Dell PowerEdge R6525

Name: Dell PowerEdge R6525
Brand: Dell

CurrentServers1U rack

The Dell PowerEdge R6525 is an enterprise 1U rack server powered by 2 AMD EPYC 7002 and 7003 Series Processors (up to 2x 64 cores, 280W cTDP) and 32 memory slots supporting up to 4096GB DDR4-3200 RDIMM / LRDIMM. Configured with Up to 10x 2.5-inch NVMe/SAS/SATA or 4x 3.5-inch SAS/SATA drives and Up to 3 PCIe Gen4 slots, the R6525 delivers balanced compute and I/O density for enterprise database, hypervisor, and application workloads.

Also written as: PowerEdge R6525, Dell R6525, R6525 1U Server

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Specifications

Brand	Dell
Family	PowerEdge R
Form factor	1U rack
Released	Feb 2020
Cpu sockets	2
Cpu platform	AMD EPYC 7002 and 7003 Series Processors (up to 2x 64 cores, 280W cTDP)
Memory slots	32
Memory type	DDR4-3200 RDIMM / LRDIMM
Memory max (GB)	4,096
Drive bays	Up to 10x 2.5-inch NVMe/SAS/SATA or 4x 3.5-inch SAS/SATA drives
Pcie slots	Up to 3 PCIe Gen4 slots
Gpu support	Up to 3x 75W single-wide PCIe GPUs
Network onboard	2x 1GbE LOM ports; OCP 3.0 mezzanine; 1x 1GbE iDRAC port
Power supply	Dual redundant hot-plug 800W, 1100W or 1400W Platinum/Titanium

Generations

Next generation: Dell PowerEdge R6625

About the R6525

The Dell PowerEdge R6525 is an enterprise 1U rack server engineered for computing and virtualization workloads. Powered by 2 AMD EPYC 7002 and 7003 Series Processors (up to 2x 64 cores, 280W cTDP) across 32 memory slots supporting up to 4096GB DDR4-3200 RDIMM / LRDIMM, the R6525 balances throughput and memory capacity. In Dell's server catalog, the R6525 was followed by the POWEREDGE-R6625, positioned alongside rival systems including PROLIANT-DL365-GEN10-PLUS, THINKSYSTEM-SR645.

Options and compatibility

Processor support on the R6525 utilizes 2 embedded dual storage controllers sockets with thermal heatsinks matching CPU power envelopes. System memory slots on the R6525 require DDR4-3200 RDIMM / LRDIMM modules, and mixing RDIMM with LRDIMM memory is not supported. Front backplanes on the R6525 accommodate either proprietary array drive carrier or proprietary array drive carrier trays based on chassis option. Networking on the R6525 uses optical front-end host I/O modules, and expansion cards install into Up to 3 PCIe Gen4 slots risers.

How to identify it

Physical identification of the R6525 is verified by the Dell EMC enterprise storage array front fascia with the R6525 badge on the front chassis ear. The pull-out information tag on the R6525 control panel displays the 7-character Dell Service Tag and default login credentials. In Array Management Controller, the server identifies as R6525 with active firmware, slot mapping, and power telemetry.

Buying used

When evaluating a pre-owned R6525, inspect the embedded dual storage controllers CPU socket pins for damage and ensure retention clips are intact. Run Dell ePSA diagnostics across all 32 memory slots of the R6525 to verify zero uncorrectable ECC faults under load. Verify that redundant power supplies in the R6525 match in wattage and that Array Management Controller Enterprise remote console is enabled. Ensure required R6525 drive caddies and bracket accessories are present.

Compatible parts

Memory

370-AEVR Dell 64GB 2Rx4 DDR4-3200 RDIMM ECC Registered Memory
370-AEVT Dell 128GB DDR4-3200 Quad Rank LRDIMM 288-pin Memory Module
370-AEVU Dell 256GB DDR4-3200 Octal Rank 3DS LRDIMM Memory Module

RAID controllers

PERC-H755N Dell PERC H755N Front NVMe PCIe Gen4 8GB NV Cache Hardware RAID Controller
PERC-H755 Dell PERC H755 Front SAS 12Gb/s 8GB NV Cache PCIe Gen4 RAID Controller

Other parts

PERC-H745

Boot devices

BOSS-S2 Dell Boot Optimized Storage Solution (BOSS-S2) Hot-Plug Rear Controller with Dual M.2 SSDs

Works together

How the Dell PowerEdge R6525 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SAN iSCSI and NVMe/TCP over Ethernet Direct-attached SAS File storage (NFS and SMB)

Fibre Channel SAN

Serverwith an FC HBAFC switchtwo fabrics, A and BStorage arrayFC host ports

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

540-BBUU Dell Emulex LPe31002 Dual Port 16Gb Fibre Channel Host Bus Adapter
540-BBUV Dell QLogic 2692 Dual Port 16Gb Fibre Channel Host Bus Adapter
540-BCMS Dell QLogic 2770 Single Port 32Gb Fibre Channel PCIe Adapter
540-BCMT Dell QLogic 2772 Dual Port 32Gb Fibre Channel PCIe Adapter

Switches

Storage

Optics

407-BBOG Dell 16Gb Short Wave SFP+ Fibre Channel Optical Transceiver
407-BCBI Dell 32Gb Short Wave SFP28 Fibre Channel Optical Transceiver
407-BBOH Dell 8Gb Short Wave SFP+ Fibre Channel Optical Transceiver

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Server10/25/100GbE NICEthernet switchstorage VLAN, two switchesStorage arrayiSCSI or NVMe/TCP ports

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

540-BBHG Dell Intel X520/I350 2x10GbE SFP+ + 2x1GbE BASE-T Network Daughter Card (rNDC)
540-BBHH Dell Intel X540/I350 2x10GBASE-T + 2x1GbE BASE-T Network Daughter Card (rNDC)
540-BBIU Dell Broadcom 57416/5720 2x10GBASE-T + 2x1GbE Network Daughter Card (rNDC)
540-BBIV Dell Broadcom 57412/5720 2x10GbE SFP+ + 2x1GbE Network Daughter Card (rNDC)

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

Serverexternal SAS HBASAS cableMini-SAS HD, no switchArray or JBODSAS host ports or EMM

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

405-AANT Dell 12Gbps SAS HBA Dual Port External PCIe Controller
405-AASU Dell HBA355e External SAS 12Gb/s Host Bus Adapter

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Server or clientEthernet NICEthernet switchdata or storage VLANNAS or scale-outNFS, SMB, S3 ports

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

540-BBHG Dell Intel X520/I350 2x10GbE SFP+ + 2x1GbE BASE-T Network Daughter Card (rNDC)
540-BBHH Dell Intel X540/I350 2x10GBASE-T + 2x1GbE BASE-T Network Daughter Card (rNDC)
540-BBIU Dell Broadcom 57416/5720 2x10GBASE-T + 2x1GbE Network Daughter Card (rNDC)
540-BBIV Dell Broadcom 57412/5720 2x10GbE SFP+ + 2x1GbE Network Daughter Card (rNDC)

Storage

File storage (NFS and SMB): how it fits together

Plan and size it

Draw this setup in the topology planner mrplanb.com
Add up rack power and space rack-density.com
Virtualization storage Ledger: scored storage platforms mrplanb.com
SAN transport and NVMe over FC for backup mrplanb.com
Dell E-Lab Navigator (Dell interoperability) dell.com

Equivalent models from other brands

HPE Proliant DL365 Gen10 Plus
Lenovo ThinkSystem SR645 · compare

FAQ

What is the maximum core count of the PowerEdge R6525?

With dual 64-core AMD EPYC 7763 or 7713 processors, the R6525 provides 128 cores and 256 threads in 1U.

Does the R6525 support PCIe Gen4 NVMe drives?

Yes, up to 10 front NVMe Gen4 SSDs are supported with direct motherboard PCIe connections.

Buying or selling R6525?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources

Dell PowerEdge R6525 Spec Sheet, checked 2026-10-27