Artesyn ATCA-9405 Installation and Use (May 2014) - Manual (Page 74)

Service Processor
ATCA-9405 Installation and Use (6806800M71G) 74
DIMMs with x4 memory devices are not supported by the memory controller.
Default main memory size is 2 GB using one Smart Modular SG572568EMR069P2SG DIMM
module. The three preferred DIMM modules for P2020 are listed in the table below, providing
up to 8 GB of DDR3 main memory.
4.4.4 Persistent Memory
The P2020 offers both hardware and software options to support persistent main memory.
The persistent memory is an array of random access memory that preserves its contents
during a warm/soft reset. Persistent memory is a necessary prerequisite for performing post
mortem analysis of log data after reset and reboot of the payload CPU.
For persistent memory support on ATCA-9405, a dedicated register is implemented in the Glue
Logic FPGA to enable or disable persistent memory by software. If persistent memory is
enabled, the contents of the main memory stay unchanged after any applied reset, except
power-up reset.
After reset is released and the board is booted, the application must check the persistent
memory bit in FPGA and (if set) initialize the main memory but keep persistent memory area
untouched.
Table 4-3 P2020 Preferred Memory Modules
Characteristics 2 GB DIMM 4 GB DIMM 8 GB DIMM
Vendor Smart Modular Smart Modular Smart Modular
Device SG572568EMR069P2SG SG5721288EMR069P2SD SG5721G8EMR069P2SA
Size 2 GB 4 GB 8 GB
Type DDR3-1333 DDR3-1333 DDR3-1333
CAS latency 9-9-9 9-9-9 9-9-9
Organization 18*128Mx8 (1Gb die) 18*256Mx8 (2Gb die) 18*512Mx8 (4Gb die)
Number of Ranks 2 2 2
Package 240-pin VLP Registered DIMM with ECC
Oracle Number 9706802A83 9706802A73 9706802A20