You must remove the PCI riser-card assembly to replace the PCIe card.
You must remove the PCI riser-card assembly to remove the DIMM air baffle or replace the PCIe card.
Important Always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server. For more information, see Protecting against ESD damage.

| 1 | PCI riser connector 2 |
| 2 | PCI riser-card assembly (full-height, half-length PCIe cards) |
| 3 | PCI riser-card assembly (low profile PCIe cards) |
| 4 | PCI riser connector 1 |

| 1 | PCI riser-card assembly 2 |
| 2 | PCI riser-card assembly 1 |
Remove the PCIe card.
Remove the DIMM air baffle or PCIe card.