Dell PowerEdge R7425
The Dell PowerEdge R7425 is a 2U dual-socket enterprise rack server powered by two AMD EPYC 7001 or 7002 series processors, scaling up to 128 cores and 256 threads. Engineered for high-throughput virtualization, memory-bound database systems, and high-performance computing, the R7425 provides 32 DDR4 DIMM slots supporting up to 4TB of memory and up to 24 front NVMe drives. Its massive core density and memory bandwidth deliver excellent performance in analytics clusters. Second-hand server evaluators should verify dual SP3 socket conditions and ensure high-wattage power supplies are present.
Also written as: PowerEdge R7425, Dell R7425, R7425 Dual EPYC Server
Specifications
| Brand | Dell |
|---|---|
| Family | PowerEdge R |
| Form factor | 2U rack |
| Released | Feb 2018 |
| End of sale | Jun 2021 |
| End of support | Oct 2026 |
| Cpu sockets | 2 |
| Cpu platform | AMD EPYC 7001 and 7002 Series Processors (up to 2x 64 cores, 200W cTDP) |
| Memory slots | 32 |
| Memory type | DDR4-2666 RDIMM / LRDIMM |
| Memory max (GB) | 4,096 |
| Drive bays | Up to 24x 2.5-inch NVMe/SAS/SATA or 12x 3.5-inch SAS/SATA drives |
| Pcie slots | Up to 8 PCIe Gen3 slots |
| Gpu support | Up to 3x 300W double-wide or 6x 150W single-wide GPUs |
| Network onboard | Network Daughter Card (NDC) slot; 1x 1GbE iDRAC9 port |
| Power supply | Dual redundant hot-plug 750W, 1100W, 1600W, 2000W or 2400W |
Generations
- Next generation: Dell PowerEdge R7525
Compatible parts
RAID controllers
PERC-H730P Dell PERC H730P 12Gb/s SAS 2GB NV Cache Mini Mono / PCIe RAID Controller
Boot devices
BOSS-S1 Dell Boot Optimized Storage Solution (BOSS-S1) PCIe Card with Dual M.2 SSDs
Works together
How the Dell PowerEdge R7425 connects to servers, storage and the network: 4 ways, with the parts and products on each path.
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)
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
Lenovo ThinkSystem DB630S 2U rack
Lenovo ThinkSystem DB610S 1U rack
Lenovo ThinkSystem DB730S 2U rack
Storage
Dell PowerVault ME4012 2U rack
Dell PowerVault ME4024 2U rack
Dell PowerVault ME4084 5U rack
Dell Unity XT 380F 2U rack
Dell Unity XT 380XT 2U rack
Dell Unity XT 480F 2U rack
Optics
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)
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)
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)
405-AANT Dell 12Gbps SAS HBA Dual Port External PCIe Controller
405-AASU Dell HBA355e External SAS 12Gb/s Host Bus Adapter
Storage
- Dell PowerVault ME4012 2U rack
- Dell PowerVault ME4024 2U rack
- Dell PowerVault ME4084 5U rack
Dell PowerVault ME5012 2U rack
Dell PowerVault ME5024 2U rack
Dell PowerVault ME5084 5U rack
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)
- 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
Lenovo ThinkSystem DM3000H 2U rack
Lenovo ThinkSystem DM5100F 2U rack
Lenovo ThinkSystem DM3010H 2U rack
Lenovo ThinkSystem DG5000 2U rack
Lenovo ThinkSystem DM3200F 2U rack
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 DL385 Gen10
Buying a used R7425: what to check
Confirm SP3 socket pins are undamaged, verify BIOS supports Rome processors, test all 32 memory slots, and verify 1600W+ power supplies are installed.
FAQ
What is the maximum core count on the R7425?
With dual AMD EPYC 7002 series processors installed, the R7425 supports up to 128 cores and 256 threads.
Does the R7425 support 24 direct NVMe drives?
Yes, with the appropriate PCIe expander risers, it supports 24 direct-attached 2.5-inch NVMe SSDs.
Buying or selling R7425?
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.
Sources
- Dell PowerEdge R7425 Spec Sheet, checked 2026-10-27