Lenovo 4XH7A09834 SR655 PCIe x16 2U Riser 1 Full-Height Kit

Overview

The 4XH7A09834 is a PCIe x16 2U Riser 1 Full-Height (FH) kit for the Lenovo ThinkSystem SR655 server. It adds a full-height, full-length PCIe x16 slot in the Riser 1 position — the upgrade path when you need to install a double-wide GPU, a high-bandwidth NIC, or a storage controller that won't fit in a half-height slot. Without this riser kit, the SR655 cannot physically accommodate a full-height card in that position. At 1.75 lb and 13.50 x 9.00 x 6.00 in, the assembly is sized for the SR655 chassis and is not a universal fit.

Compatibility

Designed specifically for the Lenovo ThinkSystem SR655 2U rack server. The Riser 1 designation maps to a defined slot position within the SR655 motherboard and chassis layout — confirm your SR655 build configuration before ordering, as the SR655 supports multiple riser options and not all configurations accept the same riser at each position. This kit is not compatible with the SR650, SR650 V2, SR655 V3, or other ThinkSystem platforms without explicit Lenovo validation. Cross-reference your server expansion planning against the SR655 Options and Maintenance Manual to verify the correct riser index for your target PCIe card.

Installation Notes

The riser mounts into the dedicated Riser 1 bay in the SR655 chassis; the PCIe x16 interface connects directly to the system board via the riser connector. Full-height cards installed here must fit within the 2U chassis clearance envelope — verify card length and power connector orientation before seating. No special tooling beyond a standard Phillips screwdriver is indicated, but consult the SR655 Hardware Maintenance Guide for torque and retention clip procedures specific to this chassis generation.