Dell PowerEdge R640 EMC PowerEdge R640 Installation and Service Manual - Page 90

General memory module installation guidelines

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Figure 39. System memory view Memory channels are organized as follows: Table 50. Memory channels Proce Channel 0 ssor Channel 1 Proces Slots A1 and A7 sor 1 Slots A2 and A8 Proces Slots B1 and B7 sor 2 Slots B2 and B8 Channel 2 Slots A3 and A9 Slots B3 and B9 Channel 3 Channel 4 Slots A4 and A10 Slots A5 and A11 Slots B4 and B10 Slots B5 and B11 Channel 5 Slots A6 and A12 Slots B6 and B12 General memory module installation guidelines To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory. If your system's memory configurations fail to observe these guidelines, your system might not boot, stop responding during memory configuration, or operate with reduced memory. The memory bus may operate at frequency can be 2933 MT/s, 2666 MT/s, 2400 MT/s, or 2133 MT/s depending on the following factors: 90 Installing and removing system components

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Figure 39. System memory view
Memory channels are organized as follows:
Table 50. Memory channels
Proce
ssor
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Proces
sor 1
Slots A1 and A7
Slots A2 and A8
Slots A3 and A9
Slots A4 and A10
Slots A5 and A11
Slots A6 and A12
Proces
sor 2
Slots B1 and B7
Slots B2 and B8
Slots B3 and B9
Slots B4 and B10
Slots B5 and B11
Slots B6 and B12
General memory module installation guidelines
To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory. If your
system's memory configurations fail to observe these guidelines, your system might not boot, stop responding during memory
configuration, or operate with reduced memory.
The memory bus may operate at frequency can be 2933 MT/s, 2666 MT/s, 2400 MT/s, or 2133 MT/s depending on the following
factors:
90
Installing and removing system components