Lenovo ThinkSystem 1U G4 x16/x16 PCIe Riser1 LP+LP Option Kit

The Lenovo ThinkSystem 1U G4 x16/x16 PCIe Riser1 LP+LP Option Kit is a purpose‑built expansion solution designed to maximize the versatility and performance of ThinkSystem 1U servers. This dual x16 PCIe riser kit enables high‑bandwidth expansion cards, accelerators, and high‑speed network adapters in a compact, space‑efficient 1U chassis. Built to Lenovo engineering standards, it delivers reliable signal integrity, robust cooling compatibility, and straightforward installation for data centers that demand scalable GPU, NVMe, or accelerator deployments without compromising airflow or rack density. Whether you’re configuring multi‑GPU workstations, high‑performance compute nodes, or accelerator‑based networking, this riser kit provides the essential bridge between the motherboard PCIe lanes and the enablement of dual x16 connectors in a low‑profile, single‑height form factor.

• Dual x16 PCIe lanes in a 1U form factor: unlocks full bandwidth for graphics, storage, NVMe, and accelerator cards while preserving critical 1U rack space and cooling airflow.
• Gen 4 PCIe compatibility: designed to support high‑speed PCIe Gen 4 devices, enabling faster data transfer rates, lower latency, and improved overall system performance for demanding workloads.
• LP+LP low‑profile design: optimized for server density, allowing installation of full‑height or low‑profile expansion cards where chassis height is a constraint, while maintaining clearance for cables and cooling airflow.
• Easy integration with ThinkSystem 1U chassis: engineered to align with Lenovo’s standard ThinkSystem mounting points and cable routing, ensuring a clean, reliable installation that minimizes downtime.
• Robust reliability and serviceability: built for data‑center environments with durable connectors and secure mechanical fit, plus Lenovo’s engineering emphasis on long‑term compatibility and predictable maintenance windows.

Technical Details of Lenovo ThinkSystem 1U G4 x16/x16 PCIe Riser1 LP+LP Option Kit

• Form factor: PCIe Riser Kit designed for 1U ThinkSystem servers
• PCIe configuration: x16/x16 dual riser configuration to support two expansion cards
• PCIe generation: PCIe Gen 4 compatible for high‑throughput devices
• Connector type: LP+LP (low‑profile) connectors suitable for compact 1U deployments
• Mounting compatibility: aligns with Lenovo ThinkSystem chassis rails and rear I/O area
• Cooling considerations: designed to preserve airflow pathways and minimize thermal impact within standard 1U server cooling layouts

how to install Lenovo ThinkSystem 1U G4 x16/x16 PCIe Riser1 LP+LP Option Kit

• Power down the ThinkSystem server completely and disconnect all power sources and peripheral cables to ensure safe handling.
• Remove the server access panels or doors as directed by Lenovo maintenance procedures to expose the motherboard and rear expansion area.
• Identify the PCIe riser slot locations that correspond to the dual x16 expansion lanes and verify there is no obstruction from existing cards, cabling, or chassis components.
• Carefully align the Riser1 LP+LP kit with the designated motherboard and backplane connectors, then firmly seat the riser until it is fully engaged and seated with a secure click.
• Route any necessary power or fan connections per Lenovo installation guidelines, ensuring cables are neatly managed to avoid blocking airflow or impacting other components.
• Replace the access panels, reattach cables, and power on the system to confirm recognition of the new riser configuration. Enter the BIOS/UEFI to verify PCIe lane allocation and ensure both x16 slots are detected properly.
• Install compatible PCIe devices (GPUs, NICs, NVMe controllers, or accelerators) into the dual x16 slots, then re‑check for thermal and performance stability under load tests.
• Document the installation in your asset management system and update firmware or BIOS to Lenovo recommended levels if required for optimal compatibility.

Frequently asked questions

• What does the Lenovo ThinkSystem 1U G4 x16/x16 PCIe Riser1 LP+LP Option Kit do? It provides dual x16 PCIe expansion lanes in a 1U ThinkSystem server, enabling high‑bandwidth cards such as GPUs, NVMe controllers, and network accelerators while preserving chassis density and airflow.
• Is this riser kit compatible with all ThinkSystem 1U servers? Compatibility is targeted at ThinkSystem 1U chassis that support dual x16 PCIe risers. Always verify the server model and motherboard support before purchase or installation.
• Does it support PCIe Gen 4 devices? Yes, the kit is designed for PCIe Gen 4 compatibility, allowing high‑throughput devices to operate at their expected performance within the 1U platform.
• Do I need any additional adapters or cables? The kit includes the essential riser assembly and connectors. Depending on your specific deployment, you may need compatible cooling, power, or peripheral cables as recommended by Lenovo for your chassis configuration.
• How do I know if the installation is successful? After installation, power on and enter the system BIOS/UEFI to confirm both PCIe x16 slots are detected. Perform a basic performance check with representative workloads and monitor temperatures to ensure proper airflow and thermal management.