Fujitsu Primergy BX920 S4 Upgrade And Maintenance Manual page 246

System board components
Figure 105: Detaching the system board (B)
Ê Carefully shift the system board to the front (see arrow) in order to detach it
from the centering bolts (see circles).
Ê Hold the defective system board by the memory module ejectors and at a
slight angle lift it out of the chassis.
Ê If applicable, remove the TPM as described in
on page 233.
246 Upgrade and Maintenance Manual
section "Removing the TPM"
BX920 S4