Science fair computer education

Location :

Saljhandi 4 Rupandehi, Butwal 123456
Added by Jopie, at 01 January 2020

"first aim"
'our suggestion your oxygen '
we are reading 0 level to high level,
with cyber & tuition class
1. Math
2. English
3. Science
4. Account
5. Birch course


last times, are you understand us?
:home daily vary technical support
''''''''''''''''''''''''''''Computer repairing and sales.................................

s. n Problem Problem cause Problem solution
1. No display -Loose connection of monitor cable with display card
-display card not fixed properly In display card slots
-memory chips not fixed properly in memory slots.
-processor not fixed properly In CPU slots.

-resolution of monitor is set up in very high resolution, which is not supported by your monitor. (in win 95/98 operating system)
=may be due to defect of display card.
=power supply does not supply rated voltage.
=me by due to defective monitor.
=motherboard defective.

=sometime due to reverse connection of data cable with HDD. =connect monitor cable properly with display card port.
=fix display card properly In display card slot and check for display.
=fix memory chips properly in memory slot and recheck for display.
=fix processor properly and check for display.
=start your computer in safe mode and reduce the resolution setup then check.


=change display card and check.

=change power supply and check for display.
=check display by fitting on the working monitor, if so, repair your monitor.
=Check by changing your mother board if so, change your board.
=Due to this reason display problem comes rarely still check for it by checking connection HDD.
2. Display comes but not clear as required or expected =Improper installation of display driver due to high resolution setting of monitor which is not supported by monitor.
=which is not supported by monitor. =Check for installation display driver if it is not same with your display card chipset that install exact display driver which is same with your display card chipset.
=restart your computer in safe mode and set resolution in low order.
3. Continuous beeping sound come when computer is switched on and display doesn’t come =Memory chips do not fixed properly in memory slots.

=memory slots in motherboard are defective.
=display card does not fixed properly in board.
=may be due to defect of display card. =check for it and if so, fix properly and restart your computer for elimination of sound and display.
=for that your may be have to change your motherboard.
=check and fix it properly, and check either the problem is solved or not.
=Check by changing your display card; if the problem is solved change your display card.
4. Floppy driver power LEDD glows continuously and FDD does not work. =data cable of FDD may have fitted reverse direction. =Check it and connect data cable in proper direction.
5. FDD error =data cable of FDD may have fitted in reverse direction.
=power supply port is not fitted in FDD.
=I/O card loose fitting or I/O card may be defective.
=check it and connect data cable in proper direction.
=check and connect power port to FDD.
=Check and do necessary(change I/O) card id it is found defective.



6 FDD not reading =Diskette you are using may be defective.
=Improper setting of FDD type in CMOS utility program.
=
Due to dirt inside FDD (contamination in read/ write head of FDD)
=FDD read/write head etc may damage. =Check by change your good quality diskette.
=check FDD type in CMOS program and if it does not match, set it with proper type of FDD.
=Clean FDD head by FDD cleaning diskette and check.
=lubricate moving assembly and check.
=for it you have change your FDD.
7 Hard disk driver (HDD) fails. =Data cable not connected properly.
=Data cable connected in reserves side.
=power cable not connected (in 186, 386 etc model computer)
=improper jumper setting of hard disk (for master & slave setting).
=Improper setting of hard disk type in CMOS.
=Improper jumper setting of hard disk (for master slave setting).
=Hard disk may have damage/crashed it self. =Check for loose connection and restart your computer for verification.
=Check in m and if so, connect it in proper direction.
=proper direction.
=connect power cable to power connector port of HDD.
=Fix I/O card properly.
=define properly hard disk type in CMOS setup.
=Check and fix jumper in proper way.

=if hard disk has been crashed, you can listen some unusual sound from your computer check properly then change your drive if it has crashed.
8 Memory feast fail. =Due to improper fixing of memory chips in memory slots.
=Due to mismatching of memory chips (different type of memory chips used).
=Due to defect of memory slots in motherboard.
=defective memory chips. =Fix memory chips properly.

=Use same type of memory chips.

=if memory slot is damage most properly you have to change your motherboard.
=for that you have to change memory chips.
9 Processor does not detected properly (e.g. speed of processor etc) Improper jumper setting of motherboard in 486 and old model of Pentium motherboards.
=improper selection/speed setting of CPU in CMOS utility program.
=motherboard may not support your rated CPU. Refer manual of motherboard and set jumper properly.

=SET selection/speed of CPU in CMOS utility program properly.
=you can very it by studying motherboard manual, if so, change your M/B, which support your support your CPU.
10 COMPUTER reset itself Power supply unit does not regulate voltage properly.

=may be due to voltage fluctuation.


=memory modules may be defective.
=hard disk drive is full with data and program. =Check output for power supply port and if found so, repair power supply or change it.

=if voltage fluctuation is very high in your house better to sue voltage regulator and UPS.
=Change memory modules.

=delete your unnecessary files and data’s in your drive and vacant some space in your drive.
=change your motherboard.
=change your CPU cooler.
11 Computer hang problem Improper settings of peripherals in CMOS.
=Virus infection in your programs and documents.
=Memory may be defective or mismatch of memory modules.

=Conflict of one peripheral with other peripherals. =set all parameters properly in CMOS.

=scan your all driver with latest virus scanner
=use same type of memory modules and change them, we are found defective.
=check it your device manager menu and try to remove conflict by installing proper drivers, changing IRQ setting etc.
Due to improper power output form from power supply port.
=improper installation of driver of peripherals.
=insufficient memory in your system per required by your programs.
=insufficient disk place in your hard disk.




=CPU cooler not working properly.
=not compatible peripherals with motherboard used (eg. Sound card, display card, modem card etc.)
=mismatching of VRAM used in PCI display cards.
=may be corrupted program files or programs installed improperly.
=bad sectors in hard disk drive.

=due to few specific games and software installed in your computer.
=due to defective mouse and key boards.
=desktop resolution of monitor set in higher range. Check it repairs your power supply or change it.
=install proper drivers of peripherals.

=upgrade your memory to which capacity as per required by your program.

=if there is no sufficient free apace in your hard disk, that also, your computer may hang. For that delete unnecessary files. Temporary files unnecessary programs in your disk and makes space free to run programs.
=change your CPU cooler.
=change your motherboard.


=use compatible cards.
Use matching type of VRAM.

=reinstall program proper.
=try to remove bad sectors by software programs otherwise change your drive.

=remove those programs.

=change your keyboard and mouse.


=change that setting in lower other.
12 Computer slow problem =in sufficient memory required by your programs.
=in sufficient free disk space in your hard disk.
=due to virus infection.

=Lower speeds processor in your system.
=too may programs running at same time.

=Lots of programs kept in start up.
=cache memory disabled in CMOS program.
=low video memory in display card.
Upgrade your memory.

=delete unnecessary files of processor.

=scan your drive with latest virus scanner.

=upgrade to latest model of processor.

=do not run to many programs at the same time.

=Remove few programs in start up.
=Enable cache memory in CMOS.

Use display card with high video memory.


13 Mouse hang (no defection of mouse) =conflict in computer port settings.
=cables for port not connected properly in motherboard.
=dust in mouse ball, ball roller does not move properly.
=mouse defective. =install computer port properly.
=connect cables properly.

=service it properly.

=change your mouse.
14 Modem not working =modem not connected properly in motherboard.
=due to conflict in COM port.

=modem drive not installed properly.
=conflict with other devices. =connect modem properly.
=configure COM port properly like mouse etc.
=install modem driver proper.


=Try to remove conflict by changing IRQ setting.
15 Sound not coming or sound coming but as expected quality =connect of sound card with speaker is not proper.
=sound card not fixed properly In the board.
=sound card driver not installed properly.
=conflict of sound card with other drivers.
=Volume level is set in low level mute.
=sound card may be defective. Speaker may be defective. =connect speaker properly.

Fix sound card properly.

=install sound card driver properly.

Try to remove conflict by changing IRQ settings of different device.
=connect audio cable between sound card and speaker.
=Change your sound card. Change your speaker.

16 CD-ROM drive not working =improper jumper setting.
=dirt in lens of drive.
=driver software not installed properly.
=due to improper connection of data cable in between hard disk and CD-ROM drive.
=power cable not connected properly in the drive.
=CD-ROM driver’s defective itself. =set jumper properly
=clean drives with lens clear CD.
=install driver properly.

=connect cable properly.

=connect power cable properly.


=change the drives.
17 CD’s not reading properly in the drives =due to scratched CD.
=lens of driver is dirty.
=speed of driver is low.
=Due to defect of driver.
=lens of drive function partially.
=use good quality CD.
=clean with lens cleaner CD.
=use high –speed drive.
=change the drive.
=change the drive.
18 Video CD’s not playing properly (jerky picture, hang etc. Video memory and display card is less.
=not enough free space in HDD.

=no MMX technology in CPU.
=fixing player software not installed.
=display card does not function properly for VCD.
=VCD not reading properly by CD-ROM drive. Use display card with high capacity video memory (at least 4MB etc).
=delete unnecessary files in HDD and make more space free.
=use CPU with MMX technology.
=install fixing player.

=change display card.

=change with good quality CD.
=Change CD-ROM drive.
19 Printer does not printing =printer driver not installed properly.
=connection of printer cables my loose.
=printer port cable may looser may be connected reversibly in motherboard) or I/O card is loosely fitted 486 and 386 computer).
=printer is not online (offline).
=paper guide direction of printer is not direction properly or not selected the same direction with you are feeding the paper.
=defect printer port, printer cable or data switch you are using it.
=power does not on in printer.
=some other fault in printer. =install printer proper.

=connect tightly.

=make connection properly.



=set printer in online.
=select in the same direction in which you are feeding paper.


=change it which one is found defective.

=repair power supply of printer.
=repair printer properly.
20 Color problem in monitor display =pin in monitor cable (which is fitted in display port) is bend or damage.
=due to defective display card.
=due to incapability of display card.
=due to defective monitor.
=due to magnetic induction near to the monitor (like keeping speakers near to the monitor). =make it proper.


=change it.
=use capability display card.
=repair monitor.
=keep these items little bit far form monitor.

21 No power on white switching on computer =improper connection of power cable etc.
=power on switching defective.
=power supply defective. =Connector in properly.
=repair it or changing it.
=Repair power supply.
22 Non- system disk error when boiling booting computer =no system files in your hard disk or no system diskette in FDD.
=If there is any diskette inserted in FDD in which there is no system files. =transfer system files in HDD.

=Remove diskette from FDD.
23 Windows protection error =due to conflict of different peripherals to one another.

=telephone cable connected wrongly there in port modem.
=telephone line dead. =try to remove conflict by installing proper drivers or may have to change few peripherals if no solve by software.
=connect it properly.

=check phones line and correct it.
24 Fatal error exception CPU cooler is not working proper and heat the processor.
=due to memory problem. =change CPU cooler.

=change memory modules.
25 Illegal operation problem =due to software not installed properly or corrupted software files. =re-install particular software properly.
26 No menu bar =due to virus infection. =scan your HDD with latest virus scanner.
27 Press f1 key to continue when computer is switched on =improper setting in CMOS setting =scan your HDD with latest virus scanner.
28 Document can not save =due to virus infecting. =scan your HDD with latest virus scanner.
29 Modem is not found =due to virus.
=due to not enough free space in HDD. Scan your HDD with latest virus scanner.
=Delete unnecessary files in FDD and make space free.
30 Modem is not found =due to conflict of modem with other devices. =try to remove the conflict by changing IRQ setting or by installing drivers properly. Or your may have to change some other peripherals also.
31 No dial tone is there through modem =telephone cable not connected n modem.
=telephone cable connected wrongly there in port of modem.
=telephone line dead. =connect telephone cable.
32 Windows shut down problem =virus infection.

=due to corruption of windows files.
=parameters setup wrongly in problem in HDD. =scan your HDD with latest virus scanner.

=reinstall windows.

=set is properly.
=check HDD by scan –disk problem and try to repair otherwise you have to change HDD.
33 Dial up connection problem =not proper setting of modem.
=Dial up adapter in win’95/98 and TCP/IP protocols not installed.
=modem problem. =set is properly.
=install all these.
=click and change it.
34 Disk boot failure =CMOS setting improper specially HDD type, FDD type etc.
=no system files are there in HDD. Set it properly.

=transfer system files in HDD.
35 CMOS setting change itself computers switching off every time =CMOS Battery Lows.
=CMOS battery is not charge by motherboard. =change CMOS battery.
=for that you have to change the motherboard.

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