Fujitsu Siemens Computers ESPRIMO P, Operating Manual, Page: 61 / 68

System expansions
4
3
► Fasten the knurled screws (3) on the side of the power supply.
► Fasten the knurled screws (4) on the rear of the chasing.
► Reinstall the fan casing if necessary (see "Installing the fan").
► Close the casing (see "Closing the casing").
Making changes on mainboard
► Open the casing (see "Opening the casing").
► Remove the power supply (see "Removing the power supply").
Upgrading main memory
► Upgrade the memory as it is described in the manual for the mainboard.
Replacing the processor
► Replace the processor as it is described in the manual for the mainboard.
Replacing lithium battery
In order to permanently save the system information, a lithium battery is installed to provide the
CMOS-memory with a current. A corresponding error message notifies the user when the charge is
too low or the battery is empty. The lithium battery must then be replaced.
!
Incorrect replacement of the lithium battery may lead to a risk of explosion!
The lithium battery may be replaced only with an identical battery or with a type
recommended by the manufacturer.
Do not throw lithium batteries into the household waste. It must be disposed of in
accordance with local regulations concerning special waste.
Make sure that you insert the battery the right way round: The plus pole must be on the
top!
The lithium battery holder exists in different designs that function in the same way.
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