3. Press the pit
1
so that the handle
the handle to remove the cover from the chassis.
Figure 10. Removing the computer cover
Installing or replacing hardware
This section provides instructions on how to install or replace hardware for your computer. You can expand
the capabilities of your computer and maintain your computer by installing or replacing hardware.
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
Notes:
• Depending on your computer model, some of the hardware parts in this section might not be available.
• Use computer parts provided only by Lenovo.
• When installing or replacing an option, use the appropriate instructions in this section along with the
instructions that come with the option.
• In most areas of the world, Lenovo requires the return of the defective CRU. Information about this will
come with the CRU or will come a few days after the CRU arrives.
External options
You can connect external options to your computer, such as external speakers, a printer, or a scanner. For
some external options, you must install additional software in addition to making the physical connection.
When installing an external option, see "Front view" on page 27 and "Rear view" on page 29 to identify the
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P910 Hardware Maintenance Manual
2
is lifted. Then, pivot the handle to the left as shown and pull
2
1