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Title
Dell PowerEdge R640 Dual Xeon Gold 5218R, 768 GB DDR4, PERCless, Dual 960 GB SSDs, 750 W Redundant PSU
Keywords
Dell PowerEdge R640, Xeon Gold 5218R, 768 GB DDR4 memory, PERCless embedded SATA, 960 GB SSDRead-Intensive, 750W redundant PSU, Broadcom 5720 1GbE LOM, ConnectX-5 10/25GbE NICDescription
The Dell PowerEdge R640 is a high density 1U dual-socket server platform designed for data center scale-out and virtualization use. According to Dell’s official spec sheet, the R640 supports up to two Intel Xeon Scalable processors, up to 24 DIMMs, and flexible front drive configurations.
Your configuration uses **2 × Intel Xeon Gold 5218R** (20 cores / 40 threads each), maximizing compute capacity while leveraging a platform without a separate RAID controller (“No Controller”) and relying on embedded SATA. The CPUs are supported by the R640 architecture.
Memory configuration includes **12 modules of 32 GB DDR4-3200 RDIMM** (dual rank), totaling 384 GB *per socket* = 768 GB overall (since both sockets): this arrangement gives strong memory density and bandwidth. The configuration lists “3200 MT/s RDIMMs” as the speed.
Storage is realized via **2 × 960 GB SATA Read-Intensive SSDs** (6 Gbps, 512e, hot-plug). Since there is “No Controller” selected and “No RAID with Embedded SATA,” this system relies on host OS or software RAID to manage the drives rather than hardware RAID.
Power is provided by **a pair of 750W hot-plug redundant PSUs** (1+1), giving sufficient headroom for normal loaded operation. Cooling is provided by **8 performance fans** designated for the R640 chassis.
On the networking side, the system includes a **Broadcom 5720 quad port 1GbE LOM**, and dual **ConnectX-5 10/25GbE adapters** (slot 1 and slot 3), enabling high throughput connectivity paths. The config also indicates “LOT9 CE Value 25Gb Dual Port” adapters. These provide flexibility in mixed network environments.
Key Features
- Dual Intel Xeon Gold 5218R CPUs (20C / 40T each) for compute capacity Xeon Gold 5218R
- 768 GB DDR4 RDIMM (12 × 32 GB) for substantial memory capacity 768GB DDR4 memory
- Embedded SATA storage architecture (no dedicated RAID controller) PERCless embedded SATA
- 2 × 960 GB SATA Read-Intensive SSDs for fast media 960 GB SSD
- 750W redundant PSU (1+1) for power reliability 750W redundant PSU
- Broadcom 5720 quad 1GbE LOM + 2 ConnectX-5 10/25GbE NICs for versatile networking Broadcom 5720 LOM ConnectX-5 10/25GbE NIC
- iDRAC9 Enterprise remote management
- ReadyRails slide rails (without cable management) included
Configuration
Module / Component | Option / Value | Qty |
---|---|---|
Base | PowerEdge R640 Server (210-AKWU) | 1 |
Additional Processor | Intel Xeon Gold 5218R | 2 |
DIMM Blanks | For 2 CPU system | 1 |
Heatsinks | Standard 1U Heatsink (for both CPUs) | 2 |
Memory Profile | Performance Optimized | 1 |
Operating System | None (no OS) | 1 |
Media Kits | No media required | 1 |
Power Cords | C13 to C14, 10A, 2 m | 2 |
PCIe Riser | Config 2, 3 × x16 LP | 1 |
Motherboard | R640 MLK Motherboard | 1 |
iDRAC | iDRAC9 Enterprise | 1 |
Management Tools | OpenManage Enterprise Advanced | 1 |
Luggage Tag | Dell EMC Luggage Tag | 1 |
Internal Optical Drive | None for x4/x8 HDD chassis | 1 |
Systems Documentation | None, no OpenManage DVD | 1 |
Shipping Material | R640 for 8 HDD chassis | 1 |
Regulatory Marking | CE/CCC/BIS Marking | 1 |
Chassis | 2.5″ chassis with up to 8 drives + 3 PCIe slots, SATA only | 1 |
Embedded SATA RAID | No RAID with embedded SATA | 1 |
Storage Controller | No separate controller | 1 |
SSDs | 960 GB SATA Read-Intensive SSDs (hot-plug) | 2 |
Power Supply | Dual 750W hot-plug redundant | 1 |
TPM Module | None | 1 |
BIOS Setting | Performance BIOS | 1 |
Usage Intent | For embedded / server appliance use | 1 |
Support Program | CSO OEM Enterprise Program Support EMEA | 1 |
iDRAC Password | Legacy iDRAC password | 1 |
iDRAC Group Manager | Disabled | 1 |
ProSupport | One Data Center + 4hr Mission Critical 36 mo | 1 |
rNDC NIC | Broadcom 5720 quad 1GbE BASE-T | 1 |
Memory Modules | 32 GB RDIMM, 3200 MT/s | 12 |
Extended Warranty | ProSupport Extension 24 mo | 1 |
25GbE NIC | LOT9 CE Value 25Gb Dual Port | 2 |
Info / Tracking Module | Info / CS / Tracking EMEA | 1 |
Misc Info Module | SR000753877 Info | 1 |
ConnectX-5 NIC (slot1) | Mellanox ConnectX-5 10/25GbE LP | 1 |
ConnectX-5 NIC (slot3) | Mellanox ConnectX-5 10/25GbE LP | 1 |
OEM Tag | CS BK6L1B-01 OEM Tag R640 | 1 |
Config Services (HW Install) | Enterprise Hardware Installation | 2 |
Config Services (BIOS/iDRAC) | Custom BIOS / iDRAC settings | 1 |
Compatibility
The R640 supports dual Intel Xeon Scalable series CPUs. According to Dell’s spec sheet, it supports up to 24 DIMM slots and multiple front drive configurations (up to 10 NVMe or 12 × 2.5″ SAS/SATA) depending on backplane choice.
Your configuration uses a specific motherboard (MLK) and chassis variant (2.5″, up to 8 drives, SATA only), which constrains your storage options. The “No Controller” option means you rely on embedded SATA or OS-level RAID. Network adapters (Broadcom 5720, ConnectX-5) are valid expansion NICs for this platform.
Power and thermal design: dual 750W PSUs and 8 high performance fans align with Dell’s cooling/power envelope for dense R640 builds. The spec sheet also supports dual PSUs as standard.
Usage Scenarios
1) Virtualization & Application Hosting: This configuration is suitable for hosting virtual machines or microservices, given the dual CPUs and large memory pool.
2) Storage Node / Cache Server: With dual SSDs and the option to add high-speed NICs (ConnectX-5), the server can act as a caching / front end node in a storage architecture.
3) Network Bridge / Gateway: With multi-NIC support including 25GbE, it can serve as high throughput gateway or front end to larger networks or fabrics.
4) Lightweight SAN / FC Gateway: The included FC HBA enables connection to fibre channel fabrics; this server can bridge host compute and SAN layers.
5) Edge / Appliance Use: Given the “embedded / appliance” note in the config, this server is well suited to appliances, network functions, or compact edge compute boxes.
Frequently Asked Questions
-
Q: With “No Controller” selected, how is drive redundancy handled?
A: You must rely on operating system or software RAID, or use host-based RAID solutions. Without a hardware RAID controller, drive redundancy is managed at software level. -
Q: Can I upgrade to faster memory than 3200 MT/s?
A: The R640 platform supports various memory speeds depending on CPU and DIMM configuration. But with many modules populated, the memory may operate at lower speeds due to electrical constraints. -
Q: Are the ConnectX-5 NICs fully supported in this chassis?
A: Yes, provided your server has PCIe low-profile slots and firmware / driver support, the ConnectX-5 dual 10/25GbE NICs are valid high-speed network expansion options. -
Q: Why choose 750W PSUs instead of higher wattage units?
A: 750W dual redundant PSUs often suffice for many 1U R640 builds with SSDs and typical NICs. They offer efficiency and enough overhead for this configuration while keeping costs and heat manageable.
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