- 16 DIMMs
- Dual Socket
- 1 TB Max
PowerEdge R550
Dell/Alienware - PowerEdge R550
Spec-true memory kits mapped to Intel Xeon Scalable (2nd Gen) controller rules—upgrades that perform like OEM.
- Spec-Locked Configurations — Every kit aligns with Intel controller limits, Dell system topology, and JEDEC timing standards
- Predictable Speed Delivery — 1DPC configurations reach up to 2933 MT/s; 2DPC runs at 2666 MT/s
- Balanced Socket Population — Mirrored channel configuration across both CPUs for optimal bandwidth
- Enterprise-Grade Support — Lifetime warranty, advance replacement, and technical experts who understand server memory
- Sockets
- 2
- Max memory
- 1 TB
- Memory tech
- DDR43200 MT/s · ECC
Engineered for Dual-Socket Performance
The Dell Alienware R550 delivers serious compute density with its dual Intel Xeon Scalable (2nd Gen) processors and 12 total memory channels. With 8 DIMM slots supporting up to 1 TB of Reg ECC RDIMMs, this platform is built for workloads that demand both processing power and memory bandwidth.
The Proven Match™ Advantage: Our memory kits are engineered from controller specifications and system topology—not guesswork. Every configuration installs cleanly, trains at the correct frequency, and eliminates the compatibility headaches that plague mixed-vendor deployments.
Technical Specifications & System Limits
| Parameter | Specification |
|---|---|
| CPU Sockets | 2 × Intel Xeon Scalable (2nd Gen) |
| Channels per CPU | 6 |
| Total DIMM Slots | 8 (up to 2 DIMMs per channel) |
| Memory Type | DDR4 RDIMM ECC |
| 1DPC Speed | Up to 2933 MT/s |
| 2DPC Speed | 2666 MT/s |
| Maximum Capacity | 1 TB Reg ECC RDIMMs |
| Last Verified | 2026-02-12 |
Understanding Memory Speed Behavior
The CPU memory controller—not the DIMM label—determines actual bus speed. At 1 DIMM per channel (1DPC), expect up to 2933 MT/s. When you populate 2 DIMMs per channel (2DPC), the controller steps down to 2666 MT/s for signal integrity. Our listings always reflect the configured operating speed, not marketing specifications.
Population Strategy Guide
| Configuration | Population Method | Performance Profile |
|---|---|---|
| Fastest (1DPC) | One DIMM per channel across both CPUs | Maximum bandwidth at 2933 MT/s |
| Balanced (2DPC) | Second DIMM per channel, mirrored across CPUs | Capacity + bandwidth at 2666 MT/s |
| Maximum | Fill remaining slots symmetrically | Peak capacity deployment |
Proven Match™ surfaces only controller-safe, topology-compliant configurations—eliminating guesswork from your upgrade planning.
Memory Compatibility Requirements
Qualified Modules:
- Curated Samsung, Micron, and Hynix DDR4 RDIMM ECC modules
- Every module tested against Intel Xeon Scalable (2nd Gen) controller specifications
Strict Compatibility Rules:
- No RDIMM/LRDIMM mixing permitted
- Symmetric densities required per channel
- ECC mandatory for all server workloads
Unsupported combinations are automatically excluded from our catalog—you simply cannot order an incompatible configuration.
Three-Gate Validation Process
Every Proven Match™ configuration must clear three verification gates before appearing in our catalog:
- JEDEC DDR4 Compliance — Timing and signaling standards verification
- Intel Xeon Scalable (2nd Gen) Controller Rules — 1DPC/2DPC speed and population validation
- OEM Slot Topology Verification — Dell-specific BIOS and hardware compatibility confirmation
Only configurations passing all three gates are offered—ensuring stable, balanced, performance-true results.
Right-Size Your Memory for the Workload
Mid-Tier Configurations
Ideal for production workloads requiring reliable performance and room to grow
- Virtualization — Increase VM density without memory contention
- Database & OLTP — Buffer pools sized for transaction-heavy environments
- Application Servers — Consistent response times under load
- Streaming ETL — In-flight data processing with headroom
Maximum Configurations
Built for memory-intensive workloads where capacity drives capability
- In-Memory Analytics — Spark, Arrow, and columnar processing at speed
- AI/ML Workloads — Fine-tuning and training with full dataset residency
- ERP Consolidation — Multiple instances on fewer physical servers
- VDI at Scale — Dense virtual desktop deployments
The Bottom Line: Capacity and bandwidth scale predictably—without the instability risks of ad-hoc memory sourcing.
PowerEdge R550 memory questions
The questions our engineers answer on the phone every day.
Find Your Proven Match™ Configuration
Select your optimization target:
- Fastest (1DPC) — Maximum speed at 2933 MT/s for bandwidth-sensitive workloads
- Largest (2DPC/Max) — Peak capacity for memory-hungry applications
Every kit displays real-world operating speed and carries the Proven Match™ compatibility guarantee.
Enterprise Support Included
- Lifetime Warranty — Coverage for as long as you deploy the memory
- Advance Replacement — Failed module? Replacement ships before you return the original
- Server-Savvy Support — Technical staff who understand enterprise memory architecture
Browse Compatible Kits →