Dell PowerEdge R6715 Buyers Guide
Purpose-Built for High-Density Enterprise Workloads
Data Analytics — Accelerate complex queries and in-memory analytics with up to 160 Zen5 cores and 6 TB DDR5 bandwidth in a single 1U chassis.
Dense Virtualization — Consolidate more VMs per socket and reduce software licensing costs versus multi-socket alternatives, with full AMD SEV isolation per VM.
Software-Defined Storage — Pair extreme core count with up to 22 EDSFF Gen5 NVMe drives for industry-leading storage density per rack unit.
Data Warehouse & Databases — Handle large-scale parallel I/O with dual OCP 3.0 networking and all-PCIe Gen5 interconnects for low-latency transactional loads.
High-Performance Computing (HPC) — Leverage 160 cores, wide AVX support, and massive DDR5 memory bandwidth for scientific and engineering workloads.
eCommerce & Web Applications — Efficient single-socket density handles consistent, high-throughput web-tier workloads with predictable latency.
Cloud & Edge Deployments — 1U form factor maximizes rack space utilization; EPYC™ 9005 efficiency reduces per-node operating costs.
5th Gen AMD EPYC™ 9005 — Up to 160 Zen5 Cores per Socket
Single-socket platform — One AMD EPYC™ 9005 series processor; eliminates second-socket licensing overhead and simplifies thermal design.
Up to 160 cores — Options range from the EPYC 9015 (8 cores, 125W TDP) through the EPYC 9845 (160 cores, 390W TDP) to suit every budget and workload.
Zen5 architecture — New pipeline, improved IPC, native PCIe Gen5, 12-channel DDR5 support, and up to 400W maximum TDP envelope for the highest-core-count SKUs.
AMD Secure Encrypted Virtualization (SEV) — Hardware-level per-VM memory encryption protects tenant workloads from hypervisor-level access.
AMD Secure Memory Encryption (SME) — Full-system memory encryption with no software overhead, ideal for regulated-data environments.
PCIe link encryption & hotplug port reconfiguration — New 5th Gen EPYC 9005 capabilities strengthen I/O security and add rack configuration flexibility.
Performance uplift — Dell spec sheet projects up to 2× better performance vs. previous-generation EPYC designs for targeted multi-core workloads.
DDR5 RDIMM — 24 Slots, Up to 6 TB at 5200 MT/s
24 DDR5 DIMM slots — Double the slot count of the previous R6615 (12 slots), enabling far greater memory density in the same 1U footprint.
Speeds up to 5200 MT/s — or 4000 MT/s depending on DIMM population and rank; processor may reduce rated DIMM speed at full population.
DIMM sizes: 16 GB – 256 GB — Single-rank 16 GB, dual-rank 32 GB / 64 GB / 96 GB / 128 GB, and eight-rank 256 GB RDIMMs supported per slot.
Maximum capacity: 6 TB — Achieved with 24× 256 GB eight-rank RDIMMs; minimum system capacity starts at 16 GB with one 16 GB RDIMM.
ECC Registered DIMMs only — Ensures data integrity for mission-critical and always-on workloads; unbuffered and LRDIMMs are not supported.
Not hot-pluggable — Plan memory configuration at deployment; system must be powered off to add or replace DIMMs.
Seven Chassis Configurations — From SAS to EDSFF Gen5 NVMe
Diskless (no backplane) — Pure compute node configuration for workloads served entirely from network or DAS storage.
4× 3.5-inch SAS/SATA — Classic LFF layout for high-capacity spinning disk or large-format SSD deployments.
8× 2.5-inch Universal or U.2 NVMe — SAS/SATA/NVMe combo flexibility, or pure U.2 NVMe all-flash performance.
10× 2.5-inch SAS/SATA — Maximum traditional SFF drive density; also available with 4 additional Universal slots (10+4 config).
16× EDSFF E3.S Gen5 NVMe — Ultra-dense flash storage using the next-generation E3.S form factor at PCIe Gen5 throughput.
20× EDSFF E3.S Gen5 NVMe + 2× rear E3.S — Maximum configuration: 22 hot-swap Gen5 NVMe drives in a single 1U server.
Enterprise RAID & Storage Controllers — PERC H365i to H975i
PERC H365i — Entry-level internal RAID controller with 12 Gbps SAS/SATA support for standard configurations.
PERC H965i — Mid-range internal RAID with expanded cache and enhanced performance for I/O-intensive workloads.
PERC H975i — Flagship internal RAID controller; note that VMware ESXi support requires version 9.0 or later.
HBA465e — External HBA for non-RAID direct-attach storage; ideal for software-defined storage architectures.
H965e — External RAID-capable HBA for SAN-attached or shared external storage configurations.
No software RAID — The R6715 relies on hardware PERC controllers; software RAID (S160) is not supported on this platform.
BOSS-N1 DC-MHS — Dedicated OS Boot, Free Up Every Data Bay
Boot Optimized Storage Subsystem (BOSS-N1 DC-MHS) — A dedicated M.2 SSD module mounted separately from the front drive backplane.
Keeps all front bays free for data — No SAS, SATA, or NVMe bay is wasted on operating system media; maximizes revenue-generating storage capacity.
Hardware RAID mirror — Built-in redundancy for the boot volume protects against single-SSD failure without affecting primary storage.
DC-MHS form factor — Modern, modular hot-service design that supports quick field replacement without disturbing adjacent components.
Supported on all chassis configurations — From the diskless node through the 20× EDSFF configuration, BOSS-N1 DC-MHS is available across the full R6715 lineup.
iDRAC10 lifecycle integration — OS provisioning, firmware update, and system restore are managed through the iDRAC10 lifecycle controller.
GPU Acceleration — Up to 3× 75W Single-Width Cards
Up to 3× 75W single-width GPU cards — x16 PCIe Gen5 slots; ideal for inference, light compute offload, visualization, and parallel processing tasks in a 1U chassis.
PCIe Gen5 bandwidth — Each GPU slot connects at x16 Gen5, delivering up to 64 GT/s per slot for demanding GPU-to-memory throughput requirements.
Low-profile form factor required — Single-width, low-profile cards fit within the 1U height constraint; full-height cards are not supported in GPU configurations.
Riser configurations RC4, RC5, RC6 — Select riser configs (R2r+R4a, R2k+R4a, R2s+R4a) support up to three GPU cards simultaneously.
Dell-validated only — Only Dell-validated GPU cards are supported; installing non-validated PCIe devices voids the system warranty.
NVIDIA BlueField-3 DPU — Infrastructure Offload & Smart NIC
NVIDIA BlueField-3 B3220 DPU — 2× 200 GbE networking, PCIe Gen5 x16 interface, 150W TDP, FHHL form factor; supported via RC3 riser configuration (Riser 2q, Slot 1).
NVIDIA BlueField-3 B3140H DPU — 1× 400 GbE networking, PCIe Gen5 x16, 75W TDP, FHHL form factor; offloads network, storage, and security functions from the main EPYC CPU.
DPU riser compatibility — Riser 2q and Riser 4b both support DPU cards; DPUs require validated riser configurations (RC3 for B3220, TBD for B3140H).
Infrastructure offload — BlueField-3 DPUs implement network functions, encryption, and storage virtualization entirely in hardware, freeing EPYC CPU cores for application workloads.
System-on-chip design — DPUs combine ARM processing cores, high-performance NICs, and programmable acceleration engines in a single PCIe card.
Dell-validated only — DPU cards must be Dell-validated; unauthorized PCIe devices void the system warranty.
Up to 3 PCIe Gen5 x16 Slots — Five Riser Configurations
Slot 1 (Riser 2) — x16 Gen5, Full Height or Low Profile; primary expansion slot for high-bandwidth add-in cards.
Slot 2 — x16 Gen5, Low Profile, or second OCP 3.0 slot via Riser 2k; supports dual OCP NIC 3.0 cards simultaneously.
Slot 4 (Riser 4) — x16 Gen5, Full Height or Low Profile; secondary expansion for NICs, HBAs, or additional accelerators.
Slot 5 — x16 Gen5 OCP 3.0; dedicated OCP NIC slot independent of the main riser slots.
Five riser configurations — RC2 (R2r), RC3 (R2q+R4b), RC4 (R2r+R4a), RC5 (R2k+R4a), RC6 (R2s+R4a); each configuration is optimized for different card mix and cooling requirements.
Two onboard LP Gen5 slots — Available directly on the HPM (Host Processor Module) board before any riser is added, ensuring minimal-config flexibility.
Dual OCP 3.0 — Up to 400 GbE Connectivity in 1U
2× OCP NIC 3.0 card slots — Configurable to 1 GbE, 10 GbE, 25 GbE, 100 GbE, or 400 GbE per card; supports dual 200 GbE or single 400 GbE configs.
OCP 3.0 standard — Improved power delivery and PCIe Gen5 x16 lane width vs. OCP 2.0; enables higher-bandwidth cards in smaller form factors.
PCIe Add-in Card (AIC) NICs — Support for 100 GbE ×2 or 400 GbE ×1 (NDR VPI); plugs into standard PCIe Gen5 riser slots.
Fibre Channel HBA — FC32 and FC64 supported for SAN-connected storage environments requiring block-level Fibre Channel access.
1 Gb dedicated BMC Ethernet — Out-of-band management network on the DC-SCM module, completely independent of production NIC traffic.
DC-SCM (Datacenter-Secure Control Module) — Consolidates BMC, security, and management functions into a replaceable module for streamlined lifecycle management.
Hot-Swap Redundant PSUs — 800W to 1800W Platinum & Titanium
Two redundant M-CRPS 60mm PSUs — Both hot-swap capable; N+1 redundancy protects against single PSU failure without downtime.
800W Platinum or Titanium — 100–240 VAC or 240 VDC; entry-level PSU for lower-TDP processor configurations.
1100W Platinum or Titanium — 100–240 VAC or 240 VDC; mid-range option balancing efficiency and power envelope.
1500W Titanium — Available in 100–240 VAC mixed-mode or 277 VAC / HVDC Saf-D-Grid for high-density data center power configurations.
1800W Titanium (future availability) — 200–240 VAC or 240 VDC; supports the highest-core-count 400W TDP EPYC configurations. Check Dell.com for launch availability.
1400W Telco DC — −48 VDC input for telecom environments and edge deployments using DC power infrastructure.
SmartCooling Design — Air & Direct Liquid Cooling
Air cooling — Supports most processor configurations including TDPs up to 400W with High-Performance Silver (HPR SLVR) fans; standard fans (STD) handle lower-TDP SKUs.
Direct Liquid Cooling (DLC) — Removes all CPU thermal restrictions; no-restriction operation for the highest-core-count EPYC 9005 SKUs. Requires rack manifolds and a Cooling Distribution Unit (CDU).
Up to 4 sets of hot-plug dual fan modules — Each set is a dual fan module; hot-swap replaceable without powering down the system.
C-type heat sink — Used for all air-cooled processor configurations; shared across standard and HPR fan setups.
DLC heat sink — Liquid-cooled heat sink for DLC-configured systems; cold plate connects to the rack coolant loop.
ASHRAE A2 / A3 / A4 certified — Supports data center ambient temperatures of 35°C (A2), 40°C (A3), and 45°C (A4); restrictions apply at A3/A4 for GPU and high-TDP CPUs.
Front, Rear & Internal I/O — Comprehensive Connectivity
Front ports — 1× USB 2.0 Type-A (optional LCP KVM), 1× USB 2.0 Type-C (HOST/BMC Direct), 1× MiniDisplayPort (optional LCP KVM).
Rear ports — 2× USB 3.1 Type-A, 1× VGA (DB-15), 1× 1 Gb dedicated BMC Ethernet port on the DC-SCM module.
Internal port — 1× USB 3.1 Type-A for internal device attachment without consuming external I/O slots.
Optional LCP KVM module — Adds USB 2.0 and MiniDisplayPort to the Left Control Panel (LCP) for local KVM access without a separate KVM switch.
Quick Sync 2.0 — Optional LCP module; NFC/BLE wireless tap-to-manage using OpenManage Mobile on iOS or Android.
Express Service Tag — Slide-out label on front panel carrying Service Tag, NIC, MAC address, and iDRAC secure default password for fast identification and first login.
Cyber Resilient Architecture — Zero Trust, Silicon to Software
Silicon Root of Trust — Hardware-anchored boot integrity that validates every layer of firmware from silicon through BIOS before any code executes.
AMD Secure Encrypted Virtualization (SEV) — Per-VM memory encryption isolates virtual machine memory from the hypervisor, OS, and other VMs.
AMD Secure Memory Encryption (SME) — Full system memory encryption in hardware; protects against physical memory attacks without software overhead.
TPM 2.0 (FIPS & CC-TCG certified) — Hardware security module for secure key storage, remote attestation, and drive encryption key management.
Cryptographically signed firmware — Every firmware image is digitally signed; tamper-evident supply chain assurance from factory to data center.
Secured Component Verification — Hardware integrity check at power-on validates that all installed components match the Dell-qualified bill of materials.
System Lockdown, Secure Boot, Secure Erase, Chassis Intrusion Detection — Defense-in-depth layers covering configuration management, boot security, data destruction, and physical tamper alerting.
iDRAC10 — Autonomous Operations & Out-of-Band Management
iDRAC10 (Express, Enterprise, Datacenter) — Next-generation lifecycle controller with autonomous monitoring, alerting, and remediation capabilities.
iDRAC Direct (USB Type-C front panel) — Direct browser-based management session without a network connection; ideal for initial configuration and break-fix scenarios.
iDRAC RESTful API with Redfish — Industry-standard programmatic management interface; compatible with Ansible, Terraform, and custom automation scripts.
RACADM CLI — Scriptable command-line management for batch configuration, firmware update, and inventory collection across server fleets.
Quick Sync 2.0 — Optional NFC/BLE module enables wireless tap-to-manage via OpenManage Mobile on iOS or Android devices.
OpenManage Enterprise (OME) — Centralized fleet management console with Power Manager, Update Manager, and APEX AIOps Observability for predictive analytics.
Integrations — Native Red Hat Ansible Collections, Terraform Providers, VMware vCenter/Aria Operations, and Microsoft System Center support for infrastructure-as-code workflows.
Certified for Major Enterprise Operating Systems & Hypervisors
Microsoft Windows Server with Hyper-V — Full enterprise virtualization and Windows Server workload support with Dell-certified drivers and firmware.
Red Hat Enterprise Linux (RHEL) — Production-ready Linux platform with full Dell hardware certification for mission-critical Linux deployments.
Canonical Ubuntu Server LTS — Widely used in cloud-native, DevOps, and AI/ML environments; certified for long-term support releases.
SUSE Linux Enterprise Server (SLES) — Robust enterprise Linux for SAP HANA, HPC, and high-availability clustering workloads.
VMware ESXi — Industry-leading hypervisor; note that PERC H975i storage controller requires ESXi 9.0 or later for full support.
PXE boot & network provisioning — Network-based OS deployment managed through iDRAC10 lifecycle controller; press F12 during POST to initiate PXE boot.
Dell-certified OS drivers — Available via Dell Support site and iDRAC10 virtual media for all certified operating systems and hypervisors.
Rack-Ready — Universal Rail Kit & Cable Management
Standard 19-inch rack compatibility — 1U height (42.8mm); fits all standard EIA-310 compliant racks with appropriate rail depth range.
Rail adjustability — Supports multiple rack mounting flange types and depths; consult the Dell Enterprise Systems Rail Sizing and Rack Compatibility Matrix for specifics.
Cable Management Arm (CMA) — Optional accessory for organized rear cable routing; helps maintain airflow and simplifies cable management in dense racks.
Tool-free drive installation — Hot-swap drive carriers on backplane configurations snap in and out without tools, reducing maintenance time.
Optional front metal bezel — Lockable security bezel protects drive bays from unauthorized access in shared or public-area deployments.
System weight: up to 21.19 kg (46.71 lbs) — At full drive population; two-person lift recommended for most configurations; server lift required for 70+ lb loads.
R6715 vs. R6615 — What’s New in 17th Generation
5th Gen AMD EPYC 9005 Zen5 (up to 160 cores) — Versus 4th Gen EPYC 9004 Genoa (up to 128 cores); a 25% core count increase at the top end.
24 DDR5 DIMM slots vs. 12 — The R6715 doubles the memory slot count of the R6615, enabling up to 6 TB vs. the R6615’s capacity ceiling.
Memory speed: 5200 MT/s vs. 4800 MT/s — Faster DDR5 speeds translate directly to higher memory bandwidth for analytics and HPC workloads.
iDRAC10 vs. iDRAC9 — Next-generation lifecycle controller with enhanced autonomous operations, APEX AIOps Observability, and deeper automation integrations.
4 fan sets vs. 3 — Additional cooling capacity supports higher-TDP processors and denser configurations while maintaining ASHRAE compliance.
All-PCIe Gen5 slots vs. Gen5/Gen4 mix — Every PCIe slot on the R6715 is Gen5; the R6615 mixed Gen5 and Gen4, creating bandwidth bottlenecks for Gen5 cards.
| Feature | R6715 (Gen 17) | R6615 (Gen 16) |
|---|---|---|
| Processor | AMD EPYC 9005 Zen5, up to 160 cores | AMD EPYC 9004 Genoa, up to 128 cores |
| DDR5 DIMM Slots | 24 | 12 |
| Memory Speed | Up to 5200 MT/s | Up to 4800 MT/s |
| Max Memory | 6 TB | Lower capacity (12 slots) |
| Embedded Management | iDRAC10 | iDRAC9 |
| Fan Sets | Up to 4 (dual fan modules) | Up to 3 (dual fan modules) |
| PCIe Slots | Up to 3× Gen5 x16 (all Gen5) | Up to 3× Gen5/Gen4 mix |
| Max CPU TDP | 400W | 360W |
| Cooling | Air + DLC | Air + DLC |
| Form Factor | 1U rack server | 1U rack server |
Dell ProSupport & ProDeploy — End-to-End Coverage
ProSupport Infrastructure Suite — 24×7×365 expert access with mission-critical SLAs; dedicated support engineers for complex multi-system environments.
ProDeploy Infrastructure Suite — Deployment services ranging from basic installation through full implementation and OS/application configuration.
Professional Services for AI — Accelerate AI and analytics use cases with guided architecture, implementation, and optimization engagements.
ProSupport Plus — Includes SupportAssist automated predictive issue detection, proactive case creation, and diagnostic collection before a failure impacts production.
Secure Connect Gateway (SCG) — Optional automated support service; monitors devices, detects hardware issues, opens support cases, and uploads diagnostics without manual intervention.
Global coverage — Services backed by 60,000+ employees and partners across 170+ locations worldwide, ensuring local support for distributed data center deployments.
Energy Efficiency & Responsible Lifecycle Design
Titanium-rated PSUs — Highest efficiency class at up to 96% at 50% load; reduces per-server power draw and lowers data center PUE.
SmartCooling architecture — Most configurations are air-cooled, reducing dependency on chilled-water infrastructure and associated capital costs.
Direct Liquid Cooling (DLC) — Reduces heat rejection to the raised floor, enabling higher data center ambient temperatures and further energy savings at the facility level.
EPYC 9005 performance-per-watt — 5th Gen Zen5 architecture delivers more compute per watt than previous-generation EPYC designs, reducing server count for equivalent workloads.
Responsible end-of-life — Dell Technologies take-back and recycling services are available in select countries; go to Dell’s How to Recycle page to request collection.
Recycled materials & packaging — PowerEdge portfolio incorporates recycled content in products and packaging to reduce manufacturing carbon footprint.
Frequently Asked Questions — Dell PowerEdge R6715
The Dell PowerEdge R6715 supports a maximum of 6 TB of DDR5 ECC RDIMM memory across its 24 DIMM slots, achieved using 24× 256 GB eight-rank RDIMMs. Memory speeds run up to 5200 MT/s, and the system supports DIMM capacities from 16 GB all the way up to 256 GB per slot. This is double the slot count of the previous R6615, making the R6715 the clear choice for memory-intensive workloads like in-memory analytics, dense virtualization, and large-footprint databases.
The Dell PowerEdge R6715 supports up to 22 hot-swap drives in its maximum configuration: 20 EDSFF E3.S Gen5 NVMe drives in the front bays plus 2 additional rear EDSFF E3.S Gen5 NVMe drives. Other chassis configurations include up to 10× 2.5-inch SAS/SATA drives, 8× U.2 NVMe SSDs, 16× EDSFF E3.S Gen5 NVMe, or 4× 3.5-inch SAS/SATA. A diskless no-backplane configuration is also available for pure compute deployments.
Yes, the Dell PowerEdge R6715 supports both air cooling and Direct Liquid Cooling (DLC). Air cooling handles most processor configurations up to 400W TDP using High-Performance Silver fans and the C-type heat sink. DLC removes all CPU thermal restrictions, making it the required option for the highest-core-count EPYC 9005 SKUs in constrained thermal environments. DLC requires a rack-mounted Cooling Distribution Unit (CDU) and manifold infrastructure. There are no thermal restrictions on processor TDP when DLC is configured.
Yes. Express Computer Systems stocks professionally reconditioned refurbished Dell PowerEdge R6715 servers tested, cleaned, and configured to your specifications — ready to deploy at significant cost savings versus new. Shop refurbished Dell R6715 servers at ECS.
The R6715 (Gen 17) is a significant upgrade over the R6615 (Gen 16) across every major subsystem. The processor jumps from 4th Gen EPYC Genoa (up to 128 cores) to 5th Gen EPYC 9005 Zen5 (up to 160 cores), memory slots double from 12 to 24 DDR5 DIMMs (enabling up to 6 TB), and memory speeds improve from 4800 MT/s to 5200 MT/s. The R6715 also introduces iDRAC10 (replacing iDRAC9), adds a fourth fan set for improved thermal headroom, and standardizes on all-PCIe Gen5 slots versus the R6615’s mixed Gen5/Gen4 configuration.
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