Fujitsu LIFEBOOK Notebook User Manual page 33

IMPORTANT NOTE
Pay attention to the following points when the PC power is on:
• Do not cover the keyboard with paper or the like.
It may interfere with the heat dissipation, causing a malfunction.
• After using the PC for a long time, you may feel that the PC surfaces are warm. This is
because the PC is designed to dissipate the internal heat from the entire body, including
the keys on the keyboard, once a certain heat level has been exceeded. So it is not
abnormal.
• Depending on the use condition, the bottom surface of the PC may be hot. Do not use
the PC for a long time in a condition where the bottom surface touches part of your body,
e.g., placing it directly on the lap.
• Do not block the air-cooling fan openings, e.g., putting an object in front of them. It may
cause the PC to be damaged.
Critical Points
POST stands for "Power On Self Test" and is a self-diagnosis test performed to ensure that
no abnormality exists in the PC. POST automatically starts after the PC power is switched
on and completes immediately before the operation system starts.
If you switch the PC power off while POST is running, it is detected that POST is terminated
abnormally. The PC counts the number of abnormal POST terminations. If the PC detects
three continuous abnormal POST terminations, it will give you an error message when you
start the PC for the fourth time. Pay attention not to accidentally switch the PC power off
while the PC is performing POST.
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