Because of chipset limitations
* To avoid the system being unable to start or the memory being incorrectly detected, if only one memory module is to be installed, we suggest that you install it on the DDR2_1 or DDR2_3 socket; to install two memory modules, we suggest that you install them on the DDR2_1 and DDR2_3 sockets.
* Do not populate both DIMM sockets of the same channel (e.g. DDR and DDR2), or populate 4 DIMM sockets with double-sided memory modules to prevent system's failure to start or incorrect detection of memory modules. Please refer to the user manual for the memory configurations table.