To think about  expanding your memory you want to know what you have.
To check to see what your machine has registered GO TO:
From your Main Menu   CONTROL PANEL AND CLICK THE SYSTEM ICOPN AT THE BOTTOM.
Wait for it to load and at the bottom you will see how much RAM you have in the machine.


If you want to test your memory ( RAM) and your system does not have a utility for that try this program

Memtest Version 3.2

Works in Windows 9x, 2000, XP, Vista

http://hcidesign.com/memtest/

MemTest is a RAM reliability tester that runs under Windows. It
evaluates the ability of your computer's memory to store and
retrieve data accurately.  A correctly functioning computer should
be able to do both these tasks with 100% accuracy day in and day
out. A computer that fails these tests, perhaps because of old
hardware, damaged hardware, or poorly configured hardware, will be
less stable and crash more often. Even worse, it will become even
less stable over time as corrupted data is written to your hard
disk.

By running MemTest you can ensure that your computer's RAM is
correctly functioning. It is wise to test this when you buy a new
computer, install new RAM, or change the configuration of your
machine (for instance, to overclock it).  Are you the sort of user
who likes to push the performance of your machine to the edge?
Relying upon whether your machine will boot after your new BIOS
tweaks is a poor way to determine the safety of your new settings.
Use MemTest as a true test of stability.

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Cal-Pac provides the most complete repair services for  computers and all IT equipment in Ventura County either at your site or bring it in.  Our rates are the most reasonable anywhere . All work guaranteed.  YES WE CAN UPGRADE THE RAM ( MEMORY) IN YOUR MACHINE(S)
Gary Orthuber
Cal-Pac Technology
300 Montgomery Ave. Oxnard CA. 93036 ( El Rio)
(805)988-9540
http://www.calpactech.com/
E Mail:  nccorthu @sbcglobal.net