Valid Front Side Bus And Memory Speeds; System Memory Dimm Configuration Support; Table 3-3. Intel ® X38 Valid Fsb/Memory Speed Configurations - Intel X38 Configuration Manual

Supported Memory Technologies and Configurations
3.4

Valid Front Side Bus and Memory Speeds

The X38 Express Chipset supports the following Front Side Bus (FSB) and system
memory speed configurations.
®
Table 3-3. Intel
Memory
Type
DDR2
DDR3
Note: The X38 Express Chipset does not support system memory frequencies that exceed
the frequency of the Front Side Bus. If memory with higher frequency capabilities than
that of the FSB is populated, the memory will be under-clocked to align with the FSB.
3.5

System Memory DIMM Configuration Support

The X38 Express Chipset directly supports one or two channels of DDR2 or DDR3
memory with the following DIMM configurations:
⎯ Supports one or two DDR2 or DDR3 DIMM modules per channel.
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X38 Valid FSB/Memory Speed Configurations
FSB
1333
MHz
1333
MHz
1067
MHz
1067
MHz
800 MHz
800 MHz
1333
MHz
1333
MHz
1333
MHz
1067
MHz
1067
MHz
800 MHz
Single
DRAM Data
Channel Peak
Rate
Bandwidth
800 MT/s 6.4 GB/s
667 MT/s 5.3 GB/s
800 MT/s 6.4 GB/s
667 MT/s 5.3 GB/s
800 MT/s 6.4 GB/s
667 MT/s 5.3 GB/s
1333 MT/s 10.5 GB/s
1067 MT/s 8.5 GB/s
800 MT/s 6.4 GB/s
1067 MT/s 8.5 GB/s
800 MT/s 6.4 GB/s
800 MT/s 6.4 GB/s
§
Dual Channel
Peak
Bandwidth
12.8 GB/s
10.6 GB/s
12.8 GB/s
10.6 GB/s
12.8 GB/s
10.6 GB/s
21.0 GB/s
17.0 GB/s
12.8 GB/s
17.0 GB/s
12.8 GB/s
12.8 GB/s
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