Bosch DVA-12T Installation Manual download pdf (Page 46)

46 en | Subsystem Maintenance RAID Subsystem DVA-16K | Installation Manual

F.01U.027.799 | V2 | 2008.08 Bosch Security System

6.3 DIMM Module Replacement

The subsystem comes with a pre-installed 256MB capacity or above DDR RAM DIMM module

on the controller. The controller supports memory up to 1GB. If a DDR RAM DIMM module has

failed or a different size of DIMM module needs to be used, the pre-installed module must be

removed and the new one installed. Replacement and installation instructions are described

fully below.

6.3.1 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 DIMM module:

• Pre-installed DDR RAM DIMM module: The RAID subsystem comes with a 256MB capacity

or above DDR RAM DIMM pre-installed on the controller board and can support up to

1GB capacity. If you wish to change the size of the DDR DIMM, then a new DIMM must be

installed.

• Purchasing considerations: When purchasing a DDR RAM DIMM module to install on the

RAID subsystem controller board, contact your subsystem vendor for an updated list of

compatible DIMM modules.

• DDR RAM DIMM module supported: The RAID subsystem supports DDR RAM DIMM mod-

ules with memory capacities between 256MB and 1GB.

• Installation considerations: When installing the DDR RAM DIMM module, it is necessary to

remove the controller module. 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, make sure that the new DIMM

module is firmly in place prior to re-installing the controller module. If the DIMM module

is not firmly in place, the subsystem will not run and the whole procedure must be

repeated.

6.3.2 DIMM Module Replacement Procedure

If a DIMM module fails or if a DIMM module with a higher memory capacity is required, the

onboard DIMM module must be replaced. To replace the DIMM module:

1. Remove the controller module. (See Section 6.2.2 Removing the Controller Module)

2. Remove the previously installed DIMM module from the DIMM socket. Pull down the

white clips on either side of the DIMM module to a 45-degree angle to dislodge the DIMM

module. (See Figure 6.6)

Fig. 6.6 Removing the DIMM Module

NOTICE!

If you are going to replace or upgrade a DIMM module, please follow the instructions below. If

you do not want to replace or upgrade a DIMM module and would like to install a controller

module, please go to Section 6.2.3 Replacing the Controller Module.

White ClipWhite Clip

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Bosch DVA-12T Installation Manual Page 46