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Technical data • Individual components
Automation PC 820 User's Manual V 1.00
3.2 Main memory
The CPU boards offer room for two main memory modules. Dual-Channel memory technology
is supported when two modules of the same size (e.g. 1 GB) are plugged in. This technology is
not supported when two modules of different sizes (e.g. 1 GB and 2 GB) are plugged in.
When two 2 GB modules are plugged in, only 3 GB of main memory can be used.
3.2.1 Technical data
Figure 16: Main memory
Features 5MMDDR.0512-01 5MMDDR.1024-01 5MMDDR.2048-01
Quantity 512 MB 1 GB 2 GB
Type DDR2 SDRAM / PC2-5300
Construction 200 Pin SO-DIMM
Organization 64M x 64-bit 128M x 64-bit 256M x 64-bit
Table 50: Technical data - Main memory
Information:
A main memory module can only be replaced at the B&R plant.