AD App Direct Mode
B Optane PMem module is installed
D DDR4 DIMM is installed
The following DDR4 DIMMs are supported:
● RDIMM 2R 32 GB
● RDIMM 2R 64 GB
● RDIMM 3DS 128 GB
● RDIMM 4R 64 GB
● RDIMM 4R 128 GB
10.3 Installing memory modules
For memory slots on the bottom system board:
Field Replaceable Unit
(FRU)
Hardware: 20 minutes
Tools: Phillips PH2 / (+) No. 2 screw driver (for cover 2)
For memory slots on the top system board:
Upgrade and Repair Unit
(URU)
Hardware: 5 minutes
Tools: Phillips PH2 / (+) No. 2 screw driver (for cover 2)
Main memory
RX4770 M6 Upgrade and Maintenance Manual 243