MSI MS-6341 Manual page 19

Hardware Setup
Module Installation Procedures
You can intall the single sided or double sided DIMM according to
your needs. Different from the SDRAM DIMM, the DDR DIMM has only one
notch on the center of module. The pins on the either side of the breasks are
different. Pay attention to the orientation as shown below. The module will
only fit in the right orientation.
1. Insert the DIMM module vertically into the DIMM slot. Make sure the
notch is on the right orientation.
2. The plastic clip at the side of the DIMM slot will automatically close.
Volt
Single Sides
Double Sides DIMM
2-7