Lenovo ThinkServer RD550 - Manual (Page 150)

1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Prepare your server. See “Removing or extending the server from the rack cabinet” on page 63.
3. Remove the server cover. See “Removing the server cover” on page 63.
4. Locate the riser card assembly that you want to remove. See “Server components” on page 25.
5. Grasp the riser card assembly that you want to replace by its edges and carefully lift it straight up and
off the chassis.
Figure 115. Removing the riser card assembly
6. If there is any PCIe card (such as an Ethernet card) installed on the riser card assembly, record the
cable connections, and then disconnect all cables from the card to completely remove the riser card
assembly out of the chassis. Then, remove the PCIe card from the riser card assembly. See “Removing
a PCIe card” on page 93.
7. Remove the two screws that secure the failing riser card. Then, remove the failing riser card from
the bracket.
Figure 116. Removing the riser card
8. Touch the static-protective package that contains the new riser card to any unpainted surface on the
outside of the server. Then, remove the new riser card from the package.
136 ThinkServer RD550 User Guide and Hardware Maintenance Manual