Fujitsu PRIMERGY GX2570 M6 Upgrade And Maintenance Manual page 160

Main memory
Figure 102: Installing a memory module
▶ Align the notch on the bottom of the module with the crossbar in the slot.
▶ Press down on the memory module until the securing clips snap into the
cutouts at each end of the module.
Figure 103: Correct position of securing clips
To improve the contact of the memory module perform the following
steps:
160 Upgrade and Maintenance Manual GX2570 M6