4
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer
components and options. Improper handling of static-sensitive parts can cause damage
to the part. When you unpack an option or CRU, do not open the static-protective
package containing the part until the instructions direct you to install it.
When you handle options or CRUs, or perform any work inside the computer, take the
following precautions to avoid static electricity damage:
• Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
• Alwayshandlecomponentscarefully.Handleadapters,memorymodules,andother
circuit boards by the edges. Never touch exposed circuitry.
• Preventothersfromtouchingcomponents.
• Whenyouinstallastatic-sensitiveoptionorCRU,touchthestatic-protective
package containing the part to a metal expansion slot cover or other unpainted
metal surface on the computer for at least two seconds. This reduces static
electricity in the package and your body.
• Whenpossible,removethestatic-sensitivepartfromthestatic-protectivepackaging
and install the part without setting it down. When this is not possible, place the
static-protective packaging on a smooth, level surface and place the part on it.
• Donotplacethepartonthecomputercoverorothermetalsurface.
Power cords and power adapters
Use only the power cords and power adapters supplied by the product manufacturer.
The power cords must be safety approved. For Germany, it must be H05VV-F, 3G,
0.75 mm
2
, or better. For other countries, the suitable types must be used accordingly.
Never wrap a power cord around a power adapter or other object. Doing so can stress
the cord in ways that can cause the cord to fray, crack, or crimp. This can present a
safety hazard.
Always route power cords so that they will not be walked on, tripped over, or pinched
by objects.
Protect power cords and power adapters from liquids. For instance, do not leave your
power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned
with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or
power adapter has been stressed by misuse. Liquids also can cause gradual corrosion
of power cord terminals and/or the connector terminals on a power adapter, which can
eventually result in overheating.
Always connect power cords and signal cables in the correct order and ensure that
all power cord connectors are securely and completely plugged into receptacles. Do
not use any power adapter that shows corrosion at the ac input pins or shows signs
of overheating (such as deformed plastic) at the ac input or anywhere on the power
adapter.
