Dell R640 Server — Refurbished PowerEdge R640, Custom-Built
The Dell PowerEdge R640 (Dell R640) is a 1U, two-socket rack server from Dell’s 14th generation (launched 2017) — dual Intel Xeon Scalable sockets, 24 DIMM slots, and up to 10 NVMe-capable bays in a single rack unit make it the 1U workhorse of the refurbished market. PC Server & Parts sells more R640s than almost any other model: build yours to spec and we’ll test it under load and back it with a free 1-year warranty. See all Dell servers or the complete refurbished server catalog.
Dell R640 Specs at a Glance
| Form factor | 1U rack server |
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| Processors | 2× 1st/2nd Gen Intel Xeon Scalable, up to 28 cores each |
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| Memory | 24 DIMM slots, DDR4-2933 — up to 3 TB |
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| Drive bays | 4× 3.5″, 8× 2.5″, or 10× 2.5″ (NVMe options) |
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| Storage controllers | PERC H330 / H730P / H740P |
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| Management | iDRAC9 |
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| Generation / released | Dell 14G, launched 2017 |
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Choose Your Dell R640 Chassis
Every chassis opens a Build-Your-Own configurator — choose CPUs, memory, drives, and networking, and we assemble and test the complete server before it ships. Don’t see the layout you need? Request a quote.
What the Dell R640 Is Best At
The R640 is the standard building block for virtualization farms, web and application tiers, scale-out databases, and co-location racks where 1U density and power efficiency drive cost. The 10-bay NVMe chassis turns it into a serious all-flash node for VMware vSAN or Ceph at a used-market price.
Dell R640 vs Related Models
- Dell R740 — the 2U counterpart with more bays and GPU room.
- Dell R650 — the 15th-gen successor: Ice Lake cores and PCIe Gen4.
- Dell R440 — the budget 1U alternative with 16 DIMM slots.
Why Buy a Refurbished Dell R640 from PCSP
Every PCSP R640 is professionally refurbished in Michigan: cleaned, inspected, firmware-updated, and burn-in tested before shipping free to the lower 48 with a 1-year warranty (extendable to 5 years). Need a rack of them? Volume quotes turn around fast.
Frequently Asked Questions
What CPUs does the Dell R640 support?
One or two 1st/2nd Gen Intel Xeon Scalable processors — from budget Silver 4110s to 28-core Platinum 8280s. 2nd Gen Cascade Lake parts (5200/6200/8200 series) offer the best used-market value and support DDR4-2933.
How much memory can a PowerEdge R640 take?
24 DDR4 DIMM slots support up to 3 TB with 128 GB LRDIMMs. Most refurbished builds land between 128 GB and 768 GB with 32 GB/64 GB RDIMMs — still the cheapest path to high-memory 1U hosts in 2026.
R640 vs R650 — which should I buy?
Buy the R640 when budget rules: it delivers 80–90% of typical workload performance at a much lower price. Buy the R650 when you need PCIe Gen4 NVMe, DDR4-3200, 40-core Ice Lake CPUs, or maximum consolidation headroom for the next 5+ years.
What warranty comes with a refurbished Dell R640?
Every configured Dell R640 ships with a free 1-year PCSP warranty covering replacement parts, labor, and shipping on covered failures. Coverage can be extended to up to 5 years at checkout, and on-site service tiers (8×5 next-business-day and 24×7×4) are available for production environments.
What if I don't see the Dell R640 configuration I need?
Every chassis links to a configurator where you select processors, RAM, storage, and networking, and each build is assembled and tested in our Michigan facility. Need something the configurator doesn’t show — specific drives, GPUs, an OS pre-install, or a bulk order? Submit a quote request and we’ll put the exact spec together.
