Re: OT: UEFI settings for DDR5 RAM

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On Mon, 2024-08-19 at 22:55 +1000, fedora@xxxxxxxxxxxxxx wrote:
> On 19/8/24 9:17 pm, Patrick O'Callaghan wrote:
> > Apologies in advance if this is too OT.
> > 
> > I recently installed a new system based on an MSI B650-P
> > motherboard
> > with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a
> > recommended frequency of 5200 MHz, but the UEFI screen shows it
> > running
> > at 4800MHz (even though it also notes the correct spec). Here's a
> > screenshot link:
> > 
> > https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=sharing
> > 
> > The MSI docs are atrocious and I can't see any way of changing the
> > DRAM
> > frequency.
> > 
> > Not a big deal really but if anyone has any ideas I'd appreciate
> > the
> > feedback.
> > 
> > poc
> 
> I do not have this mobo or DDR5 but thought one should consider the
> mobo as limiting the speed.
> Some, will limit the DRAM speed as more DIMMs are added.
> 
> Try to install only one DIMM and see if it makes a difference.
> 

Maybe. I doubt I'll go to that much trouble though.

> Also, I see in the image that you installed in slots A2/B2. Is this
> what the doco recommends?

I know it looks odd, but yes, this is the recommended setup.

poc
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