Fujitsu PRIMERGY TX100 S3 Core Edition Upgrade And Maintenance Manual page 205

System board and components
Swapping the processor
Figure 134: Unlatching the socket lever (new system board)
Ê Unlatch the socket lever on the new system board by pushing it down and
away from the socket (1).
Ê Fold back the socket release lever to disengage the load plate (2).
Upgrade and Maintenance Manual 205
TX100 S3 Core Edition