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Supermicro MBD-B3SD1-20C-25G

**Supermicro MBD-B3SD1-20C-25G**: A high-performance server motherboard engineered for demanding workloads, featuring a 3rd Gen Intel Xeon Scalable processor (20 cores) and dual 25GbE LAN for ultra-fast data transfer. Built on the Birch Stream platform, it supports 16 DDR4-3200 DIMMs (2TB RAM), PCIe 4.0 expansion, and multiple storage options, including NVMe M.2 and U.2. Optimized for AI, cloud, and HPC applications, it offers enterprise-grade reliability, scalable connectivity, and energy efficiency. Unique selling points include integrated 25G networking, robust thermal design, and remote management via IPMI, ensuring seamless deployment in data-intensive environments.

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Product SKUs

  • MBD-B3SD1-20C-25G

Physical Stats

  • Form Factor
    Proprietary
  • Dimension
    4.8″ x 8.8″ (12.19cm x 22.35cm)

Processor

  • CPU
    Intel Xeon D-2796NT Processor (Icelake-D)
    Single Socket FCBGA-2579 supported, CPU TDP supports Up to 120W TDP
  • Core
    Up to 20 cores / 30MB Cache

System Memory

  • Memory Capacity
    2 DIMM slots
    Up to 256GB ECC LRDIMM, DDR4-2933MT/s
  • Memory Type
    2933/2666/2400/2133 MT/s ECC DDR4 LRDIMM
  • DIMM Sizes
    8GB, 16GB, 32GB, 64GB, 128GB
  • Memory Voltage
    1.2V

On-Board Devices

  • Chipset
    System on Chip
  • Graphics
    1 Aspeed AST2600 BMC port(s)
  • Network Controllers

Input / Output

  • USB
    1 USB 3.0 port(s) (1 Type A (For Debug Use Only))
  • DOM
    1 SATA DOM (Disk on Module) power connector support
  • TPM
    1 TPM Header

Expansion Slots

  • PCIe
    1 PCIe 4.0 x4
    1x 2.5″ SATA3 HDD/SSD or NVMe U.2 per node via HDD backplane
  • M.2
    M.2 Interface: 1 PCIe 4.0 x4
    Form Factor: 2280
    Key: M-Key

System BIOS

  • BIOS Type
    32MB SPI Flash EEPROM with AMI BIOS
  • BIOS Features
    ACPI 6.3
    UEFI 2.7
    Plug and Play (PnP)
    SMBIOS 3.3
    PCI FW 3.0
    RTC (Real Time Clock) Wakeup

Management

  • System Management Software
    IPMI (Intelligent Platform Management Interface) v1.5 / 2.0 with KVM support
  • Power Configurations
    Power-on mode for AC power recovery, ACPI Power Management, Power button override mechanism, S5 Power State
BIOS Features

ACPI 6.3UEFI 2.7Plug and Play (PnP)SMBIOS 3.3PCI FW 3.0RTC (Real Time Clock) Wakeup
Graphics

1 ASPEED AST2600 BMC port(s)
TPM

1 TPM Header
M.2

M.2 Interface: 1 PCIe 4.0 x4Form Factor: 2280Key: M-Key
Chipset

System on Chip
DIMM Sizes

128GB, 16GB, 32GB, 64GB, 8GB
BIOS Type

32MB SPI Flash EEPROM with AMI BIOS
DOM

DOM
Dimension

4.8" x 8.8" (12.19cm x 22.35cm)
PCIe

1 PCIe 4.0 x4
USB

1 USB 3.0 port(s) (1 Type A (For Debug Use Only))
Form Factor

Proprietary
Memory Type

2933/2666/2400/2133 MT/s ECC DDR4 LRDIMM
Application

Server
Memory Voltage

1.2V
CPU

CPU TDP supports Up to 120W TDP, Intel Xeon D-2796NT Processor (Icelake-D)Single Socket FCBGA-2579 supported
Memory Capacity

2 DIMM slotsUp to 256GB ECC LRDIMM, DDR4-2933MT/s
Core

Up to 20 cores / 30MB Cache

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