DFI EC300 Series - Manual (Page 50)

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50
Installing Devices
4. Insert the Expansion card with a bracket into the PCI slot that is on the riser
card. Replace the screw you removed in step 3 to secure the bracket in place.
Mounting screw
PCI
Bracket
Expansion card
Rear view
Note:
The Expansion cards used in the above illustrations may not resemble
the actual cards. These illustrations are for reference only.