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Removing and installing memory modules
Mainmemory
System expansion
Memoryupgrade
Memoryexpansion
The installation and removal of memory modules in one of the two slots
should only be carried out by an authorised technician.
The notebook will not start without memory modules, as no fixed RAM is installed.
Your notebook supports dual channel DDR3 technology.
The dual channel DDR3 technology can only be used with two identical memory
modules. When two different memory modules are installed, only "single channel"
mode is supported. This reduces the performance of your notebook.
With a memory configuration of 4 GBytes, the visible and usable
main memory may be reduced to 3 GBytes (depending on notebook
configuration and the operating system used).
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
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
on installing and removing boards and components", Page
► Switch your notebook off and unplug the mains adapter from the mains outlet.
► Close the LCD screen.
► Disconnect all cables connected to the notebook.
► Turn your notebook over and place it on a stable, flat and clean surface. If necessary, lay
an anti-slip cloth on this surface to prevent the notebook from being scratched.
► Remove the battery (see
A26391-K212-Z220-1-7619, edition 1
Removing and installing components during servicing
"Technical data", Page
"Removing the battery", Page
26).
15).
"Notes
22.
23