help Question about ram

[ohrightnoob]

Hello Everyone,

 

So I bought a pre built gaming pc last year. Its my first gaming PC.

I have 32gb ram and wanted to increase to 64gb.

I have GIGABYTE X870 Eagle WIFI7 as motherboard.

I used CPUID CPU-Z to get the ram part number and got this CMH32GX5M2B6400C36. image attached below.

 

Here is there issue,

This the ram I have Link

This is the one I bought. Link

Yes, 1 from amazon.com and other one from amazon France.

Both same part number but

The one I have is 1.35v and it runs at 4800 MT/s

The one I bought is 1.40v

 

When I install all 4 rams on my motherboard.

My PC recognized that I have 64gb ram but

The lights was not in sync

And it runs at 3600 MT/s. is it normal?

 

If i enable the XMP and run both ram at 1.40v. Will it cause an issue?

and if i don't enable XMP and use them at 3600MT/s. Will it cause an issue on the longterm?

 

HELP PLEASE

Thanks in advance to anyone helping

 

 

[Mumintroll]

They might not be of the same version, same revision.

Even if they have the same model name like those you already have they can be from a later or earlier revision.

So there can be different parts between them, and have different specifications.

 

If your older pair runs on higher voltage than they're specified then there's a risk that it can cause damage over time.

You can perhaps manually undervolt, so that the new RAM runs at the same voltage as the old, but it's possible that will be unstable aswell.

 

2x 32gb RAM sticks of the same kit would be much better.

Or running your 4 sticks without XMP.

Do you need 64gb? 32gb is usually enough for a gaming pc.

[Tetras]

44 minutes ago, ohrightnoob said:

And it runs at 3600 MT/s. is it normal?

The official spec from AMD says that 3600 is all you can expect from running 4 sticks, so I would assume that's why your board defaulted to 3600.

 

But, it should be possible to achieve much higher speeds than 3600, with 4 single rank sticks.

 

XMP will almost certainly fail to work, but you could enable XMP and choose a much slower frequency manually. ideally, I'd use the lesser voltage of the two.

[RadiatingLight]

4 DIMMS on AM5 (with current generation memory controllers) is not great. BIOS updates have made it better (and enabled higher capacity which doesn't matter here), but you will probably not be getting this to run any faster than 4800MT/s

[freeagent]

I am running 4 sticks.. runs great. Trains like running 2 sticks.