x8/x8/x8/x8 PCIe FH Riser Cage
Figure 47. x8/x8/x8/x8 PCIe FH Riser Cage Assembly
Table 22.  Connectors in x16/x16 PCIe FH Riser Cage Assembly
1  Auxiliary power connector
4  PCI Express 3.0 x8 (slot 2/10)
2  Auxiliary power connector
5  PCI Express 3.0 x8 (slot 3/11)
3  PCI Express 3.0 x8 (slot 1/9) 6  PCI Express 3.0 x8 (slot 4/12)
Follow the instructions in “Install a 4U PCIe riser cage” on page 220 to install the option kit.
Dual-rotor fan module upgrade kit
See this section to identify parts that are enclosed in dual-rotor fan module upgrade kit.
Notes: The following components require dual-rotor fan modules for proper cooling.  
•  PMEMs
•  3DS RDIMMs
•  Processors with model name ending in HL
•  Processors with 165 or more watts
This option kit comes with the following components. 
Chapter 4. Server options 143