Removing A 64-Bit, 66/33-Mhz Hot-Plug Pci Add-In Board - Silicon Graphics 1450 Maintenance Manual

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Removing a 64-bit, 66/33-MHz Hot-Plug PCI Add-in Board

007-4276-001
Warning:
The on/off button on the front panel does not turn off the system AC
power. To remove power from the system, you must unplug the AC power cords from
the wall outlet or the system.
Caution: Do not overload the baseboard by installing add-in boards that draw excessive
current.
Caution: Add-in boards can be extremely sensitive to ESD and always require careful
handling. After removing the board from its protective wrapper or from the baseboard,
place it component-side up on a grounded, static-free surface or conductive foam pad, if
available. Do not slide the board over any surface.
1. Remove the add-in board from its protective wrapper. Be careful not to touch the
components or gold edge connectors. Place the board component-side up on an
antistatic surface.
2. Record the serial number of the add-in board in your equipment log. See
"Equipment Log" on page 84.
3. Set jumpers or switches on the PCI board according to the manufacturer's
instructions.
4. Remove and save the screw that attaches the existing board or expansion slot cover
to the chassis.
5. Remove and save the expansion slot cover.
6. Hold the add-in board by its top edge or upper corners. Firmly press it into an
expansion slot on the baseboard. The tapered foot of the board-retaining bracket
must fit into the mating slot in the expansion slot frame. Install a PCI board
component-side down.
7. Use the screw removed earlier to fasten the new board-retaining bracket to the
chassis. Tighten the screw firmly (6.0 inch-pounds). Attach cables if necessary.
See Figure 3-6 for an illustration of the front hot-plug retention mechanism.
Add-in Boards
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