Lenovo Flex System x440 Compute Node Installation And Service Manual page 904

The memory is accessed internally through 16 channels (four channels for each microprocessor). Each
channel contains three DIMM connectors. Each channel can have a maximum of eight ranks. The following
table lists each channel and shows which DIMM connectors are in the channel.
Table 12. Memory-channel configuration
Microprocessor
Microprocessor 1
Microprocessor 2
Microprocessor 3
Lenovo Flex System x440 Compute NodeInstallation and Service Guide
894
Memory channel
Channel 1
Channel 0
Channel 2
Channel 3
Channel 1
Channel 0
Channel 2
Channel 3
Channel 2
Channel 3
Channel 1
DIMM connectors
1, 2, and 3
4, 5, and 6
7, 8, and 9
10, 11, and 12
13, 14, and 15
16, 17, and 18
19, 20, and 21
22, 23, and 14
25, 26, and 27
28, 29, and 30
31, 32, and 33