3. Press the pit
1
on the handle of the computer cover latch so that the handle is lifted. Pivot the handle as
shown and pull the handle to remove the cover from the chassis.
Figure 11. Removing the computer cover
Notes:
• Depending on your computer model, some of the hardware parts in the installing or replacing 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.
Removing and installing hardware
This section provides instructions on how to remove and install hardware for your computer. You can expand
the capabilities of your computer and maintain your computer by removing or installing 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.
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 "Hardware locations" on page 29 to identify the required connector.
104
P720 Hardware Maintenance Manual