BATCH-B INFORMATION ABOUT MOTHER BOARD GROUP-4
Motherboard
The motherboard is a printed circuit that is the foundation of a computer and allows the CPU ,
RAM , and all other computer hardware components to function with each other. Below is a graphic illustration of the ASUS P5AD2-E motherboard and some basic explanations of each of the major portions of the motherboard. Clicking on the below image will give you a larger more detailed version of the below picture.
Motherboard components
Below is a listing of links that describe each of the above mentioned motherboard components in additional detail. Links are listed in clockwise order going from the top-left corner of the image.
Components not listed above or found on other motherboards are listed in the next section.
 Expansion slots ( PCI Express , PCI , and AGP )
 3-pin case fan connectors
 Back pane connectors
 Heatsink
 4-Pin (P4) power connector
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BATCH-B INFORMATION ABOUT MOTHER BOARD GROUP-4
 Inductor
 Capacitor
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CPU Socket
 Northbridge
Screw hole
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Memory slot
 Super I/O
Floppy connection
 ATA (IDE) disk drive primary connection
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24-pin ATX power Supply connector
 Serial ATA connections
Coin cell battery (CMOS backup battery)
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RAID
 System panel connectors
FWH
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Southbridge
 Serial port connector
USB headers
 Jumpers
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Integrated circuit
 1394 headers
SPDIF
 CD-IN
Other motherboard components
Below is a listing of other motherboard components that are not shown in the above small picture or have been part of older computer motherboards.
 BIOS
 Cache memory
 Chipset
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Diode
 Dip switches
Electrolytic
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Fuse
 Game port and MIDI header
Internal speaker
 LCC
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Network header
 Obsolete expansion slots ( AMR , CNR , EISA , ISA , VESA )
Obsolete memory slots ( SIMM )
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Onboard LED
 Parallel port header
PS/2 header
 Resistor
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BATCH-B INFORMATION ABOUT MOTHER BOARD GROUP-4
 Serial port header
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Screw hole aka mounting hole
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SCSI
 Solenoid
Voltage regulator
Voltage regulator module (VRM)
Motherboard form factors
As computers advanced, so have motherboards. Below is a listing of the various motherboard form factors and additional information about each of these form factors including ATX the most commonly used motherboard form factor today.
 AT
 ATX
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Baby AT
 BTX
DTX
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LPX
 Full AT
Full ATX
 microATX
 NLX
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The different types of slots on motherboard are as follows-:
 CNR SLOT.
 AGP SLOT.
 AMR SLOT.
 PCI SLOT.
 RAM SLOT.
 The accelerated graphics port (AGP) was designed for video cards. The video card is what processes everything that is displayed on your computer monitor.
This port is not on every computer's motherboard but is found from time to time.
This is a horizontal brown slot normally above all the other horizontal slots on the lower left of the motherboard. It is normal to have only one of these slots, but occasionally there may be two.
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BATCH-B INFORMATION ABOUT MOTHER BOARD GROUP-4
 The peripheral component interface (PCI) slot is the main motherboard slot that is used to upgrade computers. This slot is a standard interface for nearly any component you wish to add to your computer. The PCI slots are horizontal, light tan slots at the lower left of the motherboard, normally located below the AGP slot (if your motherboard has one).
 Newer motherboards normally contain one, two or three PCI express slots. They are basically a souped up PCI slot. They can be a number of different colors
(usually a yellow color). The PCI express slots are horizontal slots normally located above the regular PCI slots. A computer will usually contain the PCI express slot or an AGP slot. The newer your computer is, the more likely it is to contain a PCI express slot. These slots are capable of running at a much faster rate than normal PCI slots. Therefore, PCI express slots are usually used primarily for video cards.
CNR SLOTS
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BATCH-B INFORMATION ABOUT MOTHER BOARD GROUP-4

Short for Communication and Network Riser, CNR is a specification that supports audio, modem USB , and Local Area Networking interfaces of core logic chipsets.
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This technology and the CNR slot was first introduced by Intel February 7, 2000 and was mainly developed by leading hardware and software developers who helped release the AMR (Audio
Modem Riser). Today, this slot is no longer found on motherboards.
 The random access memory (RAM) slot on a motherboard is located at the upper right-hand area of the board, when you observe the board as it is mounted in the computer case. These are vertical slots, and there are normally three or four of these. These slots house the RAM sticks that your computer uses to store transient data from the hard drive on its way to the central processing unity
(CPU). Your computer will not function without RAM, so you must have at least one stick of RAM filling one slot.
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