Artesyn ATCA-7365-CE Installation and Use (May 2014) - Manual (Page 56)

Hardware Preparation and Installation
ATCA-7365-CE Installation and Use (6806800L73J) 56
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 12 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 2-2 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 DIMMM types. For thermal reasons, no 4-rank
DIMMs and no dual-Die DIMM are allowed.
ATCA-7365-CE supports low-voltage DDR3 memory. This is available upon request.
DIMM modules used within one channel must be based on the same memory technology.
To achieve proper functionality in all use cases, it is highly recommended to insert only one
type of memory module from one vendor across all DIMM slots on the board. If mixing
different types of DIMMs or using the same type of DIMM from different vendors on one
blade, then the full functionality in all cases cannot be guaranteed.
Damage of Circuits
Electrostatic discharge and incorrect module installation and removal can damage circuits
or shorten their life.
Before touching the module or electronic components, make sure that you are working in
an ESD-safe environment.