Compaq dx7400 Service Reference Guide - HP Compaq dx7400 Business PC - Page 73

Expansion Cards The computer has one standard PCI expansion slot that can accommodate an expansion card up to 17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 56). 2. Remove the access panel. (Access Panel on page 57) 3. On the rear panel of the computer, remove the screw that secures the slot cover lock in place (1) and slide the slot cover lock up and away from the slots to remove it from the computer (2). 4. If you are installing an expansion card for the first time, you must use a flatblade screwdriver to pry out the metal shield on the rear panel that covers the expansion slot. Be sure to remove the appropriate shield for the expansion card you are installing. Removable Shield Top shield Second shield Third shield Bottom shield Expansion Card Type PCI Express x16 PCI Express x1 PCI Express x1 PCI Expansion Cards 63