Figure 233: Removing screws of the bottom system board
▶
Remove the 15 screws (see circles).
▶
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
▶
Always take the bottom system board with the knob.
▶
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.
▶
Do not damage the EMI springs which are essential to comply
with applicable EMC regulations and satisfy cooling
requirements and fire protection measures.
▶
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
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