IBM MICRO TOWER 2169 - Manual (Page 8)

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Caution:
When replacing the battery, use only IBM Part Number
36L9077 or an equivalent type battery recommended by the
manufacturer. If your system has a module containing a
lithium battery, replace it only with the same module type
made by the same manufacturer. The battery contains
lithium and can explode if not properly used, handled, or
disposed of.
Do not:
q Throw or immerse into water
q Heat to more than 100°C (212°F)
q Repair or disassemble
Dispose of the battery as required by local ordinances or
regulations.
Caution:
When a CD-ROM drive is installed, note the following.
Use of controls or adjustments or performance of
procedures other than those specified herein might result
in hazardous radiation exposure.
Removing the covers of the CD-ROM drive could result in
exposure to hazardous laser radiation. There are no
serviceable parts inside the CD-ROM drive. Do not remove
the CD-ROM drive covers.