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Dell PowerEdge R7525

CurrentServers2U rack
Dell PowerEdge R75252U rack24 × SFF 2.5" bays2 sockets

The Dell PowerEdge R7525 is an enterprise 2U 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 24x 2.5-inch NVMe/SAS/SATA or 12x 3.5-inch SAS/SATA drives and Up to 8 PCIe Gen4 slots, the R7525 delivers balanced compute and I/O density for enterprise database, hypervisor, and application workloads.

Also written as: PowerEdge R7525, Dell R7525, R7525 Dual EPYC Server

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Specifications

BrandDell
FamilyPowerEdge R
Form factor2U rack
ReleasedFeb 2020
Cpu sockets2
Cpu platformAMD EPYC 7002 and 7003 Series Processors (up to 2x 64 cores, 280W cTDP)
Memory slots32
Memory typeDDR4-3200 RDIMM / LRDIMM
Memory max (GB)4,096
Drive baysUp to 24x 2.5-inch NVMe/SAS/SATA or 12x 3.5-inch SAS/SATA drives
Pcie slotsUp to 8 PCIe Gen4 slots
Gpu supportUp to 3x 300W double-wide or 6x 75W single-wide GPUs
Network onboard2x 1GbE LOM ports; OCP 3.0 mezzanine; 1x 1GbE iDRAC port
Power supplyDual redundant hot-plug 800W, 1100W, 1400W, 2000W or 2400W

Generations

About the R7525

The Dell PowerEdge R7525 is an enterprise 2U 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 R7525 balances throughput and memory capacity. In Dell's server catalog, the R7525 succeeded the POWEREDGE-R7425 and was followed by the POWEREDGE-R7625, positioned alongside rival systems including PROLIANT-DL385-GEN10-PLUS, THINKSYSTEM-SR665.

Options and compatibility

Processor support on the R7525 utilizes 2 embedded dual storage controllers sockets with thermal heatsinks matching CPU power envelopes. System memory slots on the R7525 require DDR4-3200 RDIMM / LRDIMM modules, and mixing RDIMM with LRDIMM memory is not supported. Front backplanes on the R7525 accommodate either proprietary array drive carrier or proprietary array drive carrier trays based on chassis option. Networking on the R7525 uses optical front-end host I/O modules, and expansion cards install into Up to 8 PCIe Gen4 slots risers.

How to identify it

Physical identification of the R7525 is verified by the Dell EMC enterprise storage array front fascia with the R7525 badge on the front chassis ear. The pull-out information tag on the R7525 control panel displays the 7-character Dell Service Tag and default login credentials. In Array Management Controller, the server identifies as R7525 with active firmware, slot mapping, and power telemetry.

Buying used

When evaluating a pre-owned R7525, 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 R7525 to verify zero uncorrectable ECC faults under load. Verify that redundant power supplies in the R7525 match in wattage and that Array Management Controller Enterprise remote console is enabled. Ensure required R7525 drive caddies and bracket accessories are present.

Compatible parts

Memory

SSDs

OCP adapters

Network adapters

RAID controllers

Other parts

Boot devices

Works together

How the Dell PowerEdge R7525 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

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)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

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)

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

Direct-attached SAS

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)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

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)

Storage

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

Plan and size it

Equivalent models from other brands

FAQ

What is the maximum memory speed of the R7525?

It supports DDR4-3200 across 32 DIMM slots with 1 DIMM per channel (1 DPC) or 2 DPC configurations.

How many PCIe Gen4 lanes does the R7525 provide?

It provides up to 160 PCIe Gen4 lanes across its expansion risers and front NVMe backplanes.

Buying or selling R7525?

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