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Last reply by 09-19-2022 Unsolved
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2 Bronze
2 Bronze
1899

XPS 8950, ram upgrade, 2x8GB and 2x32GB?

Hi,

I wonder if someone can help me with this? I purchased an XPS 8950 which came with 16GB (2x8GB) DDR5 ram installed. I wanted to upgrade so I have just purchased an extra 64GB (2x32GB) which were matched on the Dell memory match thing. But I have noticed on the service manual that 2x8GB and 2x32GB is not listed as a possible combination. Has anyone tried this before? Will it work or do I need to rethink? Any advice would be appreciated!

Replies (11)
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1743

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Moderator
Moderator
1743

Thank you! We have received the required details. We will work towards a resolution. In the meantime, you may also receive assistance or suggestions from the community members.


Social Media Support

#IWork4Dell
Find your Service Tag


If still under warranty, click the "Get help now" icon on the right to start a live chat session. Currently only available in the USA.

1732

Re: I have noticed on the service manual that 2x8 and 2x32gb is not listed as a possible combination

xps8950 memory Dell validated spec:

Memory configurations supported:

● 8 GB, 1 x 8 GB, DDR5, 4400 MHz
● 16 GB, 2 x 8 GB, dual-channel DDR5, 4400 MHz
● 16 GB, 1 x 16 GB, DDR5, 4400 MHz
● 32 GB, 2 x 16 GB, dual-channel DDR5, 4400 MHz
● 64 GB, 4 x 16 GB, dual-channel DDR5, 4000 MHz
● 64 GB, 2 x 32 GB, dual-channel DDR5, 4400 MHz
● 128 GB, 4 x 32 GB, dual-channel DDR5, 3600 MHz

users have also validated 2x8 GB in 8950.


1731

Thankyou, I saw this in the service manual as mentioned. 

What would happen if I put it all in (eg 80 gb)? Would it do damage? Would it fail to boot?

I understand that the manual does not list all of the possible combinations? Just wondering if anyone on here has experience with this.

1145

Hello, did you try doing the 80gb? I had the same question for my 8950.

1139

You can easily use 2x8GB and 2x32GB, and will have a total of 80GB

However, keep in mind is when you have 2 memory slots filled your DDR5 RAM will run at 4400Mhz, and when you have 4 slots filled, your DDR5 RAM will run at 3600Mhz

2 Bronze
2 Bronze
1012

@Simondinio  Have you tried successfully? All 80 G and at which MHz? 4000 or 3600? Please update if possible.

1010

I did try, the system just won’t accept 80 gb, despite what Dell said. It comes up with errors when I try which are fixed when I just have the 64gb OR the 16 but not both.

I am now running 64 gb at 4400mhz. There is no complaints procedure so am now left with 2 8gb chips in boxes which i took out the machine. 

10 Diamond
997

@Simondinio  Did you try mixing the pairs of RAM?

Put the new 2x 32 GB DDR4 RAM in slots 1 and 2, counting from the CPU, and Dell's 2x 8 GB OEM RAM in slots 3 and 4.

Yes, that does mean the modules in a matched pair will be in slots with different color retention clips.  And yes, that's contrary to how RAM is "normally" installed. Many XPS 8940 users have found when installing different brands of RAM, that it works if you mix the pairs.

After you install the mixed pairs, remove motherboard battery and press/hold power button for ~30 sec and then reinstall the battery. That will force BIOS to see the change in RAM config.

Of course, I can't guarantee the PC will work with 80 GB installed, even after you mix the pairs, since that is an "unusual" config and never validated by Dell. If it does work, use CPU-z (free) to check RAM speed and if it's running in single or dual channel mode (CPU-z: "Channel #").

If all else fails, you can probably sell the 2x 8 GB of OEM RAM on one of the usual "for sale" sites. RAM is quite expensive right now so you might be able to get a really good price for it...

Ron

   Forum Member since 2004
   I'm not a Dell employee

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