Intel D915GAG Product Specification - Page 22

Memory Configurations

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Intel Desktop Board D915GAV/D915GAG Technical Product Specification 1.6.1 Memory Configurations The Intel 82915G GMCH supports two types of memory organization: • Dual channel (Interleaved) mode. This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal. Technology and device width can vary from one channel to the other but the installed memory capacity for each channel must be equal. If different speed DIMMs are used between channels, the slowest memory timing will be used. • Single channel (Asymmetric) mode. This mode is equivalent to single channel bandwidth operation for real world applications. This mode is used when only a single DIMM is installed or the memory capacities are unequal. Technology and device width can vary from one channel to the other. If different speed DIMMs are used between channels, the slowest memory timing will be used. Figure 4 illustrates the memory channel and DIMM configuration. NOTE The DIMM0 sockets of both channels are blue. The DIMM1 sockets of both channels are black. Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel B, DIMM 1 OM16667 Figure 4. Memory Channel and DIMM Configuration 22

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Intel Desktop Board D915GAV/D915GAG Technical Product Specification
22
1.6.1
Memory Configurations
The Intel 82915G GMCH supports two types of memory organization:
•
Dual channel (Interleaved) mode
.
This mode offers the highest throughput for real world
applications.
Dual channel mode is enabled when the installed memory capacities of both
DIMM channels are equal.
Technology and device width can vary from one channel to the
other but the installed memory capacity for each channel must be equal.
If different speed
DIMMs are used between channels, the slowest memory timing will be used.
•
Single channel (Asymmetric) mode
.
This mode is equivalent to single channel bandwidth
operation for real world applications.
This mode is used when only a single DIMM is installed
or the memory capacities are unequal.
Technology and device width can vary from one
channel to the other.
If different speed DIMMs are used between channels, the slowest
memory timing will be used.
Figure 4 illustrates the memory channel and DIMM configuration.
±
NOTE
The DIMM0 sockets of both channels are blue.
The DIMM1 sockets of both channels are black.
OM16667
Channel A, DIMM 0
Channel A, DIMM 1
Channel B, DIMM 0
Channel B, DIMM 1
Figure 4.
Memory Channel and DIMM Configuration