• 32 DIMMs
  • Dual Socket
  • 8 TB Max

PowerEdge R750xa

Dell/Alienware - PowerEdge R750xa

Spec-true memory kits—engineered to Intel Xeon Scalable (2nd Gen) controller rules—delivering OEM-grade reliability without OEM pricing.

  • Spec-Locked Configurations — Every kit aligns with Intel controller limits, Dell system topology, and JEDEC timing standards
  • Predictable Performance — 1DPC configurations reach up to 2933 MT/s; 2DPC runs at 2666 MT/s
  • Balanced Population — Mirrored channel deployment across both sockets for optimal bandwidth
  • Enterprise-Grade Support — Lifetime warranty, advance replacement, and technical expertise on every order
Guaranteed compatible
Or your money back
Expert support
24/7 US-based techs
Ships same day
Orders before 4pm ET
Platform topology
32
DIMM slots
16 per socket

Sockets
28 ch · 2 DPC
Max memory
8 TB2 TB RDIMM · 8 TB LRDIMM
Memory tech
DDR43200 MT/s · ECC

Slot map
Section 01 — About

Purpose-Built for Demanding Workloads

The Dell Alienware R750xa delivers enterprise-grade compute power through its dual Intel Xeon Scalable (2nd Gen) processors and robust memory architecture. With 6 memory channels per CPU and 16 DIMM slots, this platform scales to 2 TB of Registered ECC memory using DDR4 RDIMMs—providing the foundation for virtualization clusters, database engines, and analytics workloads.

The Proven Match™ Advantage: Our methodology translates Intel controller specifications and Dell's system topology into deterministic memory kits. The result: clean installation, correct frequency training, and zero guesswork about compatibility.

Section 02 — Specs

Technical Specifications & System Limits

ParameterSpecification
CPU Sockets2 × Intel Xeon Scalable (2nd Gen)
Channels per CPU6
Total DIMM Slots16 (up to 2 DIMMs per channel)
Memory TypeDDR4 RDIMM ECC
Maximum Capacity2 TB Registered ECC
1DPC SpeedUp to 2933 MT/s
2DPC Speed2666 MT/s
Last VerifiedFebruary 12, 2026

Understanding Memory Speed Behavior

The CPU memory controller—not the DIMM label—determines actual operating speed. At 1 DIMM per channel (1DPC), this platform reaches up to 2933 MT/s. When you populate 2 DIMMs per channel (2DPC), the controller steps down to 2666 MT/s to maintain signal integrity.

Our listings display configured speed, not marketing speed—what you see is what your system runs.


Population Strategy (Bank Schema)

ConfigurationPopulation RuleUse Case
Fastest (1DPC)One DIMM per channel across both CPUsMaximum bandwidth per module
Balanced (2DPC)Second DIMM added per channel, mirroredCapacity + performance balance
MaximumAll slots filled symmetricallyPeak capacity deployments

Proven Match™ surfaces only configurations that pass controller and topology validation.


Compatible Memory Specifications

Qualified Modules: Samsung, Micron, and Hynix DDR4 RDIMMs selected for Intel Xeon Scalable compatibility.

Enforced Compatibility Rules:

  • No RDIMM/LRDIMM mixing permitted
  • Symmetric densities required per channel
  • ECC mandatory for all server configurations

Configurations that violate these rules never appear in our catalog—incompatible combinations are filtered before you see them.


Three-Gate Validation Protocol

Every Proven Match™ configuration must clear three verification stages:

  1. JEDEC DDR4 Compliance — Timing and electrical specifications validated
  2. Intel Controller Rules — 1DPC/2DPC population requirements enforced
  3. OEM Topology Verification — Dell slot mapping and population sequences confirmed

Only configurations passing all three gates are published—ensuring stable, balanced, performance-true operation.

Section 03 — Workloads

Right-Size Your Memory to Your Workload

Mid-Tier Configurations

Ideal for production environments requiring reliable capacity scaling

  • Virtualization — Increase VM density without memory contention
  • Database & OLTP — Buffer pools and caching for transaction throughput
  • Application Servers — Multi-instance deployments with headroom
  • Streaming ETL — In-flight data processing with consistent performance

Max-Tier Configurations

Built for memory-intensive computing at scale

  • In-Memory Analytics — Spark, Arrow, and columnar processing engines
  • AI/ML Workloads — Fine-tuning and training dataset residency
  • ERP Consolidation — SAP HANA and similar in-memory platforms
  • VDI at Scale — High-density virtual desktop deployments

Every upgrade tier delivers predictable capacity and bandwidth scaling—no stability compromises, no surprise performance cliffs.

Section 05 — Get a quote

Find Your Proven Match™ Configuration

Select your optimization target:

  • Fastest (1DPC) — Maximum speed at 2933 MT/s
  • Largest (2DPC/Max) — Maximum capacity up to 2 TB

Every kit includes:

  • Lifetime warranty coverage
  • Advance replacement service
  • Server-specialized technical support

What you see is what runs. Real-world speeds. Verified compatibility. Zero guesswork.

100%
Lifetime warranty
On every DIMM we ship
< 72h
Tested on reference unit
Every kit, every time
24/7
US-based engineering support
Real humans, real answers
OEM
Price-match guarantee
Dell, HPE, Lenovo quotes