System expansions
Information about boards
Take care with the locking mechanisms (catches and centring pins) when you
are replacing boards or components on boards.
Note that some components on the mainboard may be very hot if the device was
in use shortly before the casing was removed.
To prevent damage to the board or the components and conductors on it, please take care when
you insert or remove boards. Make sure expansion boards are inserted straightly.
Never use sharp objects (screwdrivers) for leverage.
Boards with electrostatic sensitive devices (ESD) are identi
fi
able by the label
shown.
When handling boards
fi
tted with ESDs, you must always observe the
following points:
•
You must always discharge static build up (e.g. by touching a grounded
object) before working.
•
The equipment and tools you use must be free of static charges.
•
Only touch or hold the boards by the edge or, if present, at the areas
marked green (Touch Points).
•
Never touch pins or conductors on boards
fi
tted with ESDs.
Preparing to remove components
Please observe the safety notes in the Chapter
Pull the mains plug out of the socket provided with contact protection.
►
Switch the device off.
The device should not be in energy-saving mode.
►
Remove all the cables from the device.
►
Place the device on a stable,
fl
at and clean surface. If necessary, place a slip-resistant
cloth on this surface to prevent the device from being scratched.
Removing the service cover
►
Prepare for removal (see
"Information about boards", Page 49
).
►
Remove the cover for the ports (see
"Removing the cover for external devices ports", Page 23
).
Fujitsu
49
