Specifications
Computer Architecture and Maintenance (G-Scheme-2014)
These dimensions are given only to help identify the type of motherboard currently in 
a computer. These motherboard standards not only affect the size of the motherboard, 
but   also   the   configuration   of   the   various   connectors.   Attempting   to   put   an   ITX 
motherboard into a computer case which previously housed an ATX motherboard can 
cause serious problems, as the card slots and connectors will not line up properly.
Memory Type
If one is replacing an existing motherboard and wants to reuse the existing memory 
modules,   it  is  important  to   verify  that  the   memory  modules  will  fit   into  the  new 
motherboard. Most modern computers use either DDR 2 orDDR 3 memory, with some 
of the older ones still using DDR (sometimes referred to as DDR1). Most will have four 
memory   slots,   configured   in   two   banks   of   two   slots.   The   other   consideration   for 
memory is speed. Not all motherboards and memory modules have the same speed.
Chipset
The   chipset   configures   the   motherboard   and   controls   how   the   computer’s   CPU 
communicates  with  the rest  of the computer.  It  also  controls the bus speed of  the 
motherboard; as such, it is vitally important. Chipsets will be rated by the speed at 
which they operate. Choosing a high-speed chipset allows faster memory to be used, 
and generally helps the computer run faster.
Please note that chipsets are not replaceable, but instead are a permanent part of the 
motherboard.
Besides features, the chipset also controls what features the motherboard has. Things 
like RAID control, surround sound, and support for USB 3 are all controlled by the 
chipset. The features of a motherboard will normally be listed,  rather than specific 
information about the chipset.
Other Features and Options to Consider
While the four areas listed above are the major deciding factors when choosing any 
motherboard,  especially  to   eliminate   a   motherboard  from   the  running,   there   are   a 
number of other features which can make the difference between one motherboard and 
another.
PCI Slots
The number and type of PCI extension card slots a motherboard has will affect the 
user’s ability to add expansion cards. If the application for that computer requires a lot 
of expansion cards, then a motherboard needs to be selected which has room for them. 
As a general rule of thumb, the larger motherboard formats also have more expansion 
slots.
Prepared By – Prof. Manoj.kavedia (9860174297 – 9324258878 ) (www.kavediasir.yolasite.com)
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