





(List below serves as quick links to each section)
2U rack server
Processor | Max: 32 Cores2x AMD Gen 1 EPYC
Memory | Max: 128GB32 ECC DDR4 RDIMM/LRDIMM 2666Mhz
Front bays: 8, 12 LFF or 24 SFF SAS/NL-SAS/SATA (HDD/SSD) NVMe
Mid Bay: 4 LFF SAS/SATA (HDD) or 4 SFF SSD NVMe
Rear bay: 2 LFF or 4 SFF SAS/SATA (HDD/SSD)
Boot Optimized Server Storage (BOSS-S1)
Internal Dual SD module (IDSDM)
Internal USB
H330, H730P, H740P, H840, HBA330, 12Gbps SAS HBA
NIC/LOM4 x 1GE or 2 x 10GE + 2 x 1GE or 4 x 10GE or 2 x 25GE
Remote Management:iDRAC9 Express (default) with Lifecycle Controller
PCIe Slots:Up to 8 PCIe 3.0 slots (6x 16 + 2x 8)
GPU: 3 DW(Click to View)
The PowerEdge R7425 platform delivers outstanding TCO for data analytics, hybrid cloud and scale up software-defined deployments. Easily add extreme memory and storage capacity for low latency, data intensive workloads. With up to 64 cores, 128 PCIe lanes, and up to 32 DIMMs, the R7425 provides the balance of compute to I/O that gives you the freedom to take on challenging data intensive projects.
The Dell PowerEdge R7425 enables fast workload performance on more cores for cutting edge application efficiency. With up to 2 enterprise class AMD EPYC processors under the hood, the R7425 offers an adaptable architecture for diverse workloads and environments.
The Dell EMC OpenManage systems management portfolio delivers peak efficiency for PowerEdge servers through intelligent, automated management of routine tasks. Combined with unique agent-free management capabilities, the R7425 is simply and easily managed, freeing up more time for your high profile projects.
Every PowerEdge server is designed with a cyber-resilient architecture, integrating security deeply into the complete server life cycle. The R7425 leverages new security features built into every new PowerEdge server strengthening protection so you can reliably and securely deliver accurate data to your customers no matter where they are. By considering each aspect of system security, from design to retirement, Dell EMC ensures trust and delivers a worry-free, secure infrastructure without compromise.
The 1U Heat sink is needed when a CPU with a TDP of 120-170W is installed.
1U High PerformanceWhen the mid-drive tray is installed but you have a CPU with over 180/200W TDP.
2UThe 2U Heat sink is needed when you have a CPU over 180 TDP and only PCIe cards installed.

The mid drive tray is supported only in 32 drives and 18 drives system configurations
It will accept SAS, SATA or Nearline SAS drive in slots 14 to 17.
The rear drive bay supports 2x 3.5" LFF Drives or 4x 2.5" SFF Drives.
4x 2.5" rear drive cage is supported only in 32 drives system configuration, and
2x 3.5" rear drive cage is supported only in 18 drives system configuration.
| Configuration | Description |
|---|---|
| 8 drives system |
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| 12 drives system |
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| 18 drives system |
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| 24 drives system |
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| 24 drives system |
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| 24 drives system |
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| 32 drives system |
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| NOTE: Universal slots are slots that support SAS, SATA hard drives/SSDs, or NVMe drives in the same slot. | |
| NOTE: Hot swap for the NVMe drives is supported for your system. | |
| DIMM type | DIMM rank | DIMM capacity | Single processor | Dual processors | ||
|---|---|---|---|---|---|---|
| Min RAM | Max RAM | Min RAM | Max RAM | |||
| LRDIMM | Octal rank | 128 GB | 128 GB | 2 TB | 256 GB | 4 TB |
| LRDIMM | Octal rank | 64 GB | 64 GB | 1 TB | 128 GB | 2 TB |
| RDIMM | Dual rank | 32 GB | 32 GB | 512 GB | 64 GB | 1024 GB |
| RDIMM | Dual rank | 16 GB | 16 GB | 256 GB | 32 GB | 512 GB |
| RDIMM | Single rank | 8 GB | 8 GB | 128 GB | 16 GB | 256 GB |
BOSS-S1
IDSDM
Internal USB
The PowerEdge R7425 system supports up to eight PCI Express (PCIe) Generation 3 expansion cards that can be installed on the systemboard using expansion card risers. The following table provides detailed information about the expansion card riser specifications:
| Riser configuration and supported risers | Slot description | PCIe slots on riser (Height and length) | Processor connection |
|---|---|---|---|
| Riser configuration 0 (No riser) Without rear storage |
No PCIe slots and rear storage | N/A | N/A |
| Riser configuration 1 (1D) With or without rear storage |
Two x8 and one x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Riser configuration 2 (1D+2C) With or without rear storage |
Two x8 and two x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Slot 4: x16 low profile, half length | Processor 2 | ||
| Riser configuration 3 (1D+2D) |
Three x8 and three x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 1 | ||
| Slot 5: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Riser configuration 4 (1A+2A+3A) |
Two x8 and four x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 3: x16 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x8 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 | ||
| Riser configuration 5 (1D+2A+3A) |
Four x8 and three x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x8 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 | ||
| Riser configuration 6 (1E+2D+3B) |
One x8 and six x16 slots | Slot1: x16 full-height, full length | Processor 1 |
| Slot 2: x16 full-height, full length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 1 | ||
| Slot 5: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x16 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 | ||
| Riser configuration 7 (1D+2D+3B) |
Three x8 and five x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 1 | ||
| Slot 5: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x16 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 | ||
| Riser configuration 8 (1A+2E+3A) |
Two x8 and four x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 3: x16 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x8 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 | ||
| Riser configuration 9 (1D+2E+3A) |
Four x8 and three x16 slots | Slot 1: x16 full-height, full length | Processor 1 |
| Slot 2: x8 full-height, full length | Processor 1 | ||
| Slot 3: x8 full-height, half length | Processor 1 | ||
| Slot 4: x16 full-height, full length | Processor 2 | ||
| Slot 6: x8 low profile, half length | Processor 2 | ||
| Slot 7: x8 full-height, full length | Processor 2 | ||
| Slot 8: x16 full-height, full length | Processor 2 |
The Dell PowerEdge R7424 can hold up to 3 DW GPUs. There are some rules and extra parts you will need if you plan to install any GPUs into the system. The guidelines below will help you understand what is needed to successfully install the GPUs into your Rack Server.
Likewise if you plan to remove any GPUs from the system. Please read the manual to ensure the correct Air Filters and Air Shrouds are installed. By doing this you will maintain the Federal Communications Commission (FCC) certification of the system.

(List below serves as quick links to each section)