Adding memory to your notebook computer is an easy way to increase the performance of your notebook computer.     

However the amount and type of memory can influence the performance and stability of the computer.  

1.   Always make sure to use Toshiba approved memory, as non-approved memory modules may cause system instability and/or malfunction.  
2.   The Operating System you are using also has a maximum physical memory limit. For example if you are using a 32-bit version of Windows 7 starter the physical memory limit is 2GB where as the physical limit for 32-bit Windows 7 Home Premium is 4GB.  For a full listing of maximum physical memory limits for all Microsoft Operating System please do a search for "Memory Limits for Windows Releases" (As of this time the URL is: http://msdn.microsoft.com/en-us/library/aa366778(v=vs.85).aspx but the URL may change at any time)      

Adding/Removing Memory Modules from a Toshiba Notebook Computer    
Since the physical memory slot location differs from model to model, please refer to the Online Users Manual under the heading "Memory expansion".  The Online users manual can be downloaded on the Drivers & Download page.  

Note  
*** Some models may require you to take the laptop to an Authorized Service Provider as the memory slot is not user accessible
*** Please contact the Service Provider of your choice prior to taking the unit in as the fee for this service may differ from Service Provider to Service Provider ***