Intel DQ57TM - Manual (Page 43)

Installing and Replacing Desktop Board Components
43
Installing and Removing System Memory
Desktop board DQ57TM has four 240-pin DDR3 DIMM sockets arranged as DIMM 0 and
DIMM 1 in both Channel A and Channel B.
NOTE
A DIMM must be present in at least one of the DIMM 0 sockets when you are using
only one or two DIMMs with a processor that does not support Intel Graphics
Technology.
Guidelines for Dual Channel Memory Configuration
Before installing DIMMs, read and follow these guidelines for dual channel memory
configuration.
Two or Four DIMMs
Install a matched pair of DIMMs equal in speed and size (see Figure 15) in the DIMM 0
(blue) sockets of channels A and B.
Figure 15. Example Dual Channel Memory Configuration with Two DIMMs