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en.wikipedia.org/wiki/DIMM

A DIMM or dual in-line memory module comprises a series of dynamic random- access memory ... have a 32-bit data path, while standard DIMMs have a 64-bit data path. ... On the bottom edge of 168-pin DIMMs there are two notches, and the ... chips per side; "×4" and "×8" refer to the data width of the DRAM chips in bits.

www.oempcworld.com/support/dimm.html

Aug 22, 2014 ... Another difference is that standard SIMMs have a 32-bit data path, while standard ... Two types of DIMMs: a 168-pin SDRAM module (top) and a 184-pin DDR ... “x4 ” or “x8” refer to the data width of the DRAM chips in bits.

www.simmtester.com/page/news/showpubnews.asp?num=109

Oct 5, 2004 ... Each 240-pin DIMM provides a 64-bit data path (72-bit for ECC or registered ... DDR2 memory modules have basically the same dimensions as the DDR ... While 240-pin DDR2 DIMMs, 184-pin DDR DIMMs and 168-pin ...

www.dcc.ufrj.br/~gabriel/microarq/umg.pdf

Once the data is loaded into memory, the CPU is able to access it much ..... The width and curvature of these traces as well as the distance between them affect both the ..... computers today use 168-pin DIMMs, which support 64-bit data paths .

www.answers.com/Q/How_wide_is_the_data_path_for_a_168-pin_DIMM

DIMMs have a 64-bit data path. ... A SDRAM DIMM has 168 Pins : A DDR DIMM has 184 Pins : A SIMM has 30 or ... The path width of a tornado can vary greatly.

www.pctechguide.com/computer-memory/ram-or-main-memory-pc-computer-memory-dimm-dram-sdram

Exploring RAM, the computer's main memory component, including data bus, ... The Pentium processor – introduced in 1993 – increased the data bus width to ... computers were using 168-pin DIMMs, which supported 64-bit data paths.

www.computermemoryupgrade.net/faqs-on-memory.html

Each DDR2 240-pin DIMM provides a 64-bit data path (72-bit for ECC or ... the same dimensions as the DDR modules, but have different pin configurations, ... While 240-pin DDR2 DIMMs, 184-pin DDR DIMMs and 168-pin DIMMs are ...

www.micromac.com/online_resources/glossary.html

Mar 16, 1999 ... The data path width, here 16-bits, refers to the number of bits that are ... A single 168-pin DIMM module implements a 64-bit data path.

www.informit.com/articles/article.aspx?p=1416688&seqNum=2

Jan 6, 2010 ... Starting in early 2001, double data rate (DDR) SDRAM memory of 200MHz and 266MHz become popular. ..... JEDEC Standard SDRAM Module (168-pin DIMM) Speeds and Transfer Rates ... Bus Width (Bytes) ..... The RDRAM memory bus is a continuous path through each device and module on the bus, ...

www.definitions.net/definition/DIMM

Since Intel's Pentium many processors have a 64-bit bus width, requiring SIMMs installed in matched pairs in order to populate the data bus. ... The most common types of DIMMs are: ⁕72-pin SO-DIMM, used for FPM ... for SDR SDRAM ⁕168- pin DIMM, used for SDR SDRAM ⁕172-pin MicroDIMM, used for DDR SDRAM ...