Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are
labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM3 operate in memory channel A.
Sockets XMM2 and XMM4 operate in memory channel B.
Figure 2-7 DIMM Socket Locations
Table 2-1 DIMM Socket Locations
Item Description Socket Color
1 XMM1 socket, Channel A (populate fourth) White
2 XMM2 socket, Channel B (populate third) White
3 XMM3 socket, Channel A (populate second) Black
4 XMM4 socket, Channel B (populate first) Black
NOTE: A DIMM must occupy the black XMM4 socket. Otherwise, the system will display
a POST error message indicating that a memory module must be installed in the wrong
socket.
14 Chapter 2 Hardware Upgrades ENWW
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