SYSTM CONFIGURATION: In some configuration or maintenance, the key part of the PC system is CMOS (Complementary metal oxide semi-conductor). The CMOS holds a program, which can be used to configure the CMOS setting. This program is usually entered by booting up the computer and holding
down a key or keys such as the Ctrl (control), Alt (Alternative), Esc (Escape), delete. F2, F10. The exact key to be pressed is manufacturer dependent. Some setting
Floppy drive: it allows you select the drive type for each floppy drive.
Time & date: it allowed time and date stored in the CMOS to be altered.
IDE primary/sec master/ slave: motherboard can support up to 4 IDE device .
Two attached as primary device, i.e. master and slave, and two as secondary device. This option allows you to specify what setting each device has. If the IDE device is not a hard disk e.g. a CD drives then auto or none should be used. Auto can be used with hard drives; the PC will determine the type of hard disk attached.
Boot sequence: most computers boot from hard disk drive and try the floppy drive if it fails the booting sequence start from CDROM but it also possible to change it.
Password: it allows you to set a password. It usually set either to protect only the CMOS settings
Serial port: it also known as the com ports can be disabled or the IRQ and 1/0 addresses can be changed.
Parallel port: the parallel port can also be configured. There are normally two parallel ports on a system known as LPT and LPT2. LPT use address 378 and IRQ7 while PT2 uses address 278 and IRQ5. if needed, either port can disable.
Standard Parallel Ports (SPP):- is the slowest. It is use for one-way communication from PC to printer
Enhanced Parallel Port (EPP):- also known as bi-directional is faster and allows two-way communication.
Enhanced Capabilities Ports (EPP):- allows greater flexibility still.
Troubleshooting is a mode operation used by a technician to find a fault (in a machine etc) using good equipment to interchange the suspended ones.
PROBLEMS AND SOLUTION
Computer cannot boot, no fan operation, the screen of the monitor is black and sound cannot be heard.
Solution:- in this case it seemed that the CPU is completely down to continue your prior suspect should be the power pack and its connection to the extension and on the mother board. After checking and there is no improvement just use another power pack on the system and at the point.
If the system comes back to normal and started to work it then means that the former power pack is bad, so we change it with new one and return with the system to work.
But if it happened that the system could not come up after the change of power with new one and there is flow of current to the (CPU) you can go ahead to troubleshoot other hardware that is connected internally to the CPU by removing all of them one by one and start to fix them back one after the other and be putting on the CPU.
As you remove all the component (except ram and processor) the system may come up to life and as you fix those component back, each one that quenches the system and do not allow it to come up may be bad and will need to be replaced after removal of the whole component and put them back but the system refuses to come up (after which you have checked both Ram and process) probably the motherboard may be bad and has two be changed.
A system was running but the keyboard refuses to work. (configuration)
Solution: We check if the cable is fix well, but if it’s not you put it well. It will work. If a system powered on and it begins to scan the hard disk is because it was not shut down well.
A system is not seeing the hard disk.
Step:- You check the jumper and the cable that is connected to the hard disk.
A system was boot on but the window was not showing.
Solution:- The hardware is the problem you have to reload the operating system, in the hardware it is the Ram, you have to change its.
Printer:- The system is not seeing the printer.
Solution:- You trouble shooting and use laptop to check the problem, so we find out that the printer parallel port is faulty so we change it, it was ok.
In a system the Microsoft word if you open but to type or use it, it refuses to work.
Steps:- You have to uninstall the program and reload the new version of the program in the system after uncheck it, it is working.
A system was showing blue face and displays some information in the screen; in the information display is to check the hardware.
Step:- We troubleshoot by changing the hardware’s to know the one data has fault e.g. memory, with good one, if it persist, then the hard disk, it continue, removed hard disk from the fault system put it to the good one if it’s continue, you have to change the hard disk.
To remove from master to share, is a situation were you connect two hard or two thing at a time or you put CD-Rom and hard disk, you change the hard in master an DCD-Rom to slave. If two hard disk you put one in master and the other in slave. A system was rebooting and hanging.
Step:- You check the RAM by removing and put new one and you have to reload the window but will not format the system. But on the process of check the hard disk, the problem is from the hard disk, what we do is to remove it and put new one. How we find out that is from the hard disk, we put scanning disk software is display where the fault is, so we have to change it.
A system was on but it was displaying something, showing that is not seeing the hard disk and CD-Rom is in master instead of slave.
Step: Open the system remove the jumpers of the hard disk put in master, remove the CD Rom jumper put in slave. Cover backs the system and start it on again it will work well.
A system was put on but if it comes up, it will display full screen showing nothing.
Step:- We check the hard disk. It was not seeing the hard disk; we remove the jumper and put it in master because it was in service control. It display that it have seen the hard disk but yet it refuse to work. We go to setup because problem may be from there, we check it was not arrange well.
We arrange it, it starts working but it refuse to boot to window i.e the operating system have problem, what to do, start a fresh by reloading the window, when reloading it will display some information either to format, repair.
We click repair but for you to repair you cannot use different version of window except the one that was there after repairing it refuse to work the next thing is to format with the better version after formatting it started working. Then we load some office in the system, and then it was ok.
A system was hanging the problem is the Ram
Step:- We have to change the Ram and put new one.
A monitor was not powering on.
Step:- You open the monitor and check the fuse, if it is from there, we change it and test it was ok.
Solution:- You repair it by using installation disk, it didn’t work, after we format when formatting we notice that the hard disk is making noise, so we have to change the hard disk and buy new one and put. It was ok.
A system encounter electrostatic
Solution:- You discharge the jumper for 5 mines and put it back it will work.
A system was put, but it refuse to come up, we open the system, remove the ram, clean it, put back it refuse to work, put new one it still making noise.
Step:- the next thing is to change the board of the system.
I want to thank the SIWES AND THE UNIVERSITY for giving me the opportunity to achieve the aim which is to expose students to machines and higher equipment professional work methods and ways of safeguarding to the work area and the workers in industries and other organization. Provide an avenue of students in Nigeria universities acquire industrial skills and experience in their course of study of which I have done. In my IT, I was exposed to work methods and techniques in handing equipment and machinery that may not be handing equipment and machinery that may no be available in the universities.
I learnt that hardware refers to objects that you can actually touch, like disks, disk drives, display screens, keyboards, printers, boards, and chips. In contrast, software is untouchable. Software exists as ideas, concepts, and symbols, but it has no substance.
I learnt on how to install devices in the system unit and also trouble shooting.
I learnt that of complete working computer. The computer system includes not only the computer, but also my software and peripheral devices that are necessary to make the computer function. Every computer system, for example, requires an operating system.