Intel D865GRH D865GRH_TechProdSpec. - Page 23

Memory Configurations

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Product Description 1.6.1 Memory Configurations The Intel 82865G GMCH component provides two features for enhancing memory throughput: • Dual Channel memory interface. The board has two memory channels, each with two DIMM sockets, as shown in Figure 3 • Dynamic Addressing Mode. Dynamic mode minimizes overhead by reducing memory accesses Table 6 summarizes the characteristics of Dual and Single Channel configurations with and without the use of Dynamic Mode. Table 6. Characteristics of Dual/Single Channel Configuration with/without Dynamic Mode Throughput Level Configuration Characteristics Highest Dual Channel with Dynamic Mode All DIMMs matched (Example configurations are shown in Figure 4) Dual Channel without Dynamic Mode • DIMMs matched from Channel A to Channel B • DIMMs not matched within channels (Example configuration is shown in Figure 5) Single Channel with Dynamic Mode Single DIMM or DIMMs matched within a channel (Example configurations are shown in Figure 6) Lowest Single Channel without Dynamic Mode DIMMs not matched (Example configurations are shown in Figure 7) Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel B, DIMM 1 OM15915 Figure 3. Memory Channel Configuration 23

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Product Description
23
1.6.1
Memory Configurations
The Intel 82865G GMCH component provides two features for enhancing memory throughput:
•
Dual Channel memory interface.
The board has two memory channels, each with two DIMM
sockets, as shown in Figure 3
•
Dynamic Addressing Mode.
Dynamic mode minimizes overhead by reducing memory
accesses
Table 6 summarizes the characteristics of Dual and Single Channel configurations with and
without the use of Dynamic Mode.
Table 6.
Characteristics of Dual/Single Channel Configuration with/without Dynamic Mode
Throughput
Level
Configuration
Characteristics
Highest
Dual Channel with Dynamic Mode
All DIMMs matched
(Example configurations are shown in Figure 4)
Dual Channel without Dynamic Mode
•
DIMMs matched from Channel A to Channel B
•
DIMMs not matched within channels
(Example configuration is shown in Figure 5)
Single Channel with Dynamic Mode
Single DIMM or DIMMs matched within a channel
(Example configurations are shown in Figure 6)
Lowest
Single Channel without Dynamic Mode
DIMMs not matched
(Example configurations are shown in Figure 7)
OM15915
Channel A, DIMM 0
Channel A, DIMM 1
Channel B, DIMM 0
Channel B, DIMM 1
Figure 3.
Memory Channel Configuration