Rear riser assembly and PCIe adapter replacement

Follow the instructions in this section to remove and install a rear riser assembly and PCIe adapter. The PCIe adapter can be an Ethernet card, a host bus adapter, a RAID adapter, an add-in PCIe SSD adapter, or any other supported PCIe adapters. PCIe adapters vary by type, but the installation and removal procedures are the same.

Riser cages vary by server rear configurations.

Note

For replacement of the 3FH riser cage for Neptune Core Module, see Lenovo Processor Neptune Core Module replacement (trained technicians only) or Lenovo Compute Complex Neptune Core Module replacement (trained technicians only).
For replacement of graphics processing units (GPUs), see GPU replacement.
For replacement of the 1FH and 3FH M.2 riser cages, see M.2 drive cage and drive backplanes replacement.
For configurations with 8 x 2.5-inch rear drive cage, a flat screwdriver or a coin is needed to release the latch of an external small form-factor pluggable (SFP) cable connected to a PCIe adapter at slot 1 or 5.

Table 1. Supported rear riser cages
Server configuration	Riser cage 1	Riser cage 2	Riser cage 3	Riser cage 4
Configuration with 10 PCIe slots	2LP riser cage	3FH riser cage 3FH M.2 riser cage	3FH riser cage 3FH M.2 riser cage 3FH riser cage for Neptune Core Module	2LP riser cage
Configuration with a 4 x 2.5-inch rear drive cage	2LP riser cage	3FH riser cage 3FH M.2 riser cage	1FH riser cage 1FH M.2 riser cage	N/A
Configuration with an 8 x 2.5-inch rear drive cage	2FH riser cage	1FH riser cage 1FH M.2 riser cage	1FH riser cage 1FH M.2 riser cage	N/A
Configuration with a 4 x 3.5-inch rear drive cage	N/A	1FH riser cage 1FH M.2 riser cage	1FH riser cage 1FH M.2 riser cage	N/A

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