Removal and Installation Main PCA WARNING This assembly does NOT include the PCI-to-IDE PCA (the small PCA that connects the Main PCA to the Hard Disk Drive) as it used to in the past. When installing the new Main PCA, make sure that you reuse the PCI-to-IDE PCA that was disassembled previously. WARNING If you are working with an hp designjet 5000 (C6090A/V/I, C6091A/V, C6095A/V/I, C6096A/V) and the new Main PCA has the following connectors, you do NOT need to use them (they can be ignored): 8-81 HP DesignJet 5000 and 5500 Series Printers Service Manual