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Dell PowerEdge R640 Server Gold 6136 192GB RAM Renewed

A twelve-core Xeon Gold 6136 at 3GHz with 192GB ECC RAM delivers enterprise-grade parallel compute in a 1U chassis built for sustained datacenter load.

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Overview

Reliable Performance with Dell PowerEdge R640 Server

The Dell PowerEdge R640 is a high-performance server designed to deliver reliability and efficiency for demanding workloads. Featuring powerful processors, ample memory, and flexible storage options, this server is ideal for data centers and enterprise environments.

Dell PowerEdge R640 Specifications:

  • Form Factor: 8 x 2.5 Hot Plug
  • Processor: Gold 6136 Twelve Core 3Ghz
  • Memory: 192GB RAM
  • RAID Controller: H730

Pros & Cons

👍 Pros

  • The Xeon Gold 6136's twelve cores and twenty-four threads at 3.0GHz base clock deliver strong single-threaded and multi-threaded performance across virtualization and database workloads.
  • 192GB of ECC DDR4 RAM provides robust capacity for running multiple VMs or large in-memory datasets, with error correction protecting data integrity under sustained load.
  • The 1U form factor maximizes rack density — critical in environments where rack space is a cost center.
  • The PERC H730 controller with NV cache enables write-back RAID configurations without the data-loss risk of write-through caching.
  • The 8x 2.5-inch hot-plug bay configuration allows drive replacement without downtime, a non-negotiable feature in production environments.

👎 Cons

  • Single-socket configuration means workloads that scale with NUMA topology (large HPC jobs, high-thread-count databases) will hit a ceiling that a dual-socket R640 would not.
  • No operating system is included, adding procurement and deployment time before the unit can go into production.
  • As a Skylake-SP generation system, it does not support PCIe 4.0 — NVMe storage and GPU expansion are limited to PCIe 3.0 bandwidth (approximately 985MB/s per lane).
  • ECC DDR4-2666 RDIMMs for this platform are a specific procurement requirement — mismatched DIMMs will cause downclocking or POST failures.
  • Renewed units carry no original OEM warranty; coverage depends entirely on the reseller's refurbishment terms.

Frequently Asked Questions

It ships with a single Intel Xeon Gold 6136 — a twelve-core, twenty-four-thread processor running at 3.0GHz base with up to 3.7GHz Turbo. The Gold 6136 is a Skylake-SP die with a 24.75MB L3 cache and 10.4 GT/s UPI interconnect, making it well-suited for parallelized compute tasks: virtualization hosts, containerized workloads, CI/CD pipelines, and database servers.
The R640 supports up to 1.5TB of DDR4 across 24 DIMM slots (12 per processor socket). This unit ships with 192GB, which leaves significant expansion headroom. Note that the Gold 6136 supports DDR4-2666 ECC RDIMM/LRDIMM — matching the right DIMM type and speed is critical to avoid downclocking.
It includes the PERC H730 controller with 1GB non-volatile cache, supporting RAID levels 0, 1, 5, 6, 10, 50, and 60. The H730 supports 12Gb/s SAS and 6Gb/s SATA drives, and its NV cache protects write-back operations during unexpected power loss.
No operating system is included with this renewed unit. Dell supports Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, and Ubuntu Server on this platform.
This unit has been refurbished and tested to operational standards, but it is not new hardware. Components may show wear consistent with prior datacenter use. Verify iDRAC lifecycle logs after receipt to understand prior configuration and any replaced components.

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