It seems that xmp is not an available option in the bios/uefi. And intel xtu doesn't install due to signature validation issues. Is there any way to get ram to anything over 2666?

If I were to solely buy ram with 2666, should I focus on getting the best CAS latency possible (I think Ballastix sells 16 gb sticks with C16 whereas the generic crucial/hyperx is C19)

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Riddle_Decipher
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@EmmettLuis Greetings from the HP Community!

I went through the details of your device and here's what I see:

(I must let you know that HP does not recommend upgrades or hardware changes as the device is equipped with parts that perform at its optimal performance by design, that said, the upgradeable parts listed by HP articles are purely for your ease, as the decision to upgrade will be at your own discretion) - since we don't recommend upgrades, we don't have more details about the Ram speed XMP, etc...

 

These are the parts tested and approved by HP to work on your device,

You may select one of the following options to upgrade your device:

  • 8 GB (1 x 8 GB) DDR4 PC4-21300

  • 16 GB (2 x 8 GB) DDR4 PC4-21300

  • 32 GB (4 x 8 GB) DDR4 PC4-21300

  • 32 GB (2 x 16 GB) DDR4 PC4-21300

  • 64 GB (4 x 16 GB) DDR4 PC4-21300

Keep us posted,

If you would like to thank us for our efforts to help you, 

Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post, 

Have a great day!

Riddle_Decipher
I am an HP Employee

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