Replacing a motherboard and adding memory can look like the same shopping task until socket, system model, and memory generation enter the picture. In this cpus, motherboards & memory selection, two choices are tied to named Dell desktops, one is an AMD AM5 ATX board, and one is DDR5 desktop memory. The useful shortcut is to decide whether you are repairing a specific Dell, planning a motherboard-based build, or adding RAM before comparing anything else.
Quick take
The Dell XPS 8940 Desktop Motherboard is the focused pick for the XPS 8940 and named 10th- or 11th-generation Intel processor support. The Dell Precision 3650 Tower motherboard is the lower-priced Dell route at USD 89.99, but it is listed as used. The AORUS X870E PRO ICE is the distinct AMD AM5 motherboard choice, with ATX form factor, M.2 expansion, and on-board audio listed. G.SKILL Ripjaws S5 is not a motherboard alternative at all; it is DDR5-6000 desktop memory with 32 GB capacity per module. That distinction should settle the first and biggest decision.
Listed price comparison
| Product | Listed price | Price position |
|---|---|---|
| Dell XPS 8940 Desktop Motherboard | USD 161.58 | |
| Dell Precision 3650 Tower Motherboard | USD 89.99 | |
| G.SKILL Ripjaws S5 Desktop Memory | USD 379.00 | |
| AORUS X870E PRO ICE Motherboard | USD 199.99 |
The price bars show a wide spread, but they should not be read as a simple quality ladder. The memory purchase serves a different role from the three boards, while the Dell boards are aimed at different named desktop families.
Decision matrix
- Replacing a named XPS desktop board: Start with the Dell XPS 8940 Desktop Motherboard Intel 10th 11th Gen LGA1200 DDR4 K3CM7 427JK.
- Working on a Dell Precision 3650 Tower: The Dell Precision 3650 Tower Intel W580 Socket LGA1200 Motherboard NDYHG 0NDYHG is the system-specific route.
- Adding desktop memory instead of changing the board: G.SKILL Ripjaws S5 32GB DDR5 desktop memory belongs in this lane.
- Choosing an AMD motherboard format: AORUS X870E PRO ICE AM5 ATX DDR5 PCIE WIFI 7 AMD EXPO Gaming Motherboard is the relevant choice.
Product notes
Dell XPS 8940 Desktop Motherboard Intel 10th 11th Gen LGA1200 DDR4 K3CM7 427JK
If the job is replacing the board in a Dell XPS 8940, the model-specific naming is the main reason to put this one first. It combines an LGA1200 designation with stated compatibility for 10th- and 11th-generation Intel Core processors. Its listed connections include USB 3.1, USB 2.0, USB Type-C, M.2, SATA, and PCIe, which gives this board a clearly defined desktop-board feature set. New condition is another relevant detail for a replacement-focused purchase. The limitation is equally specific: its compatibility is tied to the XPS 8940, so the named Dell system should drive the choice rather than a general desktop-upgrade plan.
Dell Precision 3650 Tower Intel W580 Socket LGA1200 Motherboard NDYHG 0NDYHG
The Precision 3650 Tower board makes the most sense when that Dell workstation name matches the computer being serviced. At USD 89.99, it occupies the lowest price position in this comparison, and it is described for the Dell Precision 3650 Tower with DDR4 SDRAM memory slots. BIOS Unlocked, Computrace Unlocked, and MDM not enabled are also specifically listed. This is a practical match for a Precision-focused replacement rather than a broad platform choice. Its important trade-off is condition: this board is listed as used, unlike the new XPS 8940 board. That makes the lower listed price only one part of the decision.
G.SKILL Ripjaws S5 32GB 1x32GB DDR5 6000 CL32 XMP 3.0 Intel Desktop Memory
Choose Ripjaws S5 when the goal is a DDR5 desktop memory upgrade, not a motherboard replacement. The title identifies Intel desktop memory, while the specifications list DDR5-6000, also described as PC5-48000, alongside 32 GB capacity per module. CL32 and XMP 3.0 are named directly, giving shoppers clear terms to match against an intended memory configuration. The listed USD 379.00 price is the highest of the four, reflecting that it is a separate memory purchase rather than a system-specific Dell board. Its limitation is role-based: Ripjaws S5 addresses desktop memory, so it does not replace the motherboard needed for either Dell repair or an AM5 motherboard project.
AORUS X870E PRO ICE AM5 ATX DDR5 PCIE WIFI 7 AMD EXPO Gaming Motherboard
The AORUS X870E PRO ICE is the selection to center on for an AMD AM5 motherboard plan. It is listed in ATX form factor and names DDR5, WiFi 7, and AMD EXPO in its title; M.2 expansion slots and on-board audio are also included. Those details make it the only choice here positioned around an AMD board platform rather than a named Dell desktop replacement or a memory-only upgrade. The open-box condition is the key limitation to weigh against the board's feature set. It is also an ATX motherboard, so its form factor should align with a build planned around that format.
Final recommendation by use case
For a system-specific replacement, choose between the two Dell boards by the computer name printed in each product heading: XPS 8940 or Precision 3650 Tower. For a motherboard build centered on AMD, the AORUS X870E PRO ICE is the appropriate route. Select G.SKILL Ripjaws S5 when the purchase is specifically about DDR5 desktop memory rather than replacing the board itself. Start with that use-case split, then let condition and listed price refine the choice.
