Dell Inspiron 1720 (Mid 2007) - Manual (Page 153)

Adding and Replacing Parts
153
NOTICE:
If the cover is difficult to close, remove the module and reinstall it. Forcing
the cover to close may damage your computer.
3 Replace the memory module cover.
4 Insert the battery into the battery bay, or connect the AC adapter to your
computer and an electrical outlet.
5 Turn on the computer.
As the computer boots, it detects the additional memory and automatically
updates the system configuration information.
To confirm the amount of memory installed in the computer, click Start
→ Help and Support→ Dell System Information.
Subscriber Identity Module
Subscriber Identity Modules (SIM) identify users uniquely through an
International Mobile Subscriber Identity.
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
NOTE:
Only Cingular and Vodafone need a SIM. Verizon, Sprint, and Telus do not
use SIMs.
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