For your safety and to maintain optimum computer performance, always follow these basic precautions with your desktop computer:
vKeep the cover closed whenever the computer is plugged in.
vRegularly inspect the outside of the computer for dust accumulation.
vRemove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or
vDo not block or restrict airflow into the front of the computer.
vDo not block the airflow vents on the back of the computer.
vDo not store or operate your computer inside furniture, as this might increase the risk of overheating.
vAirflow temperatures into the computer should not exceed 35° C (95° F).
vDo not use
CD and DVD drive safety
CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or otherwise physically damaged, it is possible for the disc to break apart or even shatter when the CD drive is in use. To protect against possible injury due to this situation, and to reduce the risk of damage to your machine, do the following:
vAlways store CD/DVD discs in their original packaging
vAlways store CD/DVD discs out of direct sunlight and away from direct heat sources
vRemove CD/DVD discs from the computer when not in use
vDo not bend or flex CD/DVD discs, or force them into the computer or their packaging
vCheck CD/DVD discs for cracks before each use. Do not use cracked or damaged discs
Additional safety information
DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock hazard, connect and disconnect cables as shown below when installing, moving, or opening the covers of this product or attached devices. If the
xThinkPad® T40 Series Service and Troubleshooting Guide