Silicon Graphics 1450, Maintenance Manual

Page: 81 / 162

Add-in Boards
007-4276-001 65
3. Insert the tip of a small flat-head screwdriver or equivalent under the plastic tab on
the snap-on plastic retainer.
4. Gently push down on the screwdriver to lift the battery.
5. Remove the battery from its socket.
6. Dispose of the battery according to local ordinance.
7. Remove the new lithium battery from its package and, being careful to observe the
correct polarity, insert it in the battery socket.
Add-in Boards
Follow the instructions in this section to remove and install add-in boards.
Figure 3-1 on page 52 identifies the add-in board locations. The baseboard contains the
following eight PCI slots:
• Two 32-bit, 33-MHz half-length PCI slots
• Two 64-bit, 66/33-MHz hot-plug PCI slots
• Four 64-bit, 33-MHz hot-plug PCI slots
Typically, the hot-plug PCI add-in boards are held in the hot-plug slots by a front and rear
hot-plug retention mechanism. See Figure 3-6 on page 68.
Note: At this time, the Linux operating system does not support use of the PCI hot-plug
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP-compatible in
order to use the PHP feature.
Removing a 32-bit, 33-MHz Half-Length PCI Add-in Board
The add-in boards for the half-length 33-MHz PCI slots are not hot-pluggable. In other
words, you must turn off the AC power to the system first before installing boards at
these locations.