IBM System x3300 M4 Installation And Service Manual page 369

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.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the beam.
2. Read the safety information that begins in Safety and "Installation guidelines"
on page 36.
3. Turn off the server (see "Turning off the server" on page 24) and all attached
peripheral devices. Disconnect all power cords; then, disconnect all external
cables from the server.
4. Unlock and remove the left-side cover (see "Removing the left-side cover" on
page 39)
5. Open the bezel (see "Removing the bezel" on page 331)
6. Disconnect power and signal cables to the drive and the connectors on the
system board (see "Internal Cable Routing and Connectors" on page 47).
7. Remove the air baffle if installed (see "Removing the air baffle" on page 41)
8. Remove the fan assembly (see "Removing the fan assembly" on page 42)
9. Pressing the drive rail on the side of the DVD drive and grasp the front of
DVD drive out of the server.
Chapter 6. Removing and replacing components
351