Riser 3 cage
Use this section to understand the cable routing for riser 3 cage.
The following illustrations show the PCIe riser 3 cages. The riser card types vary by server model. For 
detailed information, see 
“PCIe slots and PCIe adapters” on page 64.
Gen 4 riser 3 cage Gen 5 riser 3 cage
•  “Riser card 3 power and sideband connection (Gen 4/Gen 5)” on page 290
•  “Riser card 3 (x8/x8 Gen 4 PCIe) signal cable connection” on page 291
•  “Riser card 3 (x16/x16 Gen 4 PCIe) signal cable connection” on page 292
•  “Riser card 3 (x8/x8 Gen 5 PCIe) signal cable connection” on page 293
•  “Riser card 3 (x16/x16 Gen 5 PCIe) signal cable connection” on page 294
Chapter 6. Internal cable routing 289