Fujitsu LifeBook S6420, Легкое руководство

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Removing and installing components during servicing
Removing and installing memory modules
Mainmemory Memoryexpansion Memoryupgrade Systemexpansion
The notebook will not start without memory modules, as no fi xed RAM is installed.
Your notebook supports dual channel technology if two DDR3 memory modules
are installed. Fujitsu Technology Solutions recommends installing two identical
memory modules in order to achieve the best system performance.
With a memory con fi guration of 4 GBytes, the visible and usable main memory
may be reduced to 3 GBytes (depending on notebook con fi guration).
If you are asked by the Hotline/Help Desk to remove and install the memory
modules yourself, proceed as follows:
Pay attention to the relevant safety notes provided in the "Important notes" chapter.
The notebook must be switched off when installing/removing the memory
modules, it must not be in Suspend mode.
Only use approved memory expansion modules in your notebook
(see Section
"Technical data", Page 29 ).
Never use force when installing or removing memory modules.
Make sure that foreign objects do not fall into the memory expansion compartment.
Individual components (e.g. the processor heat sink) can become very hot
during operation. Therefore, we recommend that you wait one hour after
switching off the notebook before removing or installing the memory modules.
Otherwise, there is a risk of suffering burns!
As some non-ESD safe components are exposed, please observe the section "Notes
on installing and removing boards and components", Page 25
.
► Switch your notebook off and unplug the mains adapter from the mains outlet.
► Close the LCD screen so that it locks into place.
► Disconnect all cables connected to the notebook.
► Turn your notebook over and place it on a stable, fl at and clean surface. If necessary, lay
an anti-slip cloth on this surface to prevent the notebook from being scratched.
► Remove the battery (see "Removing the battery", Page 16 ).
26 A26391-K273-Z220-1-7619, edition 1