Locating Internal Drives; Handling Static-Sensitive Devices - Lenovo ThinkCentre M77 Hardware Maintenance Manual

Locating internal drives

Internal drives are devices that your computer uses to read and store data. You can add drives to your
computer to increase storage capacity and enable your computer to read other types of media. Internal
drives are installed in bays. In this manual, the bays are referred to as bay 1, bay 2, and so on.
When installing or replacing an internal drive, it is important to note the type and size of the drive that you
can install or replace in each bay and correctly connect the cables to the drive installed. Refer to the
appropriate section in "Installing or replacing hardware" on page 79 for instructions on how to install or
replace internal drives for your computer.
Figure 5 "Drive bay locations" on page 78 shows the locations of the drive bays.
Figure 5. Drive bay locations
1
Bay 1 - Optical drive bay (with an optical drive installed in some models)
2
Bay 2 - Optical drive bay
3
Bay 3 - Card reader drive bay
4
Bay 4 - Secondary SATA hard disk drive bay
5
Bay 5 - Primary SATA hard disk drive bay (with a 3.5-inch SATA hard disk drive installed)

Handling static-sensitive devices

Do not open the static-protective package containing the new part until the defective part has been removed
from the computer and you are ready to install the new part. Static electricity, although harmless to you, can
seriously damage computer components and parts.
When you handle computer parts and components, take these precautions to avoid static-electricity damage:
• Limit your movement. Movement can cause static electricity to build up around you.
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ThinkCentre Hardware Maintenance Manual