Dell

Dell PowerEdge R640 Server, 2X Gold 6136, 16GB, 8x900GB (Renewed)

Dual Xeon Gold 6136 CPUs deliver 24 cores of 3 GHz compute in a 1U chassis built for high-density virtualization and database workloads.

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Overview

High-Performance Server Solution for Demanding Workloads

The Dell PowerEdge R640 offers exceptional performance and scalability in a compact 1U rack server. This renewed server is equipped with dual Intel Xeon Gold 6136 Twelve Core 3Ghz processors, 16GB of RAM, and eight 900GB 10K SAS drives, making it ideal for virtualization, database management, and other demanding applications.

Specifications:

  • Form Factor: 1U Rack Server
  • Hard Drive Bays: 8 x 2.5" Hot Plug
  • Processors: 2 x Intel Xeon Gold 6136 Twelve Core 3Ghz
  • RAM: 16GB
  • Hard Drives: 8 x 900GB 10K SAS
  • RAID Controller: H330

Pros & Cons

👍 Pros

  • 24 cores / 48 threads across dual Gold 6136 CPUs deliver high VM density in a single 1U chassis footprint
  • 8-bay hot-plug 2.5" SAS backplane supports 7.2TB raw capacity with online drive replacement under RAID
  • 1U form factor maximizes rack unit efficiency in dense data center or colocation deployments
  • iDRAC remote management allows out-of-band server administration without physical console access
  • Gold 6136's AVX-512 instruction support accelerates specific scientific, financial, and ML inference workloads

👎 Cons

  • 16GB RAM is critically undersized for a 24-core virtualization host — immediate RAM expansion is required before production use
  • H330 RAID controller lacks a battery-backed write cache (BBWC), which limits write performance under heavy transactional database load compared to H730/H740 controllers
  • Renewed status means drive health history is unknown — enterprise-grade monitoring and drive replacement budget should be factored into total cost
  • 1U chassis constrains cooling headroom; sustained full-core AVX-512 workloads will push the thermal envelope and may trigger throttling
  • PCIe slot count in 1U limits future I/O expansion compared to 2U equivalents like the R740

Frequently Asked Questions

Each Gold 6136 is a 12-core, 24-thread processor clocked at 3.0 GHz base with a 19.25MB L3 cache and support for AVX-512 instructions. Together, 24 cores and 48 threads make this configuration well-suited for virtualization (VMware ESXi, Hyper-V), database engines (SQL Server, MySQL), and parallel computation workloads where thread count directly translates to VM density or query throughput.
No — 16GB is well below the practical minimum for multi-VM deployments on a 24-core server. The R640 supports up to 1.5TB of DDR4 ECC RDIMM across 16 slots, so this unit ships in a configuration that should be treated as a starting point requiring RAM expansion before production deployment.
The H330 supports RAID 0, 1, 5, 6, 10, 50, and 60. Eight 900GB 10K SAS drives (7.2TB raw) configured in RAID 6 yields approximately 5.4TB of usable fault-tolerant storage with dual-drive failure protection — a common baseline for production database servers.
Renewed units are inspected, tested, and refurbished — typically by Dell Certified Refurbishers or third-party enterprise resellers. Drives, RAM, and power supplies are the components most commonly replaced during refurbishment. Buyers should verify the renewal grade and warranty terms from the specific seller.
The base R640 ships with onboard 1GbE via the iDRAC dedicated NIC and dual embedded Intel 1GbE ports. 10GbE requires an add-in NDA card (PCIe) or an optional OCP 10GbE mezzanine card — neither is confirmed included in this listing.