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Showing posts with the label ATX

HARD DISK NOT DETECTED ERROR OR WHAT?

 HARD DISK  NOT DETECTED ERROR OR WHAT? FRIENDS TODAY I AM GOING TO TELL YOU SOMETHING ABOUT AN ERROR THAT OCCURS MOSTLY IN COMPUTERS, THAT IS HARD DISK NOT DETECTED.   SO LET’S BEGIN. THERE ARE THREE ACTION YOU NEED TO TAKE TO THIS PROBLEM SO LET’S BEGIN. STEP 1   CHECK WHETHER THE POWER CABLE AND DATA CABLE OF THE HARD DISK IS PROPERLY ATTACHED OR NOT.  YOU CAN ALSO CHANGE THE PATA AND SATA DATACABLE.   STEP2 CHECK THE SMPS (SWITCH MODE POWER SUPPLY) YELLOW AND RED WIRE VOLTAGE LEVEL.  IF THE VOLTAGE LEVEL IS IMPROPER REPLACE THE SMPS. STEP3 ATTACH THE HARD DISK TO ANOTHER MACHINE.  CHECK IF IT IS DETECTED OR NOT IF THE HARD DISK IS DETECTED IN THE SECOND MACHINE, REPAIR THE MOTHERBOARD.  IF THE HARD DISK IS NOT DETECTED IN SECOND MACHINE REPAIR OR REPLACE THE HARD DISK.

WHAT TO DO WHEN A COMPUTER FREQUENTLY RESTARTS?

  COMPUTER FREQUENTLY RESTARTS WHAT TO DO WHEN COMPUTER FREQUENTLY RESTARTS.  WHAT ARE THE REASONS FOR ITS PERFORMANCE DEGRADATION?  LET US SEE! CAUSE NO 1 CPU OVERHEAT SOLUTION --> CHECK THE CPU TEMPERATURE FROM BIOS.  IF THE CPU TEMPERATURE IS HIGH, EJECT THE CPU FAN AND CLEAN IT PROPERLY WITH COMPRESSED AIR AND BRUSH.   APPLY THE RIGHT COOLING PASTE WITH A PIECE OF CLOTH. NOW APPLY GOOD QUALITY COOLING PASTE WITH A THERMAL COMPOUND OVER THE PROCESSOR.  ATTACH THE HEAT SINK AND FAN AND CHECK THE TEMPERATURE AGAIN.  IF THE CPU FAN SPEED IS LOW AFTER CLEANING , CLEAN THE FAN WITH ISOPROPHYL ALCOHOL, DIESEL AND WHITE PETROL. NOW ATTACH THE FAN AGAIN CHECK THE FAN SPEED IF IT IS SAME AS BEFORE REPLACE THE FAN. CAUSE NO 2 VIRUS --> IF THE PROBLEM IS RELATED TO VIRUS.  INSTALL A GOOD QUALITY ANTIVIRUS SOFTWARE (AVAST, AVG AND QUICK HEAL)ETC AND SCAN THE SYSTEM. CAUSE NO 3 RECENTLY INSTALLED A SOFTWARE, HARDWARE, DEVICE DRIVER.  DRIVER UPDATE SOLUTION :- ASK THE USER FOR RECENTLY INST

CHIPSETS OF COMPUTERS.

A CHIPSET IS A COLLECTION OF CHIP OR CIRCUITS THAT PERFORM INTERFACE AND PERIPHERAL FUNCTION FOR THE PROCESSOR.   THIS COLLECTION OF CHIPS IS USUALLY THE CIRCUITS THAT PROVIDES INTERFACES FOR MEMORY EXPANSION CARDS AND ONBOARD PERIPHERALS AND GENERALLY DICTATES HOW A MOTHERBOARD WILL COMMUNICATE WITH THE INSTALLED PERIPHERALS. CHIPSET ARE USUALLY GIVEN A NAME AND MODEL NUMBER BY THE ORIGINAL MANUFACTURER AND MODEL ALSO TELL YOU THAT YOUR PARTICULAR CHIPSET HAVE A CERTAIN SET OF FEATURES EG TYPE OF RAM SUPPORTED TYPE AND BRAND OF ONBOARD AND SO ON. CHIPSETS CAN BE MADE UP ONE OR MORE INTEGRATED CIRCUIT CHIPS.   INTEL BASED MOTHER BOARDS TYPICALLY USE TWO CHIPS.   THE FUNCTION OF CHIPSETS CAN BE DIVIDED INTO TWO MAJOR FUNCTIONAL GROUPS CALLED NORTH BRIDGE AND SOUTH BRIDGE. NOW I AM GOING TO SHOW YOU SOME OF THE BASIC CHIPSET IN COMPUTERS AND WIDELY USED CHIPSETS USED IN MODERN COMPUTERS .   THEIR NAMES AS 1) NORTH BRIDGE 2) SOUTH BRIDGE SO LET US BEGIN IN OUR LITTLE JO

ALL ABOUT LASER PRINTER

ALL ABOUT LASER PRINTER This printer is also known as page printer because they receive their print job one page at a type.   There are two major types of laser printer 1)       The first use a laser to scan the image on two a organic photo conductive drum (OPC) 2)       The second use an array of led to create the image on the drum.   Xerox invented this printer in 1971 but the first laser printer was introduced y hp in 1984. BASIC COMPONENTS Tonner cartridge :Tonner is a black carbon substance mixed with polyster resin to make it flow better and iron oxide particles to make it sensitive to electrical charge.   Tonner contain a medium called developer which carries the tonner until it is used by the EP(Electro photography) process. The tonner also contains the opc drum.   The drum is coated with a photo sensitive material that hold a static charge unless it is exposed to light.   The drum also contains a cleaning blade known as doctor blade. That continuousl

MOTHERBOARD AND ITS FORMS

MOTHERBOARD AND ITS FORMS The largest and most important circuit board in the computer is the motherboard.   This is also called as the main board or the system board.   The motherboard contains a socket to hold the CPU; the cpu is the component which most processing takes place. The motherboard is the most complicated piece of equipment inside the case because all devices must be communicates with the CPU installed on the motherboard.   All devices in a computer are either installed directly on motherboard or indirectly linked it to by expansion cards.   A device i.e. not installed in the motherboard is called a peripheral device. Now we will discuss something about form factors of motherboard. Form factor refers to the size and layout of motherboards.   As we think not all motherboards are alike.   In fact there is a significant difference in the capabilities and size of different motherboard form factors such as Mini –ITX and ATX.   This topic covers motherboard