Which Bus Speed Is Associated With PC-3200 RAM?
PC-3200 is a form of double data rate SDRAM that runs at a bus speed of 200 MHz. Because DDR-SDRAM transfers data on the rising and falling edges of each clock signal, its effective bus speed is 400 MHz. For this reason, PC-3200 DDR-SDRAM is also known as DDR-400 SDRAM.
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Compatibility
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You can install PC-3200 memory in any computer that supports DDR-SDRAM, even if the computer is designed for a lower speed of DDR-SDRAM, such as PC-2700. When used at a bus speed under 200 MHz, PC-3200 memory lowers its speed to match that of the system. You can find PC-3200 memory in computers with processors such as the Intel Pentium 4, Pentium M, AMD Athlon XP and Athlon 64.
Identification
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You cannot use PC-3200 memory in a computer that requires another type of memory such as SDRAM, DDR2-SDRAM or DDR3-SDRAM. Save yourself an unnecessary expense by checking the type of memory in your computer before purchasing new memory modules. In Windows 7, identify the amount of memory installed in your computer by right-clicking "Computer" on the Start menu and selecting "Properties." You can also identify the type of memory using a utility such as SpeedFan, AIDA64 or CPU-Z.
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Installing
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If you own a desktop computer, install PC-3200 SDRAM by opening the computer chassis, locating an empty memory slot and extending the levers on both sides. Place the memory module over the slot and push straight down until the levers lock it in place. On a notebook computer, install PC-3200 SDRAM by placing the memory in the slot at an angle and pushing down until the clips click. Perform all memory upgrades with the computer turned off and disconnected from a power source.
Performance
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PC-3200 DDR-SDRAM is named according to its maximum transfer rate: 3.2GB per second. It is the fastest DDR-SDRAM memory type; other types include PC-2700, PC-2100 and PC-1600. In the mid-2000s, the newer DDR2-SDRAM and DDR3-SDRAM technologies replaced DDR-SDRAM in most computers.
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