Lenovo System x3250 M4 Installation And Service Manual page 45

• You have removed the blue optical drive rails from the side of the old drive and have them available for
installation on the new drive.
Note: If you are installing a 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:
• 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.
• 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.
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
`
Appareil A Laser de Classe 1
To install an optional DVD drive, complete the following steps:
1. Read the safety information in "Safety" on page v and "Installation guidelines" on page 33.
2. Follow the instructions that come with the drive to set jumpers or switches, if there are any.
Note: You might find it easier to install the new drive from the front and then attach the cables.
3. Turn off the server and all peripheral devices; then, disconnect the power cords and all external cables.
4. Remove the cover (see "Removing the cover" on page 35).
5. Remove the DVD drive filler if it is installed. Pull the release tab (the rear of the drive-retention clip)
toward the right side of the server to release the clip; then, while you pull the tab, push the DVD drive
filler out of the bay. Save the DVD drive filler for future use.
.
Chapter 2 Installing optional devices
31