Lenovo ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP

The Lenovo ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP is a high-density PCIe expansion solution engineered for demanding data center workloads. Designed for Lenovo ThinkSystem 1U servers, this dual x16 PCIe 5.0 riser card enables you to maximize rack efficiency by accommodating powerful accelerators, high-speed NICs, and other PCIe devices without sacrificing space or airflow. Built for reliability in the field, this G5 riser card delivers robust signal integrity, precise mechanical alignment, and streamlined maintenance in a compact, low-profile format that meets the rigors of modern enterprise deployments. If your data center strategy relies on dense GPU compute, AI inference, high-performance networking, or fast storage interfaces, the ThinkSystem V3 Riser1 LP+LP provides the proven expansion path you need while preserving the airflow and cooling efficiency essential to 1U chassis designs.

• Dual PCIe 5.0 x16 slots (Low-profile): This riser supports two full-length PCIe 5.0 x16 connections, enabling simultaneous installation of high-bandwidth GPUs, NICs, or accelerators in a compact 1U space. The low-profile design ensures compatibility with standard 1U Lenovo ThinkSystem servers, while preserving clearance for adjacent components and cabling.
• PCIe 5.0 bandwidth and future-proofing: Leveraging PCIe 5.0, each x16 lane delivers up to unmatched bandwidth, effectively doubling the per-lane throughput over PCIe 4.0. This translates to improved data transfer rates, lower latency for data-intensive workloads, and better support for memory-intensive accelerators, making it ideal for AI, virtualization, and HPC deployments.
• Optimized for 1U chassis and airflow: The G5 Riser1 LP+LP is engineered for tight server environments. Its low-profile connectors and careful cable routing minimize obstruction to airflow, helping maintain thermal performance in dense 1U racks and preventing thermal throttling during peak workloads.
• Flexible expansion for accelerators and network cards: Ideal for deploying dual GPUs, FPGA/AI accelerators, NICs, or other PCIe cards that require the highest bandwidth in a 1U chassis. The riser’s design reduces signal path length variance and preserves signal integrity across high-speed cards.
• Reliability and Lenovo compatibility: Built to endure the rigors of data center operation, the ThinkSystem G5 Riser1 LP+LP integrates seamlessly with Lenovo ThinkSystem servers, with certified mechanical fitment and vetted interoperability to simplify deployment and support.

Technical Details of Lenovo ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP

• Slots: 2 x PCI Express 5.0 x16 (Low-profile)
• Standard: PCI Express 5.0 certified for high-bandwidth data transfer
• Form factor: 1U chassis-compatible riser card
• Riser family: G5 Riser1 LP+LP
• Application: Expansion for Lenovo ThinkSystem 1U servers; suitable for GPUs, accelerators, and high-speed NICs

How to install Lenovo ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP

• Prepare the server: Power down the system, unplug the power cords, and discharge static electricity by touching a grounded metal surface. Remove the server cover to access the motherboard area and PCIe slots.
• Identify the correct PCIe riser slot: Locate the designated PCIe expansion area on the motherboard or backplane depending on the ThinkSystem chassis model. Confirm compatibility with the G5 Riser1 LP+LP before proceeding.
• Install the riser into the motherboard/slot: Carefully align the G5 Riser1 LP+LP with the riser connector and seating slot. Press firmly to engage the connector pins, ensuring a snug, even seating without forcing.
• Secure and route: Use the provided screws or retention mechanism to secure the riser to the chassis backplane or riser slot bracket. Route any necessary PCIe power or signal cables away from airflow paths and heat sources to avoid obstruction.
• Install PCIe cards: Insert your PCIe devices (GPUs, NICs, accelerators) into the x16 slots on the riser, making sure they are fully seated. If necessary, fasten cards with retention screws to prevent movement during operation or maintenance.
• Post-install checks: Reconnect power, reseat the server cover, and power on. Enter the system BIOS/UEFI to confirm the riser and attached devices are detected. Verify fans and airflow are unobstructed and monitor temperatures during initial boot and workload startup.

Frequently asked questions

• Is this riser compatible with all Lenovo ThinkSystem 1U servers? The ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP is designed to fit ThinkSystem 1U chassis and support dual x16 PCIe 5.0 cards. Always verify compatibility with your specific Lenovo server model and firmware version to ensure optimal operation.
• What kind of PCIe cards can I install with this riser? You can install high-bandwidth PCIe 5.0 devices, such as dual GPUs, AI accelerators, high-speed NICs, or other PCIe x16 cards that require the bandwidth offered by PCIe 5.0 in a 1U form factor.
• Does it require additional power connectors? PCIe risers typically do not require separate power connections; most power to devices is provided through the PCIe slots on the motherboard. For power-hungry GPUs or accelerators, ensure your chassis and PSU can supply adequate power to the devices installed.
• Will installing this riser affect server cooling? The G5 Riser1 LP+LP is designed with airflow in mind. Its low-profile form factor and careful cable routing help maintain unobstructed airflow in a 1U chassis, but always plan for adequate cooling based on the number and type of PCIe devices installed.
• How do I verify PCIe 5.0 support after installation? After installation, enter the system BIOS/UEFI to verify that the riser is recognized and that the connected PCIe devices are detected. In the operating system, use appropriate toolsets or device managers to confirm PCIe generation and bandwidth for each slot.