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SDRAM Memory: Computer Memory, Synchronous, PC100, PC133, Desktops And Laptops

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Published: November 21, 2007

The world of computer memory has undergone various stages of advancements in recent years, with many capable of operating at amazing speeds. This is apart from the basic ability of computer memory to easily store large volumes of files.

One such example is SDRAM memory, or Synchronous Dynamic Random Access Memory. The main attraction of SDRAM is its synchronous feature whereby the clock on the CPU makes use of both the input and the output processes of the memory. This feature of SDRAM enables the memory of many computers to process data faster since the SDRAM memory effectively does away with possible time delays.

Actually, SDRAM memory is the more advanced version of the DRAM, commonly known for having a solid state makeup. DRAM, however, is unlike SDRAM in the sense that its interface is not synchronous. Although its computer memory, just like that of SDRAM, is capable of reacting quickly to any sudden changes in input processing.

Meanwhile, SDRAM memory easily boasts of an interface that is totally in-sync. This means SDRAM memory waits for a signal coming from the CPU clock before it reacts to a change in instruction on the control of inputs.

In general, desktops that boast of 512 megabytes of memory will be compatible with SDRAM memory since the computers should ideally be running at speeds of 100 MHz. This is usually the required speed SDRAM. Eight, and in some models, 9-chips will generally need to function effectively. The scenario can also apply in situations when using laptops.

The 8 and 9-chips being referred to means the preferred clock cycle by which SDRAM memory revolves around. However, this is only the minimum, and in some SDRAM memory models, it is not uncommon to encounter memory chips that have 10 and even 12 references.

For the most part, two computer models, namely, PC133 and PC100, have met the specifications needed for SDRAM, since both are capable of running at 100 MHz. The memory chips found in typical PC100 computers are of the 8-chip variety, which is basically similar to that found in SDRAM. This makes PC100 computers highly compatible with SDRAM.

Meanwhile, PC133 has been found to carry 6-chip references, below the minimum memory chip content of SDRAM memory. Some PC133 computers claim to have 7.5 references which could qualify them for a SDRAM upgrade. However, in general, these claims have been found to be untrue. Caution then should be practiced when trying to look for good SDRAM memory, especially since most chips have thus far not been given the appropriate markings to certify authenticity.


Sources:
"Memory Speeds." DEW Associates Corporation. 21 Nov. 2007. http://www.dewassoc.com/performance/memory/memory_ speeds.htm.

"SDRAM." Wikipedia – The Free Encyclopedia. 21 Nov. 2007. http://en.wikipedia.org/wiki/SDRAM.

"What is SDRAM?" Bug Club. Brevard User's Group, Inc. 21 Nov. 2007. http://bugclub.org/beginners/memory/sdram.html.
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