19 July 2012

HOW TO: Troubleshoot Computer Wont Power ON

It is another day to start working your files or just an average boring day to browse the WEB. You plug the wire, you switch on your AVR/UPS ( (See Below for more info), and then you press the Power button in your system unit and  Woah! Nothing Happens!
What will you do if your Computer won't TURN ON? How to solve this problem? What are reasons why it won't starts up? These are few fear frustrating questions that might be speaking out inside your mind. I guess you felt fear, am I right?

Relax...Your Data is Safe!
Worried about your files or data on your PC? Take a breath..inhale...exhale...relax..yes that's it. Don't panic most common reason why a computer won't power on because of its hardware device that fails to give power, or it has a serious problem on the board. While you think that Hard Drive considers a hardware device, but it is a rare situation.

It's true that the most common reason a computer won't start is that a piece of equipment has failed or is causing a problem but that hardware isn't usually a hard drive, the part of your computer that stores all of your files. Temporarily you can't access your data, of course, right? ^_^

Mild Introduction
Before we start fixing the problem, let's review some terms and definitions first.

Definitions
Image Courtesy to  TechRepublic 

1. AVR ( Automatic Voltage Regulator ) - is a piece of hardware device that is designed to maintain energy level automatically to electronic devices. 

2. PSU ( Power Supply Unit) - is the heart of every Computer and it is most important part because, without it, there is no point in using your PC. PSU is a hardware unit device in Computer that is responsible in power upping the computer.

3. UPS (uninterruptible power supply) -
Is an electrical device that provides emergency power to a load when the input power source fails. 

Before solving a problem, of course, you should know the main problem first.

But how can we identify the problem that our PC won't turn on? Sometimes, we assume that we are aware the problem, that we can identify the device cause the malfunction, and that we know how to solve it... but we have to make sure if it is really true because if it is not then, we will be a surprise of the worst outcome.

Identify first the device that causes the problem
To diagnostic a problem, we should test our unit. That is, we have to test every device that deals power (like AVR, Motherboard, CPU, PSU - worse[ Unplugged Wire ])

[SOLUTION] Steps in Troubleshooting Procedure
Take note: It is for the UNIT that receives no POWER signal.

1. First, check your wire. It must be plugged into 110-220WATTS socket, but it depends on in your UNIT. Ideally, it's in the range of 110-200WATTS. Then test the power cord also.

2. If you are confident that there is no problem with the wire in the socket, then try to check the next UNIT ( AVR/UPS). You can use other AVR or UPS to test it with your System Unit. ( in my experienced. My AVR  performed unusual function that sometimes it gives me a mild shock after from giving my electrified, I then thought it was the biggest problem. So I replace it a new one)

Taken from  Buy A new Computer 
3. If you are confident too that your AVR/UPS is performing 100%, then you must test the next UNIT - PSU.

4. Here, it's a bit complicated because you will open up the case and get the PSU then you will test your system unit to other PSU device (sounds painful). If another PSU is working well in your system unit, then the culprit here is your PSU. So the solution? Buy a New PSU one :)) 

 (guess...yes, I bought a new PSU, and it is costly whew, but it is worth to buy because I finally fix my PC hardware turn on problem)


5.If your AVR/Power Cord/PSU is working properly then try to test the power button on the front of your computer's case. Sometimes, your power button is damaged, and it fails to power on. Solution? Replace the power button if it fails your testing. 

6. Finally,  If you are really confident that your power, power supply, and power button are working 100% well, it's likely that there is a problem with your PC's motherboard and it should be replaced.

Important Tips: 
  • Check and try to lose and put back the wire connection in every unit. If it does not work then proceed to other solution.
  • Verify that the power supply voltage switches setting. It should match the correct input voltage for a power supply.
  • Try to test the power cord if it is not working.
  • Consult computer technician to do checking and testing your Unit.
Does it help you? Comment here for some problems issue. If you find this post useful, please share it with your friends...Like,Tweet,+1 etc. :)) Thanks. 
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