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How do you know it''s time for a memory upgrade? There are several signs indicating it may be time to upgrade your memory. If you see your mouse pointer turn into an hourglass for significant periods of time, if you hear your hard drive working, or if your computer seems to work more slowly than you expect, the reason is probably insufficient memory. When the memory is full, your system transfers data to the hard drive. This is called swapping. Since the hard drive is considerably slower than DRAM, your system seems slower altogether. don''t know the model number of my computer, how can I get the right RAM? Please provide the following information in order to determine what memory you need. You can send it in an email to support@4allmemory.com. How many memory slots do you have? (It will generally be 2, 3 or 4) How many sticks of memory do you have in it now? How much memory is currently installed? (i.e. 16MB, 32MB etc..) What is the length of one stick of memory? (It will generally Please provide all of the numbers off of any stickers on a piece of memory. Look at one of the little black chips on the memory stick and provide all of the numbers off of one chip. (it is generally easier to read the chip numbers if you hold it under a bright light)

What is Buffered Memory? Buffered memory uses a Buffer chip to boost the clock signal sent across the memory module so that the clock signal is seen as a clean, sharp signal across the entire module. It eliminates chances of memory errors in data sent or retrieved from memory. It is commonly used in larger capacity Fast Page Mode or EDO modules. Buffered modules have a different keyway in the contact edge and can only be used when the board supports Buffered modules. Unlike Registered modules, it is not interchangeable with Unbuffered modules. Can I mix different speeds? PC600, PC700, and PC800 are three different speeds of memory once available for RDRAM (Rambus dynamic random access memory) modules. Of the three, PC800 modules are the fastest, and PC600 modules are the slowest. (PC600 and PC700 are no longer being produced by any manufacturer)