HP 98568A Installation Instruction page 169

HP 98642A 4-Channel Multiplexer Interface
etc.) Do not remove the silver cover plates from the bottom of a Series
300 computer.
b. Insert the 4-Channel Multiplexer Interface, component side up, into the
empty even-numbered slot. Tighten the thumb screws on the metal end
plate until the end plate is flush with the back of the computer.
c. If you changed the select code of the 4-Channel Multiplexer Interface in
step 2, find this number in the set of select code labels supplied with the
interface. Affix this label to the metal end plate.
d. If you have other interface or accessory cards to install, leave the cover
plates off; otherwise, replace them.
6. Record the Select Code.
Make a note that select code 13 (or the alternate select code you chose in
step 2) has been used and is no longer available. Use the "Select Code
Record" form on the Chapter 5, "Interface Cards" tab for this purpose.
Verification Test
1. Plug in the power cord and turn your computer on. If you have systems
on-line that the computer can boot, press the space bar a few times to
suspend the automatic booting process.
2. Check the list of components displayed on the left-hand side of the screen:
• If the message,
HP98642,
appears in the list, you have correctly installed
the HP 98642A 4-Channel Multiplexer Interface .
• If the message does not appear, repeat the installation procedure, making
sure there are no select code conflicts and that the card is firmly seated in
an even-numbered slot. If the message still does not appear, call your HP
Service Representative for assistance.
Adding Interface Cards 5-73