PCIe slots and PCIe adapters ThinkSystem SR650V2

pcie slot for gpu   Dan pcie 4 card in pcie 3 slot

Unless you have very specific reasons to have it in PCIE_X16_2 i would recommend to move it to PCIE_X16_1 You don't need x16 for anything below

Most new high end graphics cards are normally dual slot now days, so that means the card chosen most likely cover two If you have a compatible motherboard, placing the graphics card in the second PCIe slot can help increase the airflow around the card and reduce temperatures

bonus train bandits slot Slot Cars · Puzzles · RC Model Vehicles, Toys & Control Line · Collectible Card AMD Radeon RX 550 4GB 128-Bit GDDR5 PCIe Low Profile Video Card GPU  The x8 slots are PCIE , and for network or SSD adapters Not sure if the 8 lanes are shared, or if it's x8 per PCIE slot Since it's PCIE