XPS 15 9510 (i7-11800H) RAM upgrade: 1.20V vs 1.35V + Dual Ranked vs Single Ranked + XMP

You don't have XMP access on this system, so anything that requires it (which quite a bit of performance RAM does), will be problematic.

Since high performance RAM is no advantage in this system (without XMP or memory timing settings, you can't take advantage of it), why not just buy the RAM Crucial recommends:

https://www.crucial.com/memory/ddr4/ct2k16g4sfd8266/ct18508835

That sounds good to me. So the Crucial Ballistix RAM doesn't work because of the missing XMP profile in the BIOS of the XPS. It's crazy that Crucial is listing that product in the list for the XPS 9510.

@ejn63 your link shows the DDR4-2666 version. The DELL 9510 needs DDR4-3200 version here

That question boils down to Dual Ranked (CT2K16G4SFD832A) or Single Ranked (CT2K16G4SFRA32A)? Both are in the list "compatible-upgrade-for" from Crucial again.

All else equal, single ranked DIMMs are faster than  dual-rank -- though the difference is slight.

Is that true? I think that used to be the case but on the Ryzen (I know this is an Intel CPU) side, the dual rank mem adds significant performance.

así es Crucial Ballistix no es una memoria compatible con todos los sistemas aunque CRUCIAL diga que si es compatible, yo realice la consulta directa a Crucial si era compatible Ballistix para Dell G15 5515 Ryzen Edition y lo que me indicaron sin afirmar que sea compatible, que la comprara y la probara en mi equipo... en el buscador automático de ellos no hay memoria compatible para mi equipo aun el ssd compatible esta equivocado ya que ellos indican que es compatible uno ssd pcie nvme de generación 4 y no es así ya que trabaja de manera nativa con ssd nvme generación 3

aquí el problema es que ni en la misma pagina de Dell hay información suficiente 

I bought new RAM kf432s20ibk2/64, but after installing I'm getting post error 2.5 - ram does not supported. I checked ram configuration and it should be supported! What's wrong? 

I would like to upgrade RAM on my new XPS 15 9510 (2021) from 16 to 32 GB.

* Is there a list of compatible RAM anywhere?
* Would CORSAIR VENGEANCE DDR4 CMSX32GX4M2A3200C22 (2X16GB) work? Thats the Spec my favorite Dealer has in stock.

Pretty much all the major manufacturers have a page with a list of compatible rams for your laptop.

Crucial and Kingston for example do. Corsair is the one that doesn't have a compatibility checker for laptops..!

But no, the model you are interested in is not compatible with the 9510, it's been tested a few times in the past.

Hi,

it doesn't work because your RAM supports Intel XMP, which isn't supported by your laptop.

When you shop for your RAM, avoid any module that supports XMP profiles.

you are right, by mistake. Fortunately, I was able to get this RAM back and bought a new one: Crucial 32GB DDR4 SODIMM PC4-25600 CT32G4SFD832A  and it works!

Hi!! So the best option is 

CT2K16G4SFD8266 

2x16 dual rank right?

2600 or 3200?

I have a XPS 15 9510

Thank you!

I bought one CT32G4SFD832A and it works good for me.