Populating memory module slots
There are two memory module slots, one slot per channel. The slots are labeled DIMM1 and DIMM3. The
DIMM1 slot operates in memory channel B. The DIMM3 slot operates in memory channel A.
Memory 1 slot, Channel B
Memory 3 slot, Channel A
The system automatically operates in single-channel mode, dual-channel mode, or flex mode, depending on
how the memory modules are installed.
The system operates in single-channel mode if only one memory module slot is populated.
The system operates in higher-performing, dual-channel mode if the capacity of the memory modules
in Channel A and Channel B are equal.
The system operates in flex mode if the capacity of the memory modules in Channel A and Channel B are
not equal. In flex mode, the channel populated with the least amount of memory determines the total
amount of memory that is assigned to dual-channel operation, and the remainder is assigned to single-
channel operation. In flex mode, install the memory module with the larger capacity in the DIMM3 slot
In any mode, the maximum operational speed is determined by the slowest memory module in the
System Board Label