2. parts of mother board
TRANSCRIPT
Microprocessor socket
Southbridgechipset
Northbridge
CMOS Battery
Memory slots
ROM Chip
Expansion slots
ATX PowerConnector
IDE Socket
FDD Socket
AGP Slot
System Panel Connector
Parts of Motherboard
ROM chip- The chip or IC which contains and stores critical
programs such as the program that boots the computer and BIOS.
Parts of Motherboard
Pronounced rahm, acronym for read-only memory, computer memory on which data has been prerecorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read.
Unlike main memory (RAM), ROM retains its contents even when the computer is turned off. ROM is referred to as being nonvolatile, whereas RAM is volatile.
Most personal computers contain a small amount of ROM that stores critical programs such as the program that boots the computer. In addition, ROMs are used extensively in calculators and peripheral devices such as laser printers, whose fonts are often stored in ROMs.
ROM
• AGP Slot- Accelerated Graphics Port supports 1.5 V- Slot refers to a unit of space in a motherboard that supports AGP cards and it yields a throughput rate of 266 MBps.
Parts of Motherboard
• Expansion Slot (PCI or ISA)- A socket on the motherboard that accepts an expansion card. * PCI – Peripheral Component Interconnect is a high-speed connection for devices including modems, sound cards, LAN cards etc. It can run at clock speeds of 33 or 66 MHz. At 32 bits and 33 MHz, it yields a throughput rate of 133 MBps. Parts of Motherboard
• FDD Connector/Socket- A socket for Floppy Disk Drive cable connector or interface. Parts of Motherboard
Southbridge - is the chip that controls all of the computers I/O functions, such as USB,
audio, serial, the system BIOS, the ISA bus, the interrupt controller and the IDE channels. In other words, all of the functions of a processor except memory, PCI and AGP. They do not normally come with a heat sink.
Parts of Motherboard
Southbridgechipset
Northbridge - a Chip that connects to a CPU to memory, the PCI bus, Level 2 cache and
AGP activities. The Northbridge chips communicate with the CPU through the FSB.
Parts of Motherboard
Northbridge
• System Panel Connector- This connector accommodates several front panel functions
a. System Power LEDb. HDD Activityc. ATX Power Switchd. Reset Switch
Parts of Motherboard
IDE Connector Socket (Intelligent Drive Electronics or Integrated Drive Electronics) - A socket for IDE Cable connector/interface
IDE Socket
Parts of Motherboard
ATX Power Connector Socket- A socket for the ATX Power Supply Cable Connector.
Parts of Motherboard
Parts of Motherboard
AT Power Connector Socket
• Microprocessor Socket- is the connector that interfaces between a computer's motherboard and the processor itself. Earlier CPU sockets and processors are built around the Pin Grid Array (PGA) architecture, in which the pins on the underside of the processor are inserted into the socket, usually with zero insertion force (ZIF) to aid installation. Today, most of the sockets used are built with Land Grid Array (LGA) architecture. Processors used in this architecture are sometimes termed as Pin less. Parts of Motherboard
Socket 2 Socket 478Socket 370 Socket LGA775 Slot mount
Memory Slots- Slots for the memory modules (RAM) also called
memory banks
Parts of Motherboard
• CMOS Battery- CMOS & Clock Backup batteries perform the same function in desktop and laptop computers: when the computer is turned off, the battery maintains the time and date, thus insuring their accuracy when the system is once again restarted. More importantly, the battery saves the computers BIOS setup configuration, which allows the system to efficiently reboot once it is restarted. Parts of Motherboard
Com portSerial port
p/s 2 Keyboardport
Mouseport
Parallel portprinter Blue – line in
Pink – micLime – line out
Firewire interfaceUSB interface LAN port
Parts of MotherboardRear Panel I/O
Good LuckSafety Precaution
T h a n k Y o u
Follow these safety precaution when installing motherboard
• Wear a grounding strap attached to a grounded device to avoid damage from static electricity
• Discharge static electricity by touching the metal of a safely grounded object before working on the motherboard.
• Leave the components in the static proof bags they came in.
• Hold all circuit boards by the edges.