Do not pick up or hold your computer by the display. When
picking up your open computer, hold it by the bottom
(keyboard) half.
Do not modify or tape the latches to keep the display open or
closed.
Do not turn your computer over while the AC Adapter is
plugged in. This could break the adapter plug.
Do not move the computer when the hard disk drive is
accessing data (when the indicator is blinking).
Do not use or store your computer where the temperature is
below 5° C or above 35° C (41° F and 95° F).
Do not place your computer closer than 13 cm (5 in.) from any
electrical appliance that generates a strong magnetic field, such
as a motor, a magnet, a TV, a refrigerator, or large audio
speakers.
Do not put an operating cellular phone on the computer. The
phone might cause a computer system malfunction.
Do not hard-mount your computer in a vehicle or anywhere that
it is subject to strong vibration.
Do not crush, drop, or physically punish the external or
removable hard disk, diskette, or CD-ROM drive when it is
outside your computer.
Do not press on the middle part of the diskette drive or the
CD-ROM drive.
Do not insert a diskette at an angle. Not inserting the diskette
straight into the drive can damage the drive.
Do not place more than one label on a diskette, and do not
allow the label to be loose. Multiple or loose labels can detach
or tear and then lodge in the drive.
Do not touch the lens on the CD-ROM tray.
Do not close the CD-ROM tray until you hear the CD-ROM
click into the center pivot of the CD-ROM drive.
Do not touch the surface of a compact disc; handle the
compact disc only by its edges.
Do not connect the modem to a PBX (private branch exchange)
or other digital telephone extension line. Your computer can
use only a public-switched telephone network (PSTN). Use
of a phone line other than PSTN can damage your modem. If
you are not sure which kind of phone line you are using,
contact your telephone company. Many hotels or office
xviii
IBM ThinkPad 600X User's Reference
