Artesyn ATCA-7470 Installation and Use (October 2014) - Manual (Page 56)

Hardware Preparation and Installation
ATCA-7470 Installation and Use (6806800P15K) 56
2.5 Installing the Blade Accessories
The following additional components are available for the blade:
 Dual Inline Memory Module (DIMM)
 MO297 SSD Module
 Rear transition modules
 ATCA-7470 Accelerator Module
They are described in detail in the following sections. For order numbers, refer to section
Ordering Information on page 42 .
2.5.1 DIMM Memory Modules
The blade provides up to 8 memory slots for main memory DIMM modules. You may install
and/or remove DIMM memory modules in order to match the main memory size to your
needs. The corresponding installation/removal procedures are described in this section.
The location of the DIMM Memory Modules are shown in Figure "ATCA-7470 Blade Layout" on
page 52 .
When installing DIMM memory modules, the DIMM sockets farthest away on each memory
channel from the CPU device need to be populated first. Only qualified DDR3 DIMMs (Dual
Ranked RDIMM) are allowed. The reason is the thermal limit/budget of the blade and the high
variation of the power consumptions of different DIMM types. For thermal reasons, no 4-rank
DIMMs and no dual-Die DIMM are allowed.
ATCA-7470 supports low-voltage DDR3 memory. This is available upon request.