Chapter 5: Subsystem Maintenance and Upgrading
DIMM
Module Replacement
5-7
5.3
DIMM Module Replacement
The subsystem comes with a preinstalled 512MB capacity or above DDR
RAM DIMM module on each controller. The controller supports memory
up to 2GB in size. If any of the memory modules have failed or a different
size DIMM module is preferred, the preinstalled module can be replaced.
Replacement and installation instructions are described fully below.
5.3.1 DIMM Module Considerations
If the memory module on the controller module is going to be replaced, the
following issues must be considered when purchasing a replacement
module:
•
Purchasing considerations:
Contact your subsystem vendor for an
updated list of compatible DIMM modules.
IMPORTANT!
The DIMM modules that reside on partner controllers must be exactly the
same, of the SAME SIZE and SPEED.
•
DDR RAM DIMM modules supported:
The controller supports a
DDR RAM DIMM module with memory capacities ranging from
512MB to 2GB.
•
The physical size:
The controller only supports DDR RAM DIMM
modules those are smaller than 30.5mm wide (1.2 inches).
•
Installation considerations:
When installing the DIMM module, it is
necessary to remove the controller module from the chassis and then
remove the module from the controller. The controller board is more
susceptible to damage than the other components and must be handled
with extreme care.
•
Secure installation:
When replacing the DIMM module(s), make sure
that the new DIMM module(s) are firmly in place prior to re-installing
the controller module(s). If the DIMM module(s) are not firmly in
place, the subsystem will not be able to run and the whole procedure
must be repeated.
5.3.2 DIMM Module Upgrade/Replacement Procedure
To replace the DIMM module: