Apple performa 6200.6300 Servicehandbuch
REA Procedures
Repair Overview for Freezing and Video Color Hue Issues - 5
Why Replace the EMI Clips?
Replacing the EMI clips prevents possible damage to the
logic board during the installation of expansion boards.
Why Replace the Ethernet Card Fence?
Installing a hooked fence on the Ethernet card provides a way
to hold the card more securely in the communications slot.
Without the hooked fence, the card could rock out of the slot
and cause intermittent network connection.