Remove a rear riser assembly

Follow the instructions in this section to remove a rear riser assembly.

About this task

S011

CAUTION

Sharp edges, corners, or joints nearby.

The server supports different types of riser cages (see Rear riser assembly and PCIe adapter replacement).

Attention

• Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

• Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.

• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

• Before you remove any component of a RAID array (drive, RAID card, etc.), back up all RAID configuration information.

Procedure

1. Make preparation for the task.
   1. If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the server from the rack. See Remove the server from the rack.
   2. Remove the top cover. See Remove the top cover.
   3. Remove the air baffle if needed. See Remove the air baffle.
   4. Disconnect riser card cables and PCIe adapter cables from the system board assembly.
      Attention

      To avoid damaging the system board assembly, make sure to follow the instructions in Internal cable routing when disconnecting cables from the system board assembly.
2. Remove the riser assembly.
   Note

   The following illustration shows the 3FH riser assembly as example. The replacement procedure for 3FH M.2 riser cage is the same. For replacement of the 3FH riser cage for Processor Neptune Core Module, see Lenovo Processor Neptune Core Module replacement (trained technicians only).

   Figure 1. Removing the 3FH riser assembly
   
   
   1. Loosen the screw that secures the riser assembly.
   2. Grasp the riser assembly by its edges and carefully lift it out of the chassis.