HP Elite 7100 Maintenance & Service Guide: HP Elite 7100 Series Microtower - Page 41

Populating DIMM Sockets,

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Populating DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM2 and DIMM4 operate in memory channel A. Sockets DIMM1 and DIMM3 operate in memory channel B. Figure 7-5 DIMM Socket Locations Table 7-1 DIMM Socket Locations Item Description 1 DIMM1 socket, Channel A 2 DIMM2 socket, Channel A (populate first) 3 DIMM3 socket, Channel B 4 DIMM4 socket, Channel B (populate second) NOTE: A DIMM must occupy the XMM2 socket. Socket Color Black Blue Black Blue The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed. ● The system will operate in single channel mode if the DIMM sockets are populated in one channel only. ● The system will operate in a higher-performing dual channel mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The technology and device width can vary between the channels. For example, if Channel A is populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system will operate in dual channel mode. ● The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to Memory 33

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Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are
labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM2 and DIMM4 operate in memory
channel A. Sockets DIMM1 and DIMM3 operate in memory channel B.
Figure 7-5
DIMM Socket Locations
Table 7-1
DIMM Socket Locations
Item
Description
Socket Color
1
DIMM1 socket, Channel A
Black
2
DIMM2 socket, Channel A (populate
first)
Blue
3
DIMM3 socket, Channel B
Black
4
DIMM4 socket, Channel B (populate
second)
Blue
NOTE:
A DIMM must occupy the XMM2 socket.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the DIMMs are installed.
●
The system will operate in single channel mode if the DIMM sockets are populated in one
channel only.
●
The system will operate in a higher-performing dual channel mode if the total memory capacity
of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B.
The technology and device width can vary between the channels. For example, if Channel A is
populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system
will operate in dual channel mode.
●
The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is
not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel
populated with the least amount of memory describes the total amount of memory assigned to
Memory
33