COMPUTER TROUBLESHOOTING
Computers are tools that are classified as important today, we take one
examples of office activities, of course with computers so the work can be
resolved more quickly. As a user or computer user must we also
never experienced a problem with the computer. This may be the result of
incompatibility of the basic components of the computer itself which is usually associated with
Software (or software applications), hardware (hardware) or brainware (the
computer users).
Understanding Computer Troubleshooting
In the computer world, things are problems associated with the computer is called
And troubleshooting computer problems are caused naturally. In
this opportunity we will learn to detect a problem on your computer
particularly those related to hardware.
For problems with the software you should do a simple detection
first such examination of files relating to the Software or the specification
demand (requirements) of the Software. If the problem is quite complicated, we recommend
Just reinstall your software, since it would be too complicated to fix
a software, while for problems with brainware, the author can only
provide advice "resting before it .. hehehe,
Techniques in Troubleshooting
There are two kinds of techniques in detecting problems in the computer, the technique
Forward and Backward techniques. To learn more about both these techniques, it helps us
first discuss the definition of each of these techniques.
1. Forward Engineering
As the name implies, this technique is in all kinds of problems detected
assembled computers since the beginning of this technique is usually only used by people
computer dealers often make a computer assembly. In this technique can only take place
detection problem is simple and done before the computer turned on (the confluence
electricity). To simplify, please refer to the following examples:
§ After the computer is assembled, the examination conducted on all hardware
has been installed, for example, to examine the relationship of the Power Supply cable to the power socket on
Motherboard.
§ For ATX chassis, we check whether the Power Switch cable is connected correctly.
§ etc..
2. Backward Engineering
Almost the same as the previous technique, Backward technique is a technique for detecting
errors on the computer after the computer turned on (electrically charged). More techniques
generally used because of problems in the new computer will come after
"Flying hours" the computer a lot and this has been a natural thing. Can
we take some examples as follows:
§ Floppy Disk that can not read discs properly.
§ Computer would not start when the power button is pressed on the casing.
§ etc..
Table Detecting Problems
After a simple explanation of both these techniques the author will discuss more in
Backward technique again, because for home computer users must have this technique more
many techniques will be used instead of Forward. To further simplify the
detection problems on your computer, please refer to the following table:
No
Components
Problem detection
1
Power Supply
Measurement Analysis
2
Motherboards
3
Speaker
4
RAM
Voice Analysis
5
VGA Card + Monitor
6
Keyboard
Analysis View
7
Card I / O
8
Disk Drive
9
Diskette
Measurement Analysis
At this stage, the detection problem by measuring the voltage on
components 1 through 3. Use tools like multitester to measure
voltage received or given component.
Example: Measure the voltage received by the Power Supply, then measure
voltage supplied by the Power Supply to the other components.
Voice Analysis
At this stage the detection problem using the voice code (beep) owned by
BIOS and we can hear through your PC speakers. Make sure the cable is mounted PC Speaker
well. Possible problems lies in the component number 4 and 5. To
facilitate the introduction of the voice code, please refer to the following information:
§ The sound of short beeps once, it means the system has done well Booting process.
§ short beeps sound 2 times, it means there is a problem in the configuration or settings in the CMOS.
§ 1 long beep sound and the short times 1 times, meaning there is a problem on the motherboard or
DRAM.
§ 1 long beep sound and the short time 2 time, meaning there is a problem on the monitor or VGA
Card.
§ 1 long beep sound and a short time 3 times, meaning there is a problem on the keyboard.
§ 1 long beep sound and the short times 9 times, meaning there is a problem in the ROM BIOS.
§ long beep sound continuously, meaning there is a problem in the DRAM.
§ a short beep sound continuously, meaning there is a problem receiving voltage (power).
§ In some brands of motherboards sounds a beep several times when
processornya temperature is too high (hot).
Note: the above code beep sound effect on AWARD BIOS, for other types of BIOS
likely to have codes different beep sounds.
Analysis View
At this stage the detection problems are more likely because the location of the problem
can be identified based on the error message displayed on the monitor. Possible location
problems in the component numbers 6 to 9.
Example: When switched on the computer keyboard error message appears, it can be ascertained
problem lies only on the keyboard.
How to Recognize Fast Troubleshooting
§ If there is a problem and the system still gives the message display on the monitor or
accompanied by a beep sound 1 or 2 times, then the problem probably lies in the
component numbers 6 to 9, ie the keyboard, Card I / O, Disk Drive and Diskette.
§ If there is a problem and the system gives beep sound code for more than 2 times, then
possibility of the problem lies in the component number 4 and 5, the RAM, VGA Card
and Monitor.
§ As for the problems that are not accompanied by a message on the monitor or beep sound code,
most likely the problem lies in the component numbers 1 and 2, the Power Suplly
and the motherboard.
With both kinds of techniques in detecting such an issue with the computer, of course
be more enriched our knowledge in the field of computers, so if one day there
problem on your computer we can perform tests before
brought to the service, even if it should be brought to the service we already understand
the problem, so we are not deceived by the bad service workers;)
With the understanding that computer troubleshooting more in course will be more
it easier for us to know where the problems in the computer and must be
more fun if we can fix the problem yourself. Hopefully
simple discussion of troubleshooting can be useful, good luck and
thanks.
Troubleshooting Motherboard
If the processor is considered as the "brain" computer, the motherboard may be considered
the "heart" of life on the PC. As a component of which bears "heavy burden"
little damage can make your PC wheezing.
In the early generations of computers, components such as processors and Ram directly attached to
motherboard without can be changed or added again. Semcam model is called
backplane. New design allows modular replacement of some
components are attached to the motherboard easily, while providing flexibility
availability of opportunities for improving PC technology itself.
However, convenience is always a risk mengandeng. So it is with the motherboard. Since
motherboards made "a target" key to generate an optimal PC, we
faced with the intricacies of growing. Let's show some examples.
Increased need for a powerful processor motherboard designs must
follow the demands of processor development. The need for greater data transfer speed
require changing the motherboard design. -Perkembangn latest developments
such as Ware Fire technology, USB 2.0, RAID System, Smart Card, Secure Digital, wireless,
all gathered on the same land: the motherboard.
Though not currently popular all these technologies, but to give power
pull a product motherboard makers were no less sense. They trooped
make room upgrade it, without having to include it when he produced
mass, to keep him still economical.
Diverse types of chipsets on the motherboard that became a benchmark of technical support is also
so make the user confused to choose which is best. Not to mention
finished with this one issue, we are also faced with several concerns,
how to overcome this problem occurs bilaman PC motherboard as the heart, the problem
a little can make a PC termehek-mehek.
It is precisely the number of options, the first key so that we still do not get lost
delam wilderness is to understand the art of architecture mother board, and equip themselves with
master practical skills. Here are the steps.
Repair or Replace
The decision to repair is determined by the level of damage that occurs in
a motherboard. Meanwhile, the replacement step depends on the level of
technology support motherboard or your economic ability to spend
computer goods. The problem is what if the motherboard is still
comparatively new, while we are not able to detect or determine the road damage
exit? take a second step before deciding to buy a new one.
Back to Basics!
· Check all connectors. Of course, this step is necessary to ensure that no
There was a loose connector or not plugged in correctly.
· Check all the components attached. This is important to memdeteksi, whether the installation
processor, RAM, VGA card is correct or not. Also to ensure that the
Physical IC-IC in the motherboard is not damaged or loose.
· Check incoming power source through a power suplay. To be sure, check
first power supply of electric nets, and then check the output of electricity at power cables suplay
by using the multimeter. Make sure that the output of each cable is in accordance with
recommended in the manuals.
· Check, is there any foreign objects that interfere with the motherboard line. Cables, screws,
dirt, dust can also affect the breath of life motherboards. Such interference
This, in addition to data traffic is interrupted, if the strategic position could lead to
konslet aka short circuit.
· Check jumpers, DIP switches, or the regulator pins each feature carefully and
true. Make sure that you refer to the manuals do not use the science of recitation.
Incorrect settings can make your motherboard does not want to live.
· Check your motherboard parts attached to the casing. Short circuit due to
locking without insulation between the casing, the locking screw with the motherboard would make
electricity stopped every time the power button is pressed.
PC systems do not light up when an onboard graphics card is replaced with VGA Card
Such problems often occur when users want to upgrade graphics card
on the motherboard that has a VGA add on is installed. However the, in some
motherboard, you have to do change the settings manually. Actually this is not
would happen if you know the tips and tricks. Usually the problem will occur when the card
embedded graphics and add on your boot for the first time. System
then does not turn at all. Does not even beep sounds at all.
The first step is to re-use your onboard VGA.
When It's in the Windows system, do uninstall the onboard VGA driver that you
use. After that, restart your system back to then go to the menu
BIOS. In this menu, you must turn off or MEND-disable onboard VGA feature. After
turn off this functionality out of the BIOS and turn off the system.
The next step is to install add on graphics card in your AGP slot or PCI slot
according to the type of graphics card you want to use. Once properly embedded in
the appropriate slot, turn your system back. The system will be back on the cards
Graphic add on as the primary graphics card. Do not forget to install the latest drivers
in accordance with the graphic card.
The system does not work when the processor is replaced
This incident happened very often when you want to upgrade or downgrade
by using a processor that has a front side bus different. For example when
You were Pentium 533 MHz FSB you replace it with the FSB to 400 MHz, while
Your BIOS settings are still to work system on 533 MHz FSB.
In order for the system to work again, there are two ways that can be taken. The first way is
entered into the system BIOS and used Menganti FSB 133 MHZ manjadi of 100 MHz. It
to note that the system motherboard and processor you still can not tolerate
use of the FSB is much higher than that used.
Another way is to clear CMOS. If this step is done. Go to
BIOS menu and make sure your FSB is used in accordance with the FSB is working
on your processor. This step is guaranteed to work to overcome such problems
it.
The system does not work when the DDR memory module is replaced
There are several possibilities that might be an issue with the cause of such problems mangapa
this happens. The first is the compatibility of the motherboard that is used to a new memory
installed. The reason there are two, namely the problem of memory chips used or
an issue with the memory type used. Some motherboards require strict type chip ririskiky
yangh used. If no match, the motherboard will not detect any memory
which resulted in no operation of the system. While some motherboard is not
want a single type of memory dipsangi side or double side. Again, this compatibility issue
motherboard to memory installed. If the problem is a memory chip,
BIOS updates can sometimes be a telling one solution.
The second possibility is the type of memory has a CAS latency installed more
lower memory latency than previous CAS, while in the BIOS latency still gives a chance
the CAS-2. the only way is to do a reset or clear the BIOS.
After that go to the BIOS menu that regulate the work on the latency and memory
change in accordance with its memory capacity. The most secure is to change the
latency is working on the CL-2, 5.
The system does not work despite all the power has been connected
This problem can arise due to several causes. First check whether there is a flow
incoming power to the motherboard. This is important to ensure electricity is there
that flows on the motherboard. On most motherboards, an indication of flow
the flow of electricity is marked by a lit LED lights. If this lamp does not
light, there is certainly no electric current flows.
Second, the possibility of power that is not too suplay good alias does not have the energy
suit. The only way is to Menganti suplay power that you have with a more
good.
A third possible cause of the graphics card terpasangnya not right. It
it usually happens when you carelessly put add on graphics card. To
handle, you can improve the position of installation. Keep upright position
straight to the motherboard.
The fourth cause of which often do not imagine the damage to the power button or
connections that connect the front panel with the power button on the front casing. It
cause you can not turn on the system although all installed correctly.
The system suddenly hangs when in overclock
There are several causes for this problem. First cause is in some components
requiring operating frequency is higher. This example happens to AGP or
PCI installed. To do this, you can go into BIOS and raise
working frequency. This, too, with a note if you use the motherboard's
support.
The cause of both is the lack of voltage used. For that, you also can enter
to the BIOS menus and make raising the voltage, both at the processor or memory. But how
This risky kaerena highly dependent on the ability and endurance motherboards, processors,
memory, or graphics cards installed. This voltage increase will Kareena
affect the work of some of the attached peripherals.
The system does not work because the hard drive not detected
This problem often appears in some motherboards. Mistakes happen
not on its motherboard, but the data cable you use. This mistake
usually arises because you use the secondary port and not the primary port
even if you do not use it for the CD-ROM or other drives. In some systems,
motherboard will not detect because of the use of this kind of data cable. Solutions
that can be done is to use the main port on the IDE cable to hard drive sementar
secondary to the CD-ROM drive or the other.
The system does not work when the CPU fan cable is not installed
This usually occurs in some motherboards that have a sufficient level of security
bak. In such a mother board, the system will not work if the fan cable does not
mounted on the appropriate pins of the CPU fan too. This is intended to ensure that the fan
working to protect the processor from excess heat. Well, if you do not install
fan cable to the pin fan power, or even put on one pin, automatic
the system will not work. The only step taken is to install the fan cable
CPU on the appropriate pins.
When booting the system disk fail state
This problem arises when you do not have a floppy drive while in the BIOS feature
still functional. The only way is to go into the BIOS menu and disable features
this one.
The system did not work three primary graphics adapter replaced
This usually occurs on the motherboard that has onboard VGA feature. As will be replaced
graphics card add on, either PCI or AGP berebasis. When setting
not installed in accordance with real conditions, the system will not be able to boot.
The only step that can be taken is to clear CMOS or even
remove the CMOS battery if the jumper to clear CMOS does not exist. This to
force the motherboard back to the default position. After booting can be done, in
BIOS menu and change the primary graphics adapter setting in accordance with the type of graphics card
installed. If you install the AGP-based graphics cards, setting this feature on the AGP
add on.
Locked BIOS Password
BIOS passwords are typically used to protect the user on the computer BIOS settings. And
if you want to reset the password on the BIOS is not too hard to connect
bateray CMOS, with a little trick on Dos, you can reset the BIOS.
The first exit Windows or reboot the computer, start the computer in MS-DOS
mode, use the option "Command prompt only"
At the C: \> prompt, type:
DEBUG
Press Enter. You will see the sign (-) at the DEBUG prompt, type kemudia: o 70 2e
At the DEBUG prompt will be displayed as-o 70 2e. Hit enter, type:
o 71 ff
Hit enter, the last type:
Q Press enter, you will eat out of the DEBUG prompt and return to the C: \> prompt
Now reboot your PC, press del button, and a password to enter the BIOS Setup was
gone.
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