The physical format in which RAM modules appear is called DIMM – Double In-Line Memory Module. Prominent options include DDR4-1,600, DDR4-2,400, or DDR4-3,200, with a couple of other speed variations in between with increments of approximately 266 MT/s. When purchasing RAM, you can notice these speeds designated in the module’s name. Since recent memories are quite fast, a standard unit is one million transfers per second, or mega-transfers per second (MT/s).ĭDR4 memory modules start at 1,600 MT/s and go all the way up to 3,200 MT/s for the latest generation. One more thing to notice when talking about RAM is the memory’s operating frequency measured in transfers per second. These memory modules worked almost at half the speed of comparable DDR modules. That’s why computers can take advantage of ample space you have on your hard disk drives, whether it’s a standard HDD or a much faster SDD.īefore 2000, when first DDR modules appeared (basically DDR1, although they’re called just DDR), computers used “Single Data Rate” (SDR) modules, commonly known as SDRAM. Sometimes, your installed RAM may not be sufficient for the task at hand. This way, your computer would tell you that it lacks RAM and that it can’t boot up. Several beeps coming out of your computer case would accompany it. If you’ve experienced a faulty RAM module or a bad connection on the motherboard’s RAM slots, the corresponding error would appear on the screen. If you powered up a computer without RAM, it wouldn’t move past the POST screen (Power-On Self-Test). Although there are theoretical ways to make a computer work without RAM, in practice, you wouldn’t have much use of such a construct at all. RAM Is Essential for Your ComputerĮver since computers appeared, they needed some sort of RAM to operate. Without a CPU, a motherboard, and RAM, your computer is practically non-existing. That place is commonly known as random access memory or RAM. It also requires a place to store the results of its work. CPU, in turn, needs to lay down all the information it needs to process somewhere.
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