HP Vectra VLi8 Supplementary Manual page 24

NOTE
2 How to Install and Replace Components In Your Desktop PC
Installing Accessory Boards
Installing an Accessory Board
Use only XT format ISA accessory boards (width less than 10.4 cm or
4.09 inches).
1 Remove the computer's cover (described in this chapter).
2 Remove the retaining bracket.
3 If the selected accessory board slot is located behind the processor,
you may need to slide out the system board to allow access (refer to
see "Replacing the System Board" on page 72 for information on how
to do this).
4 Remove the slot cover.
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