
Preface
5
2. Disconnect the computer and peripherals from their power sources or
subsystems to prevent electric shock or system board damage. This does not
apply when hot swapping parts.
3. Follow the guidelines provided in “Preventing Electrostatic Discharge”on the
following page.
4. Disconnect any telephone or telecommunications lines from the computer.
In addition, take note of these safetyguidelines when appropriate:
To help avoid possible damage to system boards, wait five seconds after
turning off the computer before removing a component, removing a system
board, or disconnecting a peripheral device from the computer.
When you disconnect a cable, pull on its connector or on its strain-relief loop,
not onthe cable itself. Some cables have a connector with locking tabs. If you
are disconnecting this type of cable, press inon the locking tabs before
disconnecting the cable.As you pull connectors apart, keep themevenly
aligned to avoid bending anyconnector pins.Also,before connecting a cable,
make sure both connectors are correctlyoriented and aligned.
CAUTION
Do not attempt to service the system yourself except as explained in this user’s guide.
Follow installation and troubleshooting instructions closely.
Preventing Electrostatic Discharge
Static electricity can harm system boards. Perform service at anESD workstation
and follow properESD procedure to reduce the risk of damage to components. We
stronglyencourage you to follow proper ESD procedure, whichcan include wrist
straps and smocks, when servicing equipment.
Youcanalso takethe following steps to prevent damage fromelectrostatic
discharge (ESD):
When unpacking a static-sensitive component from its shipping carton, do not
remove the component’s antistatic packing material until youare readyto install
the component ina computer. Just before unwrapping the antistatic packaging,
be sure youare atan ESD workstationor grounded. This will discharge any
static electricity that may have built up in your body.
When transporting a sensitive component, first place it inanantistatic container
or packaging.