Lenovo ThinkSystem 2U PCIe Gen4 Riser Kit 1/2 Option for x16/x16/E Slots

Designed for high-density data centers and enterprise environments, the Lenovo ThinkSystem 2U x16/x16/E PCIe G4 Riser 1/2 Option Kit provides flexible, reliable expansion for ThinkSystem servers. This PCIe Gen4 riser kit unlocks additional bandwidth and expansion paths within a 2U chassis, enabling organizations to deploy accelerators, high-speed NVMe devices, or network adapters without compromising airflow or system reliability. Built to Lenovo’s exacting standards, the kit delivers robust signal integrity, precise alignment, and streamlined maintenance, making it an essential component for scalable ThinkSystem configurations. Whether you’re upgrading an existing deployment or provisioning new infrastructure, this 1/2 option kit is engineered to optimize slot density, thermal performance, and serviceability in demanding data center workloads.

• Optimized for Lenovo ThinkSystem 2U chassis, delivering seamless integration with ThinkSystem backplanes and server boards while preserving original airflow patterns and rack footprint. The kit is designed to slide into the appropriate riser slot with accurate alignment to minimize signal loss and reduce install time, helping IT teams accelerate deployments and minimize downtime.
• PCIe Gen4 performance with x16/x16/E configuration, maximizing bandwidth for high-performance GPUs, AI accelerators, FPGAs, NICs, and NVMe devices. This riser supports full Gen4 signaling across the primary PCIe lanes, enabling enthusiasts and professionals alike to achieve lower latency and higher throughput for demanding workloads in a 2U server environment.
• 1/2 option configuration for flexible slot utilization, allowing efficient balance between expansion capabilities and chassis cooling. By offering a split approach to PCIe connections, administrators can tailor the configuration to match workload profiles, optimize power budgets, and maintain optimal air circulation within dense racks.
• Rigorous design for reliability and longevity, including precision connectors, sturdy mounting hardware, and compatibility with Lenovo service and support ecosystems. The kit integrates with Lenovo’s validated components to ensure stable operation under continuous data center workloads and provides predictable performance across firmware and BIOS revisions.
• Comprehensive durability and compliance considerations, featuring materials and construction that meet enterprise-grade requirements, with attention to EMI shielding and mechanical robustness for long-term field use. This riser kit is built to endure the rigors of data-center rack environments while preserving signal integrity across extended operational lifecycles.

Technical Details of Lenovo ThinkSystem 2U x16/x16/E PCIe G4 Riser 1/2 Option Kit

• Product Type: PCIe Gen4 Riser Kit
• Form Factor: 2U riser configuration
• PCIe Version: Gen4
• Riser Configuration: 1/2 option kit (supports dual x16 connections with x16/x16/E lane arrangement)
• Slot Configuration: Compatible with Lenovo ThinkSystem x16/x16/E PCIe expansion paths within 2U chassis
• Compatibility: Designed for Lenovo ThinkSystem servers that support PCIe Gen4 risers and 2U backplane layouts
• Materials and Compliance: Constructed for enterprise reliability; RoHS compliant where applicable

how to install Lenovo ThinkSystem 2U x16/x16/E PCIe G4 Riser 1/2 Option Kit

Note: This section provides general installation guidance for Lenovo ThinkSystem PCIe riser components. Always consult your system’s official maintenance procedures and service guides before performing hardware changes.

Prepare your workspace and power down the server following standard procedures. If you’re replacing an existing riser, remove the server cover according to the ThinkSystem maintenance guide and disconnect any attached cables. Verify that the chassis backplane and motherboard PCIe slots are free of debris and that you have the correct mounting hardware for the riser kit. Align the riser’s connectors with the corresponding backplane and motherboard interfaces, ensuring that the x16/x16/E lanes are oriented as required by your workload configuration. Gently insert the riser so that the connectors engage fully; you should feel a secure, firm seating without any wobble. Secure the riser with the appropriate screws or latch mechanisms as specified by Lenovo’s installation instructions. Reattach any cables that were removed during disassembly, reinstall the server cover, and reconnect power. Power on the system and enter the BIOS or UEFI to confirm that the PCIe devices are recognized and operating at Gen4 speeds. Finally, monitor the system during the initial boot and run a baseline performance test to verify stability and bandwidth alignment with your target cards or adapters.

Frequently asked questions

• What does the 1/2 option kit mean for this Lenovo ThinkSystem riser? It indicates a configurable riser arrangement that supports two primary PCIe paths with a split or half-height layout, allowing you to optimize lane allocation, card placement, and thermal performance within a 2U chassis.
• Is this riser kit compatible with PCIe Gen5 hardware? The kit is specified for PCIe Gen4 signaling. PCIe Gen5 devices may not operate at full performance or be supported unless Lenovo provides a Gen5-compatible riser in the same product family.
• Does the kit include cables or mounting hardware? The riser assembly and essential mounting hardware are included to secure the card paths; additional cables or backplane accessories may be required depending on your server model and card types.
• Can I install multiple PCIe devices on this 2U riser? Yes, the 1/2 option supports dual PCIe paths (x16/x16/E as configured) within a 2U chassis, enabling several PCIe devices to be connected concurrently, subject to backplane and power constraints.
• Do I need software or BIOS updates to enable Gen4 performance? In most cases, enabling Gen4 bandwidth requires proper BIOS/firmware support and compatible PCIe devices. Verify Lenovo-provided firmware updates and driver packages for optimal performance with your PCIe devices.