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Corrective maintenance of a computer

Corrective maintenance of a computer

Corrective maintenance is performed when it is necessary to correct or repair any problems that this sucitando on our PC which may correspond to hardware or software, respectively.

When we need to replace a mouse, keyboard, power supply, speakers, memory card or expansion or the last of the cases is to make a small slodadura talking about corrective maintenance of hardware.

In the maintenance of hardware we can find:

-> Changing RAM - many times is to increase their capacity or on rare occasions because they have burned

-> Installing expansion cards - this is common because many times you want to expand or improve the functions of a computer and it exsist expansion cards that can be video, sound, network etc. Corrective maintenance can be considered because it is necessary to insert the card directly into the respective board, and if not careful it can be damaged.

-> When enabled devices I / S is damaged - we recommend you replace it with a new one but if the damage is not greater could proceed to the appropriate repair.

However when we meet or errors windows some programs that have stopped functioning or not functioning properly we are talking about software for corrective maintenance.
In software maintenance we find:
-> Possible Formatting the hard drive - when no other solution previously recommended supporting information on the hard disk will be formatted.

-> Possible virus problems - Devera is disinfected with a virus that has the updated databases (To avoid this, constantly update the antivirus on preventive maintenance)

-> System Restore - this can reach sucitar because there are certain programs that when installed can cause conflicts with other programs because a lot of occasions in the replacement of certain libraries that are required for normal operation)
Materials to use

Depending on the type of damage that has sucitado in that computer will need:

-> Installation CDs for your operating system to either complete reinstallation or restoration thereof.

-> Blank CDs in the case of having to make backups

-> Destronilladores star and plans of several measures
-> Feet to replace as memory, expansion cards, letters, keyboard, mouse, USB memory reader.

COMMON FAILURES

COMMON FAILURES AFTER A PREVENTIVE MAINTENANCE.
TROUBLESHOOTING

Not always get a computer to assemble the wing perfectly the first time you may fail at some time.

• A long beep: Memory problem. Make sure you've correctly inserted the memory module. If so and the problem persists, then you may be spoiled.
• One long beep then 2 short: video error. Possibly the video card is not sufficiently tight to the socket.
• A long beep and 3 short: video error. The video card does not work or there is a problem with your memory.
• A continuous beep: error plate. If this beep, the board may be faulty, but may also be due to another component.

Another common problem is that the floppy drive LED is always on because of misplacement of the connectors. If the cable has two connectors for 3.5 "drive then you should use the other connector. It is right that, if a single drive, connect to the end of the cable.

Anyway, if we believe that the motherboard fails better check the connections of all components, disconnect and reconnect the memory components such as processor and video card.

PREVENTIVE MAINTENANCE

                                            Maintenance is divided into two types

Active Preventive Maintenance: This type of maintenance involves cleaning the system and its components, the frequency with which it must implement this type of maintenance depends on the computer environment and quality of components. If the PC is in an extremely dirty should be cleaned on average every three months

Preventive maintenance liabilities:

This type of maintenance is the care system in its external environment, basically includes the physical conditions of operation of the electrical system and prevention. It includes physical factors such as l room temperature, the thermal power stress, pollution, dust, cigarette smoke and issues for possible shock and vibration. Concerning the electrical load factors as electrostatic, the overhead line and in some environments by radio frequency interference.

  GETTING STARTED

When you open your computer to directly manipulate the circuits, electrostatic discharge upon them if they can damage it permanently. For such manipulations must download continuously on the computer chassis (on the shield of the power supply for example) or use an antistatic wrist strap.

Remove the top cabinet                                                                                                


• Identify the main components   

• Make a small diagram of the arrangement of cards in the slots, and wires jumpered drives and hard disk. Note that these have one side colored red This signal indicates that the terminal is number 1.   

                                                                                        

• Remove the video card slots and other cards.

• Disconnect the power cords and cables from the drives, and remove the cabinet

  Unscrewing as necessary.

• Remove the microprocessor, battery and memory modules.

                                                           

Remove the storage units.Cleaning the systemThe powder is stored on components may bring several problems. One is that dust acts as insulation preventing proper cooling system, overheating will shorten the life of components. Another is that the powder contains conductive elements that can cause short circuits the system. Dust can also corrode the electrical contacts causing inappropriate behavior. Here lies the dust of cigarette contains chemicals that can conduct electricity and cause corrosion to parts of the computer. Therefore it is recommended to avoid smoking near your computer.

Software techniques for maintainingAny hardware failure that occurs in the computer equipment is feasible solution, butIncidence of failure is higher in devices that contain electronic circuits as well as mechanical parts, such as hard disks. If the hard drive were to fail the work of days, weeks or months may be lost. The only way to prevent such disasters is the backup information.

How often should be given Preventive Maintenance Team?

It is recommended that you give each computer equipment on average four times a year, but must take into account the site where it is installed since it could require up to one or two more times.