IBM System x3550 M4 Installation And Service Manual page 246

Figure 128. DVD drive filler panel removal
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IBM System x3550 M4 Type 7914: Installation and Service Guide
3. Remove the cover (see "Removing the cover" on page 36).
4. Remove the DVD drive filler panel if it is installed. Locate the blue release tab
on the rear of the DVD drive filler panel; then, while you press the tab, push
the DVD drive filler panel out of the drive bay.
5. Remove the retention clip from the side of the DVD drive filler panel. Save
the DVD drive filler panel for future use.
Note: If you are installing an optical drive that contains a laser, observe the
following safety precautions.
Statement 3
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices,
or transmitters) are installed, note the following:
v Do not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable
parts inside the device.
v Use of controls or adjustments or performance of procedures other than
those specified herein might result in hazardous radiation exposure.