The System Bus; With A System Bus - HP 98568A Installation Instruction

HP 98248A Floating-Point Accelerator
1. You have no empty system slots in your computer.
2. Your video output board consists of two printed circuit boards.
If either of these conditions is true, you will need an expander, and the video
board must be placed in it. If you do not know whether your video board
contains two printed-circuit boards, check it by loosening the two screws
securing it and sliding it out of the computer.
The System Bus
The hardware installation process can take either of two paths, depending upon
whether your computer has a System Bus. An installation procedure for each
is presented here. Go to the correct procedure. For example, the Model 350
has a System Bus, the Model 330 does not.
If you do not know whether your computer has a System Bus, look at the rear
panel of the computer. The System Bus is a metal plate covering two or more
slots. If your computer has such a plate, refer to the procedure titled, "With
a System Bus". Otherwise, refer to the procedure titled, "Without a System
Bus".
With a System Bus
1. Make sure that the computer and expander are turned off and the power
cords removed.
Caution
In
the following steps, handle the circuit boards as little as
possible. Handle them by the edges or backplate only.
2. Locate an empty system slot in the computer, either by moving the video
board to the expander or by removing the cover plate from an empty slot.
3. Check that the empty slot is next to the System Bus. If it is not, rearrange
the boards so that it is.
4. Remove the Floating-Point Accelerator board set from the packaging
material and slide it into the empty slot. Slide the two-connector end in
first, with the board with the connectors on the bottom.
5. Loosen the screws holding the System Bus and remove it.
Adding Accessory Cards 4-3