Figure 233: Removing screws of the bottom system board
â–¶
Remove the 15 screws (see circles).
â–¶
Use both hands to lift the system board out of the chassis in a slight angle.
Thereby you pull the connectors out of the I/O panel.
CAUTION
â–¶
Always take the bottom system board with the knob.
â–¶
Never lift the bottom system board one-sided or at a heat
sink, because the solder connections between the socket
and the system board come under tension and increase the
risk of damage and malfunction.
â–¶
Do not damage the EMI springs which are essential to comply
with applicable EMC regulations and satisfy cooling
requirements and fire protection measures.
â–¶
Place the removed bottom system board and the new bottom system board
on an antistatic surface.
System board and components
382 Upgrade and Maintenance Manual RX4770 M6