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RAM for 9900K when upgrading?

Piotr_Biesiada
Beginner
277 Views

I have Asus Maximus X Code mobo and G.Skill Trident 16 GB RAM model F4-4133C19D-16GTZKW. Now the CPU is 8700K. I am thinking about upgrade to 9900K.

8700K seems to be Dual Channel PC4-21300U (DDR4-2666) and

9900K seems also to be Dual Channel PC4-21300U (DDR4-2666).

Mobo is ok for that CPU, but would I need to change RAM?

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4 Replies
AlHill
Super User
142 Views

You need to use the memory config supported by ASUS for that motherboard.

If you do upgrade the processor, make sure you upgrade the ASUS bios before installing the new processor.

 

Doc

 

Piotr_Biesiada
Beginner
142 Views

Ah, yes, I was misleaded by shopping portal parameters for 9900K.

If the memory support is the same for both CPU there will be no problem.

I have supported memory currently.

Seen other info for 9900K earlier.

n_scott_pearson
Super User Retired Employee
142 Views

Technically, your memory (which is DDR4-4000) is out of spec. for BOTH of these processors. These processors are validated for DDR4-2666 memory. Any speeds above that are overclocking the processor's memory buses. Operation is not guaranteed at these overclocked speeds. As Al said, the ability to run at these speeds is more often gated by the design and implementation of the motherboard and its BIOS than anything else.

 

...S

Piotr_Biesiada
Beginner
142 Views

Asus documentation - qualified vendor list - shows that this memory is supported and it is working flawlessly. I would be stupid to use slower memory for such a great set of elements.

I have no problems with that memory and I will think more about upgrading to 9900K when the prices will drop down a little.

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