Acer AN1600 - Manual (Page 12)

12
Acer AN1600 F1 Network Storage System Specifications
Independent mode (please refer to the User Guide for more information)

In this mode all memory is accessible and ECC protected
Single-processor configuration
Total
Memory
P1
1B
P1
1A
P1
2B
P1
2A
P1
3B
P1
3A
2GB 2GB
4GB 2GB 2GB
6GB 2GB 2GB 2GB
8GB 2GB 2GB 2GB 2GB
12GB 2GB 2GB 2GB 2GB 2GB 2GB
4GB 4GB
8GB 4GB 4GB
12GB 4GB 4GB 4GB
16GB 4GB 4GB 4GB 4GB
24GB 4GB 4GB 4GB 4GB 4GB 4GB
8GB 8GB
16GB 8GB 8GB
24GB 8GB 8GB 8GB
32GB 8GB 8GB 8GB 8GB
Dual-processor configuration
CPU1 CPU2
Total
Memory
P1
1B
P1
1A
P1
2B
P1
2A
P1
3B
P1
3A
P2
1B
P2
1A
P2
2B
P2
2A
P2
3B
P2
3A
4GB 2GB 2GB
8GB 2GB 2GB 2GB 2GB
12GB 2GB 2GB 2GB 2GB 2GB 2GB
16GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB
18GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB
24GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB 2GB
8GB 4GB 4GB
16GB 4GB 4GB 4GB 4GB
24GB 4GB 4GB 4GB 4GB 4GB 4GB
32GB 4GB 4GB 4GB 4GB 4GB 4GB 4GB 4GB
Mirroring mode:
•
In mirroring mode, the memory contains a primary image and a copy of the primary image therefore the
effective size of memory is reduced by one half.
• Channel 3 has no function in these modes.
• Follow the population rules described in independent mode.
• Mirroring mode needs the channel 1 & channel 2 DIMMs to be identical. DIMM slot populations within a
channel do not have to be identical but the same DIMM slot location across channel 1 and channel 2
must be the same. DIMM1A and DIMM2A should be the same type, size and manufacturer. DIMM1B
and DIMM2B memory should be the same type, size and manufacturer. DIMM1C and DIMM2C
memory should be the same type, size and manufacturer.
• Same rules apply to CPU2.
• Please refer to the User Guide for complete population rules for both single and dual processor
configurations.
Lockstep mode:
•
In Lockstep Channel Mode, each memory access is 128-bit data access that spans Channel 1 and
Channel 2. This is done to support SDDC for DRAM devices with 8-bit wide data ports. The same
address is used on both channels such that an address error on any channel is detectable.