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 XMM2 operate in memory
channel A. Sockets XMM3 and XMM4 operate in memory channel B.
The system board shown may differ from the one in your product.
The system will automatically operate in single channel mode, dual channel Asymmetric mode,
or a a higher-performing dual channel Interleaved 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 dual channel Asymmetric 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.
The system will operate in a higher-performing dual channel Interleaved 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. However, the technology and device width can vary between the
channels, For example, if Channel A is populated with two 256 MB DIMMS and Channel B
is populated with one 512 MB DIMM, the system will operate in Interleaved mode.
In any mode, the maximum operational speed is determined by the slowest DIMM in the
system. For example, if the system is populated with a DIMM that is 400 MHz and a second
DIMM that is 533 MHz, the system will run at the slower of the two speeds.
Item
DIMM Socket
Socket Color
Item
DIMM Socket
Socket Color
1
3
2
4
