Can't upgrade RAM to faster speeds?

[jaredtodworkman]

Am I right in the assumption that I can't upgrade my RAM to 3200 MHz, my desktop being restricted to 2666 MHz?

If so, does that mean that I can't use 3200 MHz RAM in my computer at all? I have some that I would like to put in. 

[Paul_Tikkanen · Accepted solution]

Hi:

What model processor does your PC come with?

If it comes with an Intel 8th or 9th generation core processor, the maximum speed the processor will run the memory at is 2666 MHz.

You can install a compatible DDR4-3200 memory chip, but it will only run at 2666 Mhz.

[jaredtodworkman]

Thanks! Where can I find a list of compatible RAM? 

[Paul_Tikkanen]

You're very welcome.

My understanding is that if you don't install an identical memory chip part number that was used in your PC, it may actually run at a slower speed than 2666 MHz.

Crucial indicates that the memory they have listed is compatible.

HP - Compaq OMEN Obelisk 875-1000 | Memory RAM & SSD Upgrades | Crucial.com

The memory chip that HP installed in your PC according to the parts list has this part number:

HP PartSurfer

L40877-800

Memory - GNRC RAM UDIMM 8G DDR4 1.2V 2666 HS

L40877-800 - Hewlett-packard (HP) - Memory - RAM Udimm 8GB DDR4 1.2v 2666 HS | Impact Computers

You can also refer to this discussion...

Solved: OMEN Obelisk 875-0014 has single HyperX 16GB DDR4-2666 RAM. ... - HP Support Community - 702...

[jaredtodworkman]

Sorry, I have one more question: is it my motherboard or processor that's limiting me to 2666 MHz?

[Paul_Tikkanen]

Since the motherboard doesn't support processor upgrades beyond the Intel 9th gen core processors, and those run at 2666 MHz, in this case you could say that either or both are limiting the memory speed to 2666 Mz.