Acer Altos G900 User Manual page 72

56
To install the processor board
1 Insert the tabs on the processor board into the slots on the
mainboard bracket (Figure 23, A).
2 With the handles in the open position, lower the processor board
until it rests on the mainboard bracket.
3 Close and press down on the handles until the processor board is
fully engaged with the sockets on the mainboard.
Figure 22 - Removing the processor board
3 Hardware configuration