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Hardware lesson 3

10:05 PM By Miss Bee

Power Connections from SMPS to Devices
There are 2 types of SMPS (Switch Mode Power Supply).
1) AT SMPS
2) ATX SMPS

AT SMPS
- Has 6+6=12 pin connector from SMPS to Mother board.
- The power supply connector having written P8 & P9.
- While connecting P8 & P9 connector from SMPS to mother board Black colors wire of P8 & P9 connector's co-inside each other.

ATX SMPS
- Comes with 20 Pin single connector, i.e. P1 connector from SMPS to mother Board.

POWER CONNECTOR

1. AT power connector

-AT motherboards uses the P8 and P9 power connector

-When connecting the P8 and P9 keep the black wire together.

2. ATX Power connector

-ATX motherboard uses P1 power connectors and P4 power connector.

-Latest boards uses (24pin) P1 and P4 Power connector.

3. PATA power connector
Hardware lesson 3

-For PATA drives we need to connect white Molex connector.
-For example PATA hard disk, CD/DVD Drive.

4. SATA power connector
Hardware lesson 3

-For SATA drives we need to connect black Molex connector.

5. Mini Power Connector

-used to supply power to floppy drives.

DATA CABLES

34 Pin Connector
- 34 Pin connector on Mother Board to connect Floppy Disk drive (FDD).
- Through single 34 Pin connector, We can connect two Floppy Disk Drive.
- To connect FDD to Mother Board, We use Flat Ribbon Cable.
Hardware lesson 3

40 Pin Connector (PATA)
- On Mother Board there are two 40 Pin connector to connect Hard Disk(HD), CD-ROM Drive, CD-R/W Drive.
- Through single 40 Pin connector, We can connect 2 devices.

Hardware Lesson 2

1:10 AM By Miss Bee

Motherboards
Motherboards are considered as the backbone of the computer, which provides us with an interface to connect our devices internally and externally.
There are 3 types of mother boards:-
1. AT : Advanced Technology
2. ATX: Advanced Technology Extended
3. BTX: Balance Technology Extended

AT Motherboards: (click picture to see bigger size)

· These are oldest type of motherboards.
· Mainly used in Pentium 1 and Pentium 2 computers.
· They had only one build-in port for the keyboard. (5 pin DIN). All other ports had to be connected separately.
· Not used now a days.

ATX Motherboards: (click picture to see bigger size)
Hardware Lesson 2

· These are currently used types of motherboards.
· It has many built-in ports for mouse, keyboard, USB, Video, audio etc
· It come in 2 sizes :
1) Micro ATX (small)
2) Full ATX (Large) -Large boards have more slots and are more expensive.

BTX Motherboards (click picture to see bigger size)

· These are same as ATX the only difference is that it is designed in a way to reduce heat generated by devices.
· Its slots are placed in a manner to prevent one devices’ heat form affecting other devices. (it is kept little far from each other)

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