T4500C - laptop batteries memory

For example, you can add PC800 modules to a system that was designed for modules, but the memory will run at the speed. How much memory do I need? Ask us and we will tell you every ounce and then a megabyte to spare. The answer really depends on how much and for what your system is used. Upgrading is easy and cost effective. RAM is used every time you open an application, download, play a game or simply turn on your computer. Additionally if you work with or plan to work with digital audio and video more ram is a necessity. The amount of memory you need depends upon how you use your computer. Most applications recommend a minimum of 64MB, and most users desire more than the minimum requirement. Novice User / Administrative If you use your computer to send and receive email, do a little word processing, and are starting to surf the Web, you can get by with 64MB. However, you would benefit from going to at least 128MB of memory. Basic User / Student If you are spending more time surfing the internet, sending and receiving email, and doing word processing along with other applications, you can get by with 128MB, but would benefit from going to 256MB.

There are two types of cache in your computer: level 1 and level 2. The level 1 cache (also known as L1 cache) is inside the CPU itself, and you really have no control over quantity and speed. The level 2 cache (also known as L2 cache) are all external to the chip. The L2 cache on the nside the CPU package (though still external to the CPU chip itself). Those systems run on motherboards with a variety of core logic chipsets. However, some of them are designed so that the L2 cache only works with the first 64MB of RAM in your system. The two main culprits are the chipsets—two of the most common chipsets available. Now, 64MB is a lot of RAM, so it''s not like your system is somehow crippled (at least, not for gaming). But you should be aware that in the case of boards using these chipsets, more is not necessarily better. motherboards with the chipset probably can cache up to 512KB of RAM, but a few motherboard makers cheaped out and left out a critical TAG RAM chip and—you guessed it—those boards can only cache the first 64MB or RAM. To my knowledge, boards that use the can cache more than 64MB, but be wary.

Different Speeds of Memory The faster the memory, the faster a computer operates. Memory comes rated at different speeds, and the faster the memory, the more it costs. Memory speed is measured in nanoseconds, and the lower the nanosecond rating, the faster the memory. For example, a 60 nanosecond chip is faster than an 80 nanosecond chip. Be sure that the memory you buy is as fast as the memory you''re replacing. Many newer, faster Pentiums come with RAM that can run at 100Mhz-the speed of the system bus. It’s always a good time to add random- access memory (RAM) to your computer. That’s because RAM is easy to install and can improve the performance of even the weakest computer. A couple of years ago, the average computer contained four megabytes (MB) of RAM. Now the standard is up to 16MB, with many new computers sporting 24MB or more. And users who play computer games or work with desktop publishing programs might have as much as 128MB of RAM.