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TROUBLE SHOOTING FOR NO DISPLAY IN PERSONAL COMPUTER.

  TROUBLESHOOTING FOR NO DISPLAY FRIENDS TODAY I AM GOING TO TELL YOU ABOUT THE CORRECT STEPS TO BE TAKEN IN ORDER TO REPAIR THE COMPUTER IF THERE IS NO DISPLAY.  MEANS THAT WHEN YOU START THE COMPUTER, THE CPU FAN AND SMPS FAN IS RUNNING ALL LED IS ON BUT THERE IS NO DISPLAY IN THE MONITOR. STEP 1  START THE COMPUTER AFTER 30 SECONDS  PRESS NUMLOCK KEY COUPLE OF TIMES.  IF THE NUMLOCK LED IS GETTING ON AD OFF,  THEN THE PROBLEM IS WITH THE MONITOR.  IF THE NUMLOCK LED IS ON OR STEADY ON OR STEADY OFF THEN THE PROBLEM IS WITH THE CPU. STEP2--> SUPPOSE THE PROBLEM IS WITH THE MONITOR  1) CHECK THE AC WALL OUTLET (PLUG) AND POWER CODE WITH THE LINE TESTER OR MULTIMETER.  NOW CHECK THE POWER BUTTON IS ON AND THE BRIGHNESS EVEL OF THE MONITOR.   2) IF THERE IS NO POWER  IN THE MONITOR  THEN THE POWER PANEL MIGHT BE FAULTY.  REPAIR THE MONITOR IF THE POWER LED IS ON, EJECT THE VGA CABLE  FROM THE CPU AND MESSAGE WILL APPEAR ON THE DISPLAY.     3) IF IT DOES THEN THE VGA CABLE OR

NETWORKING DEVICES A GENERAL SUMMARY

 NETWORKING DEVICES USED IN INTERNET CONNECTION: A GENERAL SUMMARY NETWORK DEVICES, OR NETWORKING HARDWARE, ARE PHYSICAL DEVICES THAT ARE REQUIRED FOR COMMUNICATION AND INTERACTION BETWEEN HARDWARE ON A COMPUTER NETWORK. LAYER 4 -> FIREWALL LAYER 3 -> ROUTER LAYER 2 -> BRIDGE, SWITCH LAYER 1 ->LAN CARD, REPEATER, HUB, MODEM, ACCESS-POINT. NETWORK INTERFACE CARD(NIC) A LAN CARD IT IS A LAYER 1 DEVICE.  IT IS USED TO CONNECT A PC, LAPTOP, WORK STATION AND A SERVER TO A NETWORK. A LAN CARD IS BUILT INTO A MOTHERBOARD BUT WE CAN PURCHASE ADDITIONAL LAN CARD ATTACH IT IN A PCI OR USB SLOT.  EVERY LAN CARD HAS ITS OWN MAC ADDRESS. REPEATER REPEATER IS A LAYER ONE DEVICE. IT WORKS LIKE N AMPLIFIER, BUT REMEMBER APLIFIER WORKS IN ANALOG SIGNAL WHERE REPEATER WORKS IN DIGITAL SIGNAL.  IT IS USED TO FIX THE PROBLEM OF ATTENUATION. HUB IT IS ALSO A LAYER1 DEVICE IT WORKS LIKE A REPEATER BUT REMEMBER REPEATER CANNOT BE A HUB.  A HUB CONTAIN 4, 6, 8, 12, 16 PORTS.  HUB REGENERATE AND IN

EXPANSION SLOTS IN MOTHERBOARD

EXPANSION SLOTS IN MOTHERBOARD  Friends today i am going to share my knowledge and understanding of the expansion slots. So lets begin with our topic. Expansion slots are used to provide additional properties for carrying the computation task such as additional video, audio and sound, advanced graphics and Ethernet.   So lets begin with our knowledge hunting. I will start by AGP expansion slots. AGP AGP stands for ACCELARATED GRAPHICS PORT.  AGP was introduced with high speed 3D graphics display in 1996.  It is used for older graphics card types which is discontinued by PCI EX16 graphics port in 2005.   These were kernel version of AGP most of the brand in 1.5 volt DC.  AGP 1x channel and 66MHZ clock speed resulting a data table of 266 MBPS.   AGP 2x, 4x ,8x specification multiply MHZ clock to produce increase throughput. AGP 8x produces effective clock frequency of 533 MHZ resulting a throughput of 2 GBPS (2133MHZ) resulting a throughput of over a 32 bit channel. PCI PCI  stands for P

BIOS AND ITS LITTLE COMPONENTS

DETAILED ARTICLE ON BIOS AND ITS COMPONENTS Today i am going to discuss something about bios( basic input output system).  So lets get started. A computers basic input output system (bios) is a embedded software on a motherboard.  It is the first software a pc loads to use components such as cd drives, mouse keyboard practically the moment you turn it on. The bios is responsible for controlling or managing low-level but extremely important process like  the power on self test.  It is the boot process and the interaction of components on the motherboard.   the topic will help you to flash (update) you bios by taking right precautions and have a walk through each step.  Not all computers have the same bios manufacturer, let alone the same exact process,  but they all share steps and precautions. UPGRADING THE SYSTEM BIOS When the system was designed, the bios program code will work with all specific devices.  As the computer technology changes we need to update its capabilities .  Genera

FORMATS OF FILESYSTEM IN COMPUTER TECHNOLOGY

FILE SYSTEM AND FORMATING In this post i am going to teach you about various types of file system and formating used in computers. So lets start. The file system dictates how information is organized on the disk.   For example, the file system determines hjow large the allocation unit, or storage unit, the file is.   The following sections introduce the different file systems available and the os’ s that support them. The FAT FILE SYSTEM – the file allocation table (fat) file system has been the most popular file system up until the last few years.   The file system is designed for the small disk and simple folder structures.   it resides in the beginning of the system. It keeps two copies of the data in its table as back up so that if any copies become corrupted it can cure that corruption.   The file allocation table along with the root folder should be kept on fixed position so that boot files can be perfectly located.   The file allocation table (fat)

WINDOWS 8.1 DIFFERENT COMPONENTS NORMAL INSTALLATION AS WELL AS CLEAN INSTALLATION

ALL ABOUT WINDOWS 8.1 There are three types of edition of windows 8.1.   They are made for different users of public.   Many use it for research work; many use it for business work.   I am going to write few things about different version of windows 8.1 or i say i will give introduction of editions of windows 8.1.   So let’s start We should select a device with the best mix of feature which can suit the users need according to the definition.   Also it is important to select the suitable version of windows 8.1 operating system.   Most of the vendors provide preinstalled operating systems with the device.   For example Microsoft surface pro comes preinstalled with a 64bit edition of windows 8.1 pro. Windows 8.1 –this edition of windows 8.1 contains only the key operating system features and runs application such as Microsoft office suit.   This is appropriate for home office environment and small business environment which requires a few simple features.   Also rememb

CODES OF LANGUAGE IN COMPUTER SYSTEM. WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?

  CODES OF LANGUAGE IN COMPUTER SYSTEM.   WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?   There are many codes in computer system which may remain unnoticed by many computer geeks and nerds.   I also first didn’t see it but I am going to share it because these are important codes and used by many computer hardware developers, vendors and computer software developers.    They are mostly understood by ELECTRONICS AND ELECTRICAL ENGINEERING geeks or nerds.   They are as under : ·         ERROR DETECTION CODES ·         ALPHANUMERIC CODES ·          REFTLECTED CODES First we will discuss something about ERROR DETECTION CODES.                                                                                                              ERROR DETECTION CODES:   Binary information , be it pulse modulated signals or digital computer input or output, may be transmitted though some form of communication medium or electrical wires or radio waves.   Any external noi