1 Copper

XPS 8930, Compatible RAM, #4

Quick (related) question:  I am getting an XPS 8930 with 16GB of 2666 RAM (2 x 8GB I believe).  It looks like I can add another 32GB of Crucial or Kingston HyperX Fury Black 2666 RA (2 x16 GB) for around $140. Will 48GB of RAM work? (I usually see RAM specs go from 32GB to 64GB without specifying 48GB.) If so, does anyone know how I would configure the 4 DIMMs (2 x 8GB + 2 x 16GB) so it worked most effectively (meaning what memory sticks go in which DIMM slots)?

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4 Beryllium

Re: XPS 8930, Compatible RAM, #4

You should wait until you actually get your computer and check the memory configuration. Sometimes Dell installs 16GB with one DIMM (operating in single channel mode).

Also this thread may help: https://www.dell.com/community/XPS-Desktops/XPS-8930-48GB-ram-2666MHz-Installation/m-p/6133031

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