Hitachi Advanced Server HA820 G2 User Guide   
Installing a tertiary riser cage
 ............................................................................................................................................. 92 
Expansion slots
 ....................................................................................................................................................... 95 
Supported PCIe form factors
 .............................................................................................................................................. 95 
Installing expansion boards
 ................................................................................................................................................ 96 
Accelerator options
 .......................................................................................................................................................... 98 
Drive cage options
 ................................................................................................................................................. 102 
Installing a front 8NVMe drive cage
 ................................................................................................................................... 102 
Installing a front 8 SFF SAS/SATA drive cage in box 1 ............................................................................................ 105 
Installing a front 8 SFF SAS/SATA drive cage in box 2 ............................................................................................ 106 
Installing a front/tertiary 2 SFF NVMe/SAS/SATA stackable drive cage
 .................................................................................... 108 
Installing a midplane drive cage
 ........................................................................................................................................ 111 
Installing a rear 2 SFF SAS/SATA drive cage in the primary or secondary riser
 .......................................................................... 113 
Installing
 a rear 2 SFF SAS/SATA drive cage over the power supplies
 ................................................................................... 116 
Installing a rear 2LFF SAS/SATA drive cage in the primary or secondary riser
 ........................................................................... 119 
Processor and heatsink options
 ................................................................................................................................ 121 
Installing a processor heatsink assembly
 ............................................................................................................................ 121 
Installing a high performance heatsink
 ............................................................................................................................... 123 
Installing the chassis intrusion detection switch
 ............................................................................................................ 128 
Installing an OCP 3.0 adapter card
 ............................................................................................................................ 129 
Installing the DSP DSC-25 2p SFP28 card
 .................................................................................................................. 130 
Installing the NS204i-p NVMe OS Boot Device option
 ................................................................................................... 132 
Installing a 
rear
 serial port interface
 .......................................................................................................................... 133 
Installing the Systems Insight Display
 ........................................................................................................................ 135 
Trusted 
Platform
 Module 2.0 G2 option
 .................................................................................................................... 137 
Overview ................................................................................................................................................................... 137 
Trusted Platform Module 2.0 guidelines
 ............................................................................................................................. 137 
Installing and enabling the TPM 2.0 G2 option
 ..................................................................................................................... 138 
Cabling .......................................................................................................................................... 144 
Cabling guidelines
 ................................................................................................................................................. 144