Bosch Appliances Computer Hardware DVA-08K User Manual

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RAID Subsystem DVA-08K | Installation Manual
Subsystem Maintenance | en 45 
Bosch Security Systems
F.01U.027.797 | V2 | 2008.08
6.3
Replacing or Upgrading Memory Modules
6.3.1
Memory Module Installation Overview
The subsystems come with a pre-installed 256MB (or above) DDR RAM DIMM module on 
the controller. The controller supports one memory module for the capacity up to 1GB. If 
a DDR RAM DIMM modules with a different size is preferred or the original memory mod-
ule has failed in some way, the pre-installed module must be removed and replaced by a 
new one. Replacement and installation instructions are described fully below.
The DIMM module is located on the controller board. The controller board is a sensitive 
component and must be treated with care to avoid being damaged. 
6.3.2
Selecting a Memory Module
If the memory module mounted on the controller is going to be replaced, the following factors 
should be considered when purchasing replacement modules.
Pre-installed DIMM module: The subsystem comes with a 256MB DDR RAM module pre-
installed on the controller board. If you wish to change the size of the DIMM, then a new, 
separately purchased DIMM can be installed. 
DDR RAM DIMM modules supported. The subsystems support DDR RAM DIMM modules 
with the capacities ranging from 256MB to 1GB.
Installation consideration: When installing the DIMM module, it is necessary to handle the 
controller module. The controller board is more susceptible to damage than the other 
components and must therefore be handled with extreme care. All anti-static precautions 
must be strictly adhered to. 
Secure installation: When replacing the DIMM module, make sure that the new DIMM 
module is firmly in place prior to installing the controller module. If the DIMM module is 
not firmly in place, the subsystem will not run and the controller will need to be removed 
and the DIMM module correctly installed.
Purchasing consideration: When purchasing a DDR RAM DIMM to install on the controller 
board, contact your vendor for an updated list of certified modules.
6.3.3
DIMM Module Installation
If a DIMM module fails or a DIMM module with a higher memory capacity is required, the 
DIMM module must be replaced.
1.
Remove the controller module. 
2.
Remove the previously installed DIMM module from the DIMM socket. To do this, push 
the white module clips on the sides of the DIMM module down together. By doing this, 
the previously installed modules will be ejected from the DIMM socket. (See Figure 6.2)
CAUTION! 
The controller board in the module contains sensitive components. Please ensure that all anti-
static precautions stipulated above are strictly adhered to. Only qualified technicians can 
replace a DIMM module.
CAUTION! 
The pre-installed modules must be removed prior to installing new memory modules. Do this 
with care. Sensitive components can be damaged during the process.