SMPS: means Switch Mode Power Supply, they
are Digital inNature.Theystep down voltage
by “switching” it on and off, hence their
name.
SMPS convertsAC VoltagetoDC voltage. All
the computer parts work on DC supply.SMPS
supplies DC voltage through connectors on
Motherboard and various other devices.
As you can see back side of SMPS. FAN is
used to dissipate/reduce the heat generated
in SMPS. In Fig , there are two AC power
sockets. One is for AC 220 V input to SMPS
and the other is for output AC 220 V to your
Monitor/LCD. In some SMPS there is only one
socket for AC 220 V input to SMPS . In this
case the monitor will take input supply
directly from other power source
AT POWER CONNECTOR
ATX POWER CONNECTOR
STANDARD PHERIPHERALS POWER
CONNECTOR
FLOPPY DRIVE POWER CONNECTOR
THIS TYPE OF POWER CONNECTOR HAVE 2
COONECTOR WHICH ONE IS P8 AND
ANOTHER ONE IS P9 USE IN OLD PC.
USES A SINGLE P1 POWER CONNECTOR
THE P1 HAS A NOTCHED CONNETOR TO
ENSURE PROPER INSTALLATION
PRIMARILY USED FOR DEVICES THAT REQUIRE
12V AND 5V OF POWER
A MOLEX CONNECTOR USES “CHAMFERS”
(NOTCHES) FOR EASY INSTALLATION
INSTALLING A MOLEX BACKWARDS CAN
DESTORY THE DEVICES INTO WHICH THE
MOLEX INTO CONNECTED.
PRIMARILY FOR 3.5-INCH FLOPPY DRIVES
CARE SHOULD BE TAKEN WHEN INSTALLING
MINI CONNECTORS (BERG CONNECTORS).
OCCASIONALLY, THERE ARE NOT ENOUGH
CONNECTORS TO POWER ALL THE DEVICES
INSIDE A PC
SPLITTERS ARE USED TO CREATE MORE
CONNECTIONS
MANY MOTHERBOARD REQUIRE A SECOND,
FOUR-WIRE CONNECTOR TO PUSH MORE 12 -
VOLT POWER INTO THE BOARD