Silicon Graphics 1400, Maintenance And Upgrade Manual

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Removing a PCI option Board
9
Removing a PCI option Board
Note:
Slot covers must be installed on all vacant expansion slots. This maintains the
electromagnetic emissions characteristics of the system and ensures proper cooling of
system components.
1. Read and observe the safety and ESD precautions listed at the beginning of this
chapter.
2. Disconnect any cables attached to the board you are removing.
3. Remove and save the screw that attaches the existing board retaining bracket to the
chassis.
4. Holding the board by its top edge or upper corners, carefully pull it out. Do not
scrape the board against other components.
5. Store board in an antistatic protective wrapper.
6. If you are not reinstalling a board in the same slot, install a slot cover over the
vacant slot. The tapered foot of the cover must fit into the mating slot in the
expansion slot frame.
7. Use the screw removed earlier to fasten the new board to the chassis. Tighten the
screw firmly (6.0 inch-pounds).
8. Running the SSU is optional after you remove a PCI or ISA board.
Removing the Front Panel Board
The front panel board contains the system controls and indicators. It is mounted on a
snap-on standoff and a threaded standoff inside the chassis.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the access cover.
3. Disconnect the fan cables and remove the fan housing assembly, see Figure 1-4.
4. Disconnect the 3.5-inch diskette drive cables. Remove the diskette drive carrier from
the chassis. Save the screw to use later.
5. On the front panel board, remove and save the screw from the threaded standoff to
use later.