a. Check to see if a four-slot EMC shield is installed in your system unit. The
four-slot EMC shield is a thin sheet of metal attached to the inside of the
back of your system unit around adapter slots 1, 2, 3, and 4. If a four-slot
EMC shield is installed in your system unit, then your system unit is already
properly shielded. Skip to Step 4 on page 4-53.
b. If a four-slot EMC shield is not already installed in your system unit,
shutdown your system, and remove any adapters, slot covers, and one-slot
EMC shields in slots 1, 2, 3, and 4, noting which adapter was in each slot.
(See “Removing Adapters” on page 4-80 for adapter removal instructions.)
c. To install the four-slot EMC shield, insert the four-slot EMC shield around
slots 1, 2, 3, and 4, making sure the tabs on the EMC shield are inserted in
the slots behind the system unit riser card. To keep the 4-slot EMC shield in
place, you may want to temporarily attach the shield with one of the adapter
slot screws.
d. Reinstall all adapters and slot covers (but not one-slot EMC shields) you
have removed from slots 1, 2, 3, and 4. See “Installing Adapters” on
page 4-70 for adapter installation instructions.
4-52 7043 43P Series User's Guide