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As noted in the introduction, there''s a virtual alphabet soup of memory types: SDRAM, EDO, FPM, SIMM, and DIMM. It certainly can create a great deal of confusion. RAM itself stands for "random access memory," meaning the CPU can access any memory address without reading all addresses before it. (ROM—read only memory—is random access, too, but you can''t write to it). It gets worse, because memory comes in different speeds, and some types don''t work in some systems. Here''s the rundown on the three memory types used in today''s systems.... SDRAM. Synchronous DRAM SDRAM''s speed is typically measured in MHz (for example, 100MHz), although you do see references to 10ns SDRAM ("ns" stands for nanosecond or one billionth of a second). SDRAM for PCs comes in DIMMs. These refer to SDRAM DIMMs rated at different memory bus speeds. For any CPU running at a 100MHz bus speed you should get SDRAM. Some future motherboards will support SDRAM. Although there''s a price premium, SDRAM will run in a PC100 system.

Where do you get your RAM? 4 All Memory.Com is your source for high-quality computer memory. We buy direct from major manufacturers and because we don''t pay a middleman we can offer our memory at great prices. 4 All Memory.Com carries Micron, Toshiba, Siemens, Kingston, Viking, PQI, and many other major manufacturers. We offer over 55,000 upgrades for more than 12,000 different computer systems. All of our memory is guaranteed 100% compatible with your system. We offer a lifetime warranty and we stand behind our products, period! Can I really install memory myself? The idea of opening up a computer''s case and fiddling around with its components might cause a beginning user to cringe, but this is one of the easiest upgrades you can do. You just have to turn the system off, ground yourself, open the case, and install the new RAM. You can go to our installation guide for more detailed instructions. Just click on the Help tab and then the link for "Installation Guides" Will memory from 4 All Memory.Com work with memory from another manufacturer? Yes. You can mix and match modules from different manufacturers. Keep in mind that you should always install the largest module in the lowest numbered slot.

Today''s software has become more rapacious than ever—not just wanting faster processors, but faster graphics and more RAM. Layer these software programs on top of itself a memory-hungry operating system, and it becomes clear that more memory is better—up to a point. The good news is that memory is cheaper than ever, though the precipitous plummet in prices seems to have leveled off a bit lately. But the memory landscape is much more confusing than even a couple of years ago. The acronyms have evolved into a veritable alphabet soup of memory types: EDO, BEDO, SDRAM, FP, RAMBUS. Each new motherboard chipset that finds its way into your computer seems to want a different type of memory. Well, we''re here to help you sort through the memory types and walk you through the process of installation. This is a tough question. However, there are a couple of rules of thumb. First, know thy motherboard. You must be aware of what chipset you have in your system. It turns out that adding too much memory can actually slow down your computer. The reason for this is the L2 cache. Cache Level 1 and Level 2