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1U rack server
Processor | Max: 64 Cores2x 2nd or 3rd Gen AMD EPYC
Memory | Max: 2TB RDIMM | 4TB LRDIMM32 DDR4 RDIMM/LRDIMM 3200Mhz
Storage | Max: N/A4x 3.5" SAS/NL-SAS/SATA (HDD/SSD)
8x 2.5" SAS/NL-SAS/SATA (HDD/SSD)
10x 2.5" SAS/NL-SAS/SATA (HDD/SSD) NVMe
10 (front) + 2 (rear) 2.5" SAS/NL-SAS/SATA (HDD/SSD) NVMe
2 SFF SAS/SATA (HDD/SSD) NVMe (10 Bay Only)
RAID Controller:S150 (SW RAID)
HBA345, H345, H745, H840, 12G SAS HBA, H755, H755N
BOSS
BOSS-S2
IDSDM
OCP x16 Mezz 3.0 + 2 x 1GE LOM
Remote Management:iDRAC9 with Lifecycle Controller
PCIe Slots:3 x Gen4 slots (x16) at 16GT/s
GPU:Up to 3 Single-Wide GPU
The Dell EMC PowerEdge R6525 Rack Server is a highly configurable, dual-socket 1U rack server that delivers outstanding balanced performance and innovations for dense compute environments to address traditional and emerging workloads and applications.
The new Dell EMC PowerEdge R6525 is a highly configurable, dual-socket 1U rack server that delivers outstanding balanced performance and innovation for dense compute environments. It’s ideal for traditional and emerging workloads and applications. High-level features include:
The Dell EMC OpenManage™ systems management portfolio delivers an efficient and comprehensive solution for PowerEdge servers through tailored, automated, and repeatable processes.
Every PowerEdge server is designed with a cyber-resilient architecture, integrating security deeply into every phase in the lifecycle, from design to retirement.
The PowerEdge R6525 enables multiple storage configurations to tune the system configuration for a variety of workloads. The R6525 is available in the following configuration types:

This R6525 Rack Server has 3 different heat sinks, and 3 different fans. Please read the Tech Manual "thermal restriction" for more details.
| Heat sink | Processor TDP |
|---|---|
| STD HSK | < 180 W |
| L-type HSK | Processor 1 >= 180 W |
| L-type HSK | Processor 2 >= 180 W |

The new liquid cooling solution provides efficient method to manage the system temperature.
It also provides liquid leak detection mechanism via iDRAC. This technology is managed by the Liquid Leak Sensor (LLS) mechanism.
LLS is able to determine liquid leaks as small as 0.02 ml or large leaks (0.2 ml).

If a GPU is installed on a 4-Bay or 8-bay chassis. You will need to upgrade the Fans to High Performance Silver Fans. If you have the 10-Bay Chassis you will need to upgrade to the Very High Performance Gold Fans. If you install the Liquid Cooling you will need to install the High Performance Silver Fans.

The PowerEdge R6525 system supports up to 32 DIMMS, 2 TB of memory, and speeds up to 3200MT/s. The R6525 support registered (RDIMMs) and load reduced DIMMs (LRDIMMs) which use a buffer to reduce memory loading and provide greater density, allowing for the maximum platform memory capacity. Unbuffered DIMMs (UDIMMs) are not supported.
The older 128 GB capacity LRDIMM memory at 2666 MT/s speed cannot be mixed with the new 128 GB capacity LRDIMM memory at 3200 MT/s speed.
| DIMM Speed(MT/s) | DIMM Type | DIMM Capacity(GB) | Ranks per DIMM | Data Width | DIMM Volts | Minimum RAM | Maximum RAM |
|---|---|---|---|---|---|---|---|
| 3200 | RDIMM | 8 | 1 | 8 | 1.2 | 8GB | 128GB |
| 3200 | RDIMM | 16 | 2 | 8 | 1.2 | 16GB | 256GB |
| 3200 | RDIMM | 32 | 2 | 8 | 1.2 | 32GB | 512GB |
| 3200 | RDIMM | 32 | 2 | 4 | 1.2 | 32GB | 512GB |
| 3200 | RDIMM | 64 | 2 | 4 | 1.2 | 64GB | 1TB |
| 3200 | LRDIMM | 128 | 8 | 4 | 1.2 | 128GB | 2TB |
| 3200 | LRDIMM | 128 | 4 | 4 | 1.2 | 128GB | 2TB |
Dell EMC RAID controller options offer performance improvements, including the Mini PERC solution. Mini PERC provides a base RAID HW controller without consuming a PCIe slot by using a small form factor and high density connector to the base planar.
The following table shows the supported storage controllers for the PowerEdge R6525:
| Performance level | Description |
|---|---|
| Entry | S150 (SATA, NVMe) Software RAID SATA |
| Value | H745 (internal), H345, HBA345 (internal), H840 (external), 12Gbps SAS HBA (external) |
| Value Performance | H755N (internal), HBA355 (internal), HBA355E (external) |

The PowerEdge R6525 system supports two Network Interface Controller (NIC) ports embedded on the LOM card.
The PowerEdge R6525 system also supports OCP NIC port integrated on the optional OCP card.
| Feature | Specifications |
|---|---|
| LOM card | 1 GB x 2 |
| OCP card (OCP 3.0) | 1 GbE x 4, 10 GbE x 2, 25 GbE x 2, 25 GbE x 4, 50 GbE x 2, 100 GbE x 2 |

| Expansion card riser | PCIe slots on the riser | Processor connection | Height | Length | Slot width |
|---|---|---|---|---|---|
| R1a (Riser 1) | Slot 1 | Processor 1 | Full Height | 3/4th Length | x16 |
| R2a (Riser 2) | Slot 1 | Processor 1 | Low Profile | Half Length | x16 |
| Slot 2 | Processor 2 | Low Profile | Half Length | x16 | |
| R3a (Riser 3) | Slot 3 | Processor 2 | Low Profile | Half Length | x16 |
| R4c + R4d (Riser 4) | Slot 2 | Processor 2 | Full Height | 3/4th Length | x16 |

BOSS-S1:
Cold-Swap BOSS-S1. Only one BOSS option can be installed at a time.

BOSS-S2:
Hot-Swap BOSS-S2. Only one BOSS option can be installed at a time.

IDSDM:
The IDSDM and the USB can not be installed at the same time.

Internal USB:
The IDSDM and the USB can not be installed at the same time.
| 2.5" x 10 Bay | 2.5" x 8 Bay | 3.5" x 4 Bay | ||||
|---|---|---|---|---|---|---|
| Rear Config | 3 x LP | 2 x FH | 3 x LP | 2 x FH | 3 x LP | 2 x FH |
| Slot 1 | Supported | Supported | Supported | Supported | Supported | Supported |
| Slot 2 | Supported | Supported | Supported | Supported | Supported | Supported |
| Slot 3 | Supported | NA | Not supported | NA | Not supported | NA |
| Technology | Detailed Description |
|---|---|
| Power supply | 60mm dimension is the new PSU form factor ● Platinum 800W AC or HVDC (China Only) ● Platinum Mixed Mode 800W AC or HVDC (China Only) ● Titanium 1100 W Mixed Mode AC/HVDC ● (-48 V) 1100 W DC PSU ● Platinum 1400W AC or HVDC (China Only) ● Platinum Mixed Mode 1400W AC or HVDC (China Only) |
(List below serves as quick links to each section)