Dell PowerEdge R7525
Dell EMC's two-socket 2U AMD rack server: two 2nd or 3rd Gen AMD EPYC (7002/7003) processors with up to 64 cores each, 32 DDR4-3200 DIMMs, up to 8 PCIe Gen4 slots, up to 24 front NVMe drives and room for three 300 W double-wide GPUs. Built for virtualization, databases, HPC, VDI and GPU/accelerator work.
Memory
- Slots
- 32 DDR4 DIMM (16 per CPU, 8 channels x 2 DIMMs), 288-pin
- RDIMM
- 8 GB (1R), 16/32/64 GB (2R), 3200 MT/s; max 2 TB
- LRDIMM
- 128 GB 4R (3200 MT/s) or 8R (2666 or 3200 MT/s); max 4 TB
- Speed
- 1 DPC 3200 MT/s, 2 DPC 2933 MT/s; the 128 GB 8R 2666 MT/s LRDIMM runs 2666 MT/s at both
- Population
- No UDIMMs; old 32 GB x4 (8Gb) and new 32 GB x8 (16Gb) RDIMMs cannot share a CPU; 128 GB 2666 and 3200 MT/s LRDIMMs cannot be mixed
Storage
- Front bays
- 8 x 3.5" SAS/SATA (with optical-bay blank), 12 x 3.5" SAS/SATA, 8 x 2.5" NVMe, 16 x 2.5" SAS/SATA, 24 x 2.5" (16 SAS/SATA + 8 NVMe, or 24 SAS/SATA/NVMe); hot-plug
- Rear bays
- Optional 2 x 2.5" SAS/SATA/NVMe, or a 4 x 2.5" rear module with rear fan; rear storage only with riser configs 8, 9 and 10
- NVMe
- Up to 24 front U.2 PCIe Gen4 (24 x 2.5" NVMe backplane)
- Front PERC
- Used with 8 x 3.5", 16 x 2.5" SAS/SATA, 24 x 2.5" (16 SAS/SATA + 8 NVMe) and 8 x 2.5" NVMe; adapter PERC with 12 x 3.5" (incl. + 2 rear) and 16 x 2.5" SAS/SATA
- Internal RAID/HBA
- PERC H755, H755N, H745, H345, HBA345, HBA355i
- Software RAID
- S150 (SATA, NVMe)
- External
- PERC H840, HBA355E, 12 Gbps SAS HBA; 12Gb MD-series JBODs, USB tape
- Boot
- BOSS-S2 (rear, hot-plug) or BOSS-S1 adapter card: 2 x M.2 SATA SSD with hardware RAID
- IDSDM
- Internal dual SD module, 16/32/64 GB (second card for redundancy)
- Drive types
- 2.5" SAS 10K 300 GB-2.4 TB, 15K 300-900 GB; SAS SSD 400 GB-3.84 TB; SATA SSD 120 GB-3.84 TB; NVMe 960 GB-15.36 TB (PM1725b, PM1733a, PM1735a, CD5); 3.5" SAS/SATA 7.2K 1-10 TB
Graphics
- Onboard
- Matrox G200, 16 MB frame buffer; rear VGA up to 1920 x 1200 at 60 Hz, front VGA up to 1440 x 900
- Double-wide
- Up to 3 in slots 2, 5, 7: NVIDIA A100 40/80 GB, A40, A30, A16, A10, M10, V100 16 GB, V100S 32 GB, Quadro RTX 5000/6000/8000; AMD Instinct MI100, MI210; Xilinx 225 W FPGA
- Single-wide
- NVIDIA T4 or A2: up to 6 (4 full-height in slots 1, 2, 7, 8 plus 2 low-profile in slots 3, 6)
- Restriction
- No GPUs in the 12 x 3.5" or 24 x 2.5" NVMe chassis; GPU/FPGA need the L-type heat sink and GPU shroud; some GPUs limited to 30 C ambient
Expansion
- Riser 1 (slots 1, 2)
- CPU1, full-height: R1A one x16 (slot 2, full-length/GPU); R1B 2 x8; R1C 2 x16; R1D no slots
- Riser 2 (slots 3, 6)
- R2A: slot 3 x16 low-profile (CPU1), slot 6 x16 low-profile (CPU2), half-length
- Riser 3 (slots 4, 5)
- CPU2, full-height: R3A one x16 (slot 5, full-length/GPU); R3B 2 x8
- Riser 4 (slots 7, 8)
- CPU2, full-height: R4A one x16 (slot 7, full-length/GPU); R4B 2 x8; R4C 2 x16; R4D no slots
- Max slots
- 8 with config 4 (R1B + R2A + R3B + R4B): 2 x8 + 1 x16 on CPU1, 4 x8 + 1 x16 on CPU2
- Riser configs
- 0 none; 1 R1B (1 CPU); 2 R1B+R4B; 3 R1A+R2A+R3A+R4A (FL or HL); 4 R1B+R2A+R3B+R4B; 6 R1C+R2A+R3A+R4C; 7 R1D+R2A+R3B+R4D; 8 R1A+R2A+R4A; 9 R1B+R2A+R4B; 10 R2A+R4B; 11 R1D+R2A+R3B+R4B; 12 R1D+R2A+R3A+R4A; 13 R1A+R2A+R3A; 14 R1B+R2A+R3B; 15 R1D+R4D (1 CPU)
- Other
- All PCIe Gen4, not hot-swappable; the optional DB-9 serial port card mounts like a slot filler
Networking
- LOM
- 2 x 1GbE RJ45 on a LOM board (Broadcom BCM5720)
- OCP 3.0
- 1 x OCP NIC 3.0 slot: 1GbE x4, 10GbE x2/x4, 25GbE x2/x4, 50GbE x2, 100GbE x2 (Broadcom, Intel, Mellanox, QLogic, SolarFlare)
- Add-in
- PCIe NICs 1/10/25/100 GbE, Mellanox HDR/HDR100 VPI, Emulex/QLogic FC16/FC32/FC64 HBAs
Power
- PSU options
- 800 W Platinum mixed mode; 1100 W Titanium mixed mode; 1400 W Platinum mixed mode; 2400 W Platinum mixed mode (100-240 VAC / 240 VDC); 1100 W -48 to -60 VDC
- Low line
- At 100-120 VAC the 1400 W PSU is derated to 1050 W and the 2400 W to 1400 W
- Also listed
- The Technical Guide comparison table also lists Titanium 700 W, 1800 W and 2800 W mixed-mode units
- Redundancy
- Two hot-plug PSUs (60 mm / 86 mm form factors), one at each side of the rear
- Fans
- Up to 6 hot-plug fans: STD, HPR (Silver) or HPR (Gold, VHP); 3 for one CPU, 6 for two; N+1 redundant; fan grades cannot be mixed
- Cooling
- Air, or optional processor direct liquid cooling with leak sensor
- Battery
- CR2032 3.0 V lithium coin cell
Ports
- Front
- VGA, 1 x USB 2.0, iDRAC Direct (micro-AB USB), power button
- Rear
- 1 x USB 3.0, 1 x USB 2.0, VGA, iDRAC9 dedicated RJ45, 2 x 1GbE LOM, OCP 3.0 slot, system ID button, optional DB-9 serial
- Internal
- 1 x USB 3.0 (optional)
Physical
- Form factor
- 2U rack
- Dimensions
- 86.8 mm H x 482 mm W (434 mm without ears); bezel 35.84 mm deep (22.0 mm ear depth without bezel)
- Depth
- Ear to rear wall 700.7 mm; ear to PSU handle 736.29 mm
- Weight
- 36.3 kg (12 x 3.5"), 33.2 kg (8 x 3.5"), 28.6 kg (24 x 2.5"), 26.6 kg (16 x 2.5"), 24.6 kg (8 x 2.5"), maximum
- Operating temp
- 10-35 C (ASHRAE A2); A3 (5-40 C) and A4 (5-45 C) with configuration restrictions
Management
- BMC
- iDRAC9 with Lifecycle Controller, iDRAC RESTful API with Redfish, iDRAC Direct, optional Quick Sync 2 (BLE/wireless)
- Software
- OpenManage Enterprise, Power Manager, OpenManage Mobile, iDRAC Service Module; integrations for Microsoft System Center, VMware vCenter, Red Hat Ansible, BMC TrueSight, ServiceNow; connections for IBM Tivoli, Micro Focus, Nagios
- Security
- TPM 1.2/2.0, TCM 2.0 optional; cryptographically signed firmware, Secure Boot, Secure Erase, Silicon Root of Trust, System Lockdown (requires OpenManage Enterprise), AMD SME and SEV
- Bezel
- Optional LCD bezel or security bezel
Operating systems
- Supported
- Canonical Ubuntu Server LTS, Citrix XenServer, Microsoft Windows Server with Hyper-V, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi / vSAN
Processors
- AMD EPYC 7773X
- AMD EPYC 7573X
- AMD EPYC 7473X
- AMD EPYC 7373X
- AMD EPYC 7H12
- AMD EPYC 7763
- AMD EPYC 7742
- AMD EPYC 7713P
- AMD EPYC 7713
- AMD EPYC 7702
- AMD EPYC 7663
- AMD EPYC 7662
- AMD EPYC 7643
- AMD EPYC 7642
- AMD EPYC 75F3
- AMD EPYC 7552
- AMD EPYC 7543P
- AMD EPYC 7543
- AMD EPYC 7542
- AMD EPYC 7532
- AMD EPYC 7513
- AMD EPYC 7502
- AMD EPYC 74F3
- AMD EPYC 7453
- AMD EPYC 7452
- AMD EPYC 7443P
- AMD EPYC 7443
- AMD EPYC 7413
- AMD EPYC 7402
- AMD EPYC 73F3
- AMD EPYC 7352
- AMD EPYC 7343
- AMD EPYC 7313P
- AMD EPYC 7313
- AMD EPYC 7302
- AMD EPYC 72F3
- AMD EPYC 7282
- AMD EPYC 7272
- AMD EPYC 7262
- AMD EPYC 7252
- AMD EPYC 7F72
- AMD EPYC 7F52
- AMD EPYC 7F32