Troubleshooting

Troubleshooting
Troubleshooting is a form of problem solving. Troubleshooting is the process of finding and eliminating
the cause of a problem.
Troubleshooting are divided into 2 types
                        1. Hardware Troubleshooting
                        2. Software Troubleshooting
Hardware Troubleshooting:
It deals with the process of eliminating the potential causes of problems related to PC
components, namely
                                 Hard Disk
                                 Monitor
                                 Mouse and others
Software Troubleshooting:
It referred to removal of the problems arising due to system software or application software.
Troubleshooting requires identification of the malfunction(s) or symptoms within a system. Then,
experience is commonly used to generate possible causes of the symptoms. Determining which cause is
most likely is often a process of elimination – eliminating potential causes of a problem. Finally,
troubleshooting requires confirmation that the solution restores the product or process to its working
state.
Following five step processes is adopted in troubleshooting when a problem is encountered
1. Identify the list of symptoms for the problem.
2. Create a hypothesis which can satisfy the symptoms.
3. Isolate the problem as per the suggested hypothesis.
4. Implement the action plan by testing the hypothesis and narrow-down the possibilities.
5. Test whether things have come to normal and observe.
Trouble shoot:
1). If you hit the power button & nothing is happened.
 Check all power connections
 Check for power on motherboard (or) system board
2). If the system turns on but does not beep (or) begin to boot up
 Remove all components except mother board (or) system board / CPU check by giving power to
them
Computer error beeps codes (or) sounds
1). No beep : no power, bad CPU, loose peripherals.
2). One beep : every thing is normal.
3). Two beeps : CMOS error.
4). One Long beep , One Short beep : mother board (or) system board problem
5). One Long beep, two short beep : Video problem
6). One Long beep, three short beep s : video problem
7).three long beeps : keyboard error
8). Repeated long beep : memory error
9).continuous high-low beeps : CPU over heating.