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Gigabyte TO25-Z11-AA01 Compute Node - System Overview

Gigabyte TO25-Z11-AA01 front panel drive baysAdditional Information

A single AMD EPYC 9005/9004 Series processor powers the 2OU TO25-Z11-AA01, with configurable TDP reaching up to 300W. It is designed for high-performance computing (HPC) and AI workloads. AMD’s EPYC processors feature 12-channel memory and in this case support twelve DDR5 RDIMM slots. Memory speeds of up to 6400 MT/s on 9005 processors and 4800 MT/s on 9004 models. Twelve front-accessible 9.5mm E1.S Gen4 NVMe hot-swap bays provide substantial storage capacity. There is also an optional internal M.2 PCIe Gen4 x4 slot for 2280 and 22110 cards. 

The system offers 1x riser card with 1x LP Gen5 x16 slot which can be accessed through the front panel, plus a dedicated OCP 3.0 Gen5 x16 networking slot. Remote oversight through the ASPEED AST2600 controller is paired with Gigabyte’s Management Console, offering out-of-band capabilities. This node supports up to 1600W through its 48V DC bus bar and is mounted in a 21” OCP rack with a separate PSU system. This system is based on OCP Open Rack V3 specifications with power supplied to each server node by a bus-bar system at the rear of the rack. 

Available Configurations

Explore available configurations for the Gigabyte TO25-Z11-AA01 Compute Node. Each configuration includes a specific combination of components and options to meet different performance, cooling, storage, and deployment requirements.

Gigabyte TO25-Z11-AA01 Compute Node - Specifications

Processor

- AMD EPYC 9005 Series Processors
- AMD EPYC 9004 Series Processors
- Single Processor, cTDP up to 300W
- Motherboard: MZ13-HD0

*Note: cTDP supported up to 400W under limited thermal conditions

Open Rack Version

- ORv3

Memory

- 12x DIMM slots
- DDR5 memory supported
- 12-Channel memory per processor

AMD EPYC 9005:
- RDIMM: Up to 6400 MT/s

AMD EPYC 9004:
- RDIMM: Up to 4800 MT/s

Storage

Front hot-swap:
- 12x 9.5mm E1.S Gen4 NVMe

Optional internal M.2 (CMTP192):
- 1x M.2 (2280/22110), PCIe Gen4 x4

LAN

Front:
- 1x 10/100/1000 Mbps Management LAN

Expansion Slots

Riser Card CRSH01Q:
- 1x LP x16 (Gen5 x16)

Riser Card CRSH01R:
- 1x LP x16 (Gen5 x16), occupied for NVMe

- 1x OCP NIC 3.0 (Gen5 x16)
- Supports NCSI function

Front I/O

- 2 x USB 3.2 Gen1 ports (Type-A)
- 1x VGA port
- 1x MLAN port
- 1x Power button with LED
- 1x ID button with LED
- 1x System status LED
- 1x ID LED

No. of Bus Bars

- 1x 48V Bus Bar

Power Supply

- Supports up to 1600W

Management

- ASPEED AST2600 Baseboard Management Controller
- Gigabyte Management Console web interface

OS Compatibility

Additional Certifications:
- Windows Server 2025

Dimensions (WxHxD, mm)

- 2OU 2-Node
- 265.1 x 90.7 x 742.9

Weight

- Net Weight: 13 kg
- Gross Weight: 15.2 kg

Gigabyte TO25-Z11-AA01 Compute Node - Documentation

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