â–¶
Remove the 12 screws (see blue circles) from the bottom system board.
Figure 203: Removing the bottom system board
â–¶
Use both green knobs (see orange circles) to lift the bottom system board
carefully 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.
â–¶
Remove both green knobs from the bottom system board (see orange
circles in Figure 202).
â–¶
Remove the TPM, see "Removing the TPM" on page
319.
System board and components
364 Upgrade and Maintenance Manual RX4770 M5
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