HP Compaq Presario,Presario 7954 Supplementary Manual page 38

13. Firmly press the new card into the slot on the system board, using a slightly
rocking motion.
14. Replace the expansion card retention bracket to secure the new card in place.
15. Replace the computer cover.
If you installed a PCI card, the next time you turn on the computer, Microsoft
Windows will automatically detect the new card. If you installed an ISA card,
follow the manufacturer's instructions to complete the installation.