Lenovo 4XH7A08779

Overview

The Lenovo 4XH7A08779 is a PCIe riser card designed specifically for ThinkSystem rack servers with a 2U chassis. It converts a vertical motherboard PCIe slot into a horizontal one, allowing you to install expansion cards such as GPUs, high-speed network adapters, or storage controllers while maintaining the server’s compact height. This riser supports a single PCIe slot operating at either x16 or x8 speeds, depending on the system board and installed card, making it a practical solution for enhancing server capabilities without compromising airflow or rack space.

Key features

• Provides one PCIe slot that supports full-height expansion cards, enabling versatile hardware upgrades.
• Operates at PCIe x16 or x8 speeds, adapting to the system board and installed card for optimal performance.
• Installs in the Riser 1 position of 2U ThinkSystem chassis, ensuring compatibility with SR550, SR590, and SR650 servers.
• Mounts expansion cards horizontally to preserve rack space and maintain efficient airflow within the chassis.
• Tool-free installation design allows quick upgrades and maintenance without disrupting server operation.
• Part number and barcode identification simplify inventory management in data centers and IT environments.

Key specs

• Form factor: PCIe riser card for 2U rack servers
• PCIe slot: Single slot supporting x16 or x8 operation
• Compatibility: Lenovo ThinkSystem SR550, SR590, SR650
• Mounting position: Riser 1 location in 2U chassis
• Card orientation: Horizontal mounting for full-height cards
• Part number: 4XH7A08779
• Barcode: 889488461356

Connectivity and compatibility

This riser card is engineered to fit seamlessly into Lenovo ThinkSystem 2U rack servers, specifically the SR550, SR590, and SR650 models. It supports a wide range of PCIe expansion cards, including graphics processing units, network adapters, and storage controllers, making it a flexible choice for enhancing server performance in mixed workload environments. The horizontal mounting preserves internal airflow and cable management, which is critical for maintaining system stability and cooling efficiency in dense rack setups.

Installation and setup

The Lenovo 4XH7A08779 features a tool-free design that simplifies installation and removal, allowing IT administrators to perform upgrades or maintenance quickly during routine service windows. Its placement in the Riser 1 slot of a 2U chassis ensures that expansion cards fit within the height constraints of standard rack servers, avoiding interference with other components and preserving optimal airflow. This design reduces downtime and helps maintain a clean, organized server environment.

Ideal uses and environments

This riser card is well suited for data centers and enterprise IT environments where space efficiency and performance flexibility are priorities. It supports server configurations that require additional GPU power, enhanced networking capabilities, or expanded storage options without increasing the physical footprint. Organizations running mixed workloads on Lenovo ThinkSystem SR550, SR590, or SR650 servers will find this riser card a practical upgrade path to meet evolving compute demands.

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