basic pc troubleshooting part 1

8/4/2019 Basic PC Troubleshooting Part 1

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Basic PC Troubleshooting

Basic pc troubleshooting

Vanishing Files

No Display

Long Beep

Sudden Halt

Program wont Execute

No audio output

Wont Detect USB drive

Windows wont load

No hardisk detected

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Objectives:

After the period, the students will be ableto: Enumerate the facts on pc troubleshooting.

Familiarize the basic flowchart of pctroubleshooting.

Familiarize the different technical details ofthe components of the motherboard.

Determine the problem of the pc using beepcodes

Listen attentively during class discussion


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Facts on Troubleshooting


1. Buy from a quality vendor with long warrantiesand a reputation for good service. Any PCmagazine, such as PC World or PC Magazineconducts truckloads of product reviews andvendor reviews

2. Consider buying extended warranties , especiallyif they include on-site service

3. Keep all manuals , CD Drivers and documentationespecially for the motherboard


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4. No matter what weird behavior your computerdisplays, do the obvious first

a. Rebooting cures most windows ailments

b. Check all the cables and power cordsc. Pay attention to error messages and write

them down word for word . If you call atech support , this is essential information.

5. Take it slowly and logically; often common senseis enough to see you through


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6. Figure out if you have a software or hardwareproblem. Most of the time it will be software.

7. If it is hardware problem the CPU is least likely todevelop terminal disease , hardware problems aremost likely to take place in the memory and harddrives.

8. If it is software problem, uninstalling and then re-

installing a problem application often cures theproblem

9. Always keep a system recovery disk in CD or in

floppy disk.


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Universal Troubleshooting Process1. Define your symptoms

Write down as many symptoms as you can2. Identify and isolate the source

Use the process of elimination. Make only onechange at a time.3. Replace

Use anti-static boxes for storage4. RetestSystem must be reassembled carefullybefore testing it
http://presentation/process/Computer%20Troubleshooting%20and%20Diagnostics.ppthttp://presentation/process/Computer%20Troubleshooting%20and%20Diagnostics.ppt


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Basic Troubleshooting Flowchart


a

osloading

isos ok?

isolate hdmajor components

isolate appsoftware

start

Yes

No

restart

start

check biossettings

isPOST ok?

start

aYes

No

BIOS loading


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Technical Details


Before you could actually troubleshootanything or solve any problem not just withcomputers, you must able to understand or

master how does the device work or whatmakes it tick.


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Technical Details


Memory1. When buying RAM take note of the

size and the speed.

2. Extended memory is all memory afterthe first 1MB of RAM.

3. Memory latency is the amount of time

it take to locate the data stored.

4. DDR have 240 pins, the diff. betweenDDR2 and DDR3 are speed and formfactor


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Technical Details


Memory installation


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Technical Details


Memory installation


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Technical Details


Memory Trouble Symptom

1. One long continuous beeps

Solution

1. Clean the RAM pins and RAM slot1. Used eraser to clean the RAM pin2. Used volatile liquid and cigarette silver to

clean the RAM slot

2. If defective, replace the RAM card Check the type of RAM for compatibilityreason


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Technical Details


Memory Trouble Symptom

1. The computer will always restart

Without a message talking about virtual memory After executing the DOS command (black screen)

2. The computer will suddenly halt and blue screenappears with some messages

Solution

1. Replace the RAM card


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Technical Details


Video Card

1. The video card is an expansion card that allows thecomputer to send graphical information to a video

display device such as a monitor or projector.

2. The Video Card is Also Known As: graphics card,graphics adapter, video adapter
http://pcsupport.about.com/od/componentprofiles/p/p_monitor.htmhttp://pcsupport.about.com/od/componentprofiles/p/p_monitor.htm


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Technical Details

Video Card Installation

a. Connect the video card to the AGP slotor PCI Express slot

b. Install the video card driver

Driver is included when you buy anew video card


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Technical Details

Video Card Troubleshooting

a. Symptoms: One long and two short beeps The computer will not start and the

monitor power LED is color orange.(due to drivers conflict, improperconnection)

b. Solution:

a. Clean the pins of the video card(clean the AGP or PCI slot is highlyrecommended)

b. If defective, replace the device


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Technical Details


Microprocessor

a. Processor is very hot and needed somespecialize cooling system, like fan andheat sink.

b. There are only two types of receptaclesinto which processor can be inserted:either a socket or a slot. New processoruse Socket LGA775

c. Two famous manufacturer of processor are

Intel and AMD.d. New microprocessor is using 64bit of datae. Processor speed is measured in HZ


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Technical Details


Microprocessor Cooling System

Troubleshooting

a. Symptoms:1. Start the computer

2. Load the OS3. Suddenly it hang-up (no blue screen)b. Solution:

1. Check the cooling system of theprocessor (fan entangled with thewires)

2. If defective, replace itc. The system will stop working to prevent

further damage


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Technical Details


Microprocessor Cooling System

Troubleshooting

a. Symptom:1. The computer will not start

b. Solution:1. Do the process of elimination2. Replace the processor if found

defective


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Technical Details


Microprocessor installation


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Technical Details


Microprocessor installation


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Conclusion

There are methods or ways to preventtroubles of your pc

If problem exist, be patient and relax todetermine the symptom and diagnose theproblem

PC trouble has unique indicator

Knowing how device works will give us anidea how the device behave.


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Process of Elimination

Requirements

The power supply is ON but the system unit

dont boot-up

No beeping?



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Process of Eliminationstart

Power SupplyMotherboard

RAMVideo Card

Beep once?

Turn-On

X

A

A

Turn-Off

No

Yes

Turn-On

One long & twoshort beeps?

Video Card isDefective

end

B

Remove the VideoCard

Turn-Off

No

Yes

B

Turn-On

ContinuousBeeping?

RAM is Defective

end

Remove the RAMCard

Turn-Off

No

Yes

CPU is defective



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Process of EliminationX

Turn-On

Beep once?

That componentsis defective

end

Connect the othercomponents one

by one

Turn-Off

Yes

No

basic pc troubleshooting part 1

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