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 RAM comes in many different kinds of configurations and types-and runs at many different speeds, as well. Before you upgrade, you need to know how to spot the different types. Pictured in these steps are the different types of RAM, including the older-style DIPs and newer SIMMs and DIMMs. Step 1: Dual Inline Packages (DIPs) If you have an older computer, it might use an older kind of memory called a dual inline package (DIP). DIPs plug directly into their own sockets on the motherboard. It''s difficult to find DIPs today because they''re old. They come in pairs or sets of eight. Step 2: Single Inline Memory Modules SIMMs (Single Inline Memory Modules) plug into long, matching sockets on your motherboard. SIMMs have more capacity than DIPs. Typically, a motherboard has several banks of SIMM sockets into which you plug SIMMs. SIMMs come in 30-pin and 72-pin 168pindimm formats. 168pindimm 30-pin SIMMs usually have less capacity than 72-pin, and often come with capacities of 256K, 1MB, 2MB, and 4MB. 72-pin SIMMs come in 1MB, 2MB, 4MB, 8MB, 16MB, and 32MB. Step 3: Dual Inline Memory Modules As noted in the introduction, there''s a virtual alphabet soup of memory types: SDRAM, EDO, FPM, SIMM, 168pindimm and DIMM. It certainly can create a great deal of confusion. RAM itself stands for "random access 168pindimm 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, 168pindimm because memory comes in different speeds, and some types don''t work in some systems. 168pindimm 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. What is PC-100 memory? Simply put, PC100 is a faster main memory bus, transferring data at 100MHz. Up to now, the fastest common PC bus speed has been 66MHz, so PC100 represents about a 50% theoretical improvement 168pindimm in speed. Tests have shown a typical speed increase of over 20%. Do I need to remove the stickers that are on the chips of my new DIMM? 168pindimm DO NOT remove any stickers from the modules. Removing these stickers will void the warranty. The main sticker is the bar code sticker which has the serial number under the bar code. This bar code number gives us all 168pindimm of the information about the modules that we require for warranty replacement and information, as well as allowing us to determine which module you have and what its characteristics are. These stickers will not have any affect on performance nor will they be affected by the 168pindimm heat inside the system. What is VRAM? VRAM is an acronym for Video Random Access Memory. Video memory is DRAM (Dynamic Random Access Memory) with an on-board serial register/serial access memory. It is designed for video applications. Would you like to find ddr, simm or dimm memory but aren't sure where to look? Search no further. We have any type of memory for any computer you have. Shop our pages and purchase everything you need online!
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