Question about Toshiba Satellite A20-S207 Notebook

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Power supply sometimes turns off

Sometimes when I'm using my computer the power supply will turn off out of nowhere, is there any reasons for this to be happening?

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Re: Power supply sometimes turns off

Start by checking your power supply ,check the condition of the cord and the connection between the cord and input socket.

Posted on Jul 29, 2007

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Internet Connection Issue: How to do a Sequential Power Cycle

Most of the time we worry about why our Internet Connection suddenly goes off without warning and when this happen, we find ourselves nowhere to run for help or cramming to call a technical support line ending up paying for a simple support such as a Sequential Power Cycle. <br /> Internet Technology backbone is based on transmission signal. Signals can sometimes "time-out" causing your modem not to detect connection thus kicking your Internet off. This sort of problem is so usual that most people tend to overlook it. That is why I'm writing this tip as sort of a "First-Aid" for non-technical people to patch their Internet "time-out" problems. <br /> <br /> How to do a Sequential Power Cycle: <br /> <ol> <li>Turn off the Computer. (laptop or desktop)</li> <li>Turn off the Router (if you have any). Unplug it off the power supply.</li> <li>Turn off the Modem and make sure to unplug it off the power supply.</li></ol> <br /> Leave the devices off for at least a minute. Then turn them back on sequentially. <br /> <ol> <li>Turn the Modem back on. The modem will do a self test to check if all connections are working. Leave it for at least a minute to initialize.</li> <li>Turn the Router back on. Let it initialize properly and wait at least a minute before going to the next step.</li> <li>Turn the Computer back on. Allow it to fully load all the startup programs and services.</li></ol> <br /> After doing the above steps. Check if you can browse the Internet using your preferred browser. Hope this helps.

on Dec 25, 2010 | PC Laptops

2 Answers

My ASUS Eee PC 1005P won't turn on. This had been working up until 4 days ago when I left Australia to Bali. When I pressed the power button the power light would come on but there would be no fan...

Try turning it on with the battery without the charger. Then try turning it on with the charger without the battery. If it still doesn't turn on either way, it's already a problem with the laptop's motherboard. If your laptop is still in warranty, you should have it serviced. Otherwise you need to bring it to a repair technician.

Apr 04, 2011 | ASUS PC Laptops

2 Answers

I periodically can't get my computer to start running.

this occurs mostly due to static charges. perform the following:
1. Turn off the PC and disconnect the power supply.
2. Remove the battery from the notebook.
3. Press and hold the power button for 45 seconds.
This will discharge the static charges from the pc. Now check for the issue.

May 24, 2010 | HP Pavilion dv1000 Notebook

2 Answers

My computer shuts off randomly by itself sometimes

Shut-downs can be caused for "all manner of reasons" (including overheating).
The cause of over heating can be due to
1) fault in power supply.change the power supply.
2) Any of the internal wire connections are got turn of your computer.then unplug it from main power outlet.then remove all the exaternal wires connected to the computer.then if its laptop open the back of the laptop and check out internally if any wire of hard disk,power supply is got loose.if its proper then also remove the wire and reconnect it.but if its normal cpu and not laptop then open the cpu by removing screws and diconnect all wires and reconnect it again.then connect all the external wires as it were before and check out.
3) if its laptop then it can also be the battery issue.if the battery is not charged then also this can some cases battery is fauty so it shows its charged but actually not replace the battery and check out.
This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

Jan 13, 2010 | Dell Latitude 100L Notebook

1 Answer

My hp pavillion dv 9000 will not turn on, it is plugged in and the charge light is on, but it will not turn on. I have tried taking the battery out and just using the outlet, but that doesn't work either.

The power supply could be the problem.
The fact that some light go ON, doesn't mean its working properly.

Another reason could be the memory.
Sometimes they get bad as well.
Remove all the memory from your computer.
You will hear a sequence of beeps.

If there is no beeps, then power supply for sure.
A replacement will bring back joy.

Don't forget to rate this answer if it helps.

Dec 04, 2009 | PC Laptops

1 Answer

I have medion akoya s5610 laptop. Power light bottom left comes on when conected but nothing else happens, just black screen, no attempt to boot.No light on power button either

  1. Believe it or not, the number one reason why a computer won't turn on is because it wasn't turned on!
    Before starting a sometimes time consuming troubleshooting process, make sure you've turned on every power switch and power button on your computer:
    • Power button/switch on the front of the computer
    • Power switch on the back of the computer
    • Power switch on the power strip, surge protector, or UPS (if you have one)
  2. Verify that the power supply voltage switch is set correctly. If the input voltage for the power supply does not match the correct setting for your country, your computer may not power on at all.
  3. Check for disconnected computer power cable connections. A loose or unplugged power cable is one of the top reasons why a computer doesn't turn on.
  4. Perform a "lamp test" to verify power is being provided from the wall. Your computer isn't going to turn on if it's not getting power so you need to make sure that the power source is working properly.
    Note: If you have a multimeter or another electrical testing device you are welcome to use that to test your wall outlet (and power strip, surge protector, etc.). The lamp test is useful if you don't have an electrical testing device.
  5. Test your power supply. At this point in your troubleshooting, it's very likely that the power supply unit in your computer is no longer working and should be replaced. You should however test it just to be sure. There's no reason to replace a working piece of hardware when testing it is fairly easy.
    Replace your power supply if it fails your testing.
    Important: In the huge majority of cases when a computer isn't receiving power, a nonworking power supply is to blame. I bring this up again to help stress that this troubleshooting step should not be skipped. The next few causes to consider aren't very common.
  6. Test the power button on the front of your computer's case. It's not a very common point of failure but your computer might not be receiving power because the power button on the front of your PC is damaged and is not actually turning your computer on.
    Replace the power button if it fails your testing.
  7. Replace your motherboard. If you're confident that your wall power, power supply, and power button are working, it's likely that there is a problem with your PC's motherboard and it should be replaced.

Nov 27, 2009 | Medion md40298 Notebook

3 Answers

Will not charge

With both above posts above included I want to add my experience with 3 Toshibas.

1. The A75 series was very prone to the power supply becoming loose on the motherboard. Those who are moderately good at DIY projects can resolder this. There are good photos elsewhere to show how. A loose connector will cause the power LED on your computer to flicker, sometimes the machine will turn off, etc. because the AC supply is unpredictable. Unfortunately, Toshiba and others may sell you a NEW power supply, which then can give you a second, and different, problem. The new power supply may not produce enough AMPS for the A75

2. The A75 series is VERY energy hungry and must have a power supply of 19v and 6.3 AMPS. The amps is CRUCIAL. The newer Toshibas run on 3.4 amps and a replacement power supply of the wrong size will show a green LED for power, it will charge your Battery in the system off( i.e computer plugged in but turned off mode) but it will not allow windows to run, even though it will allow you into BIOS setup. This combination means you have to charge the battery in the OFF mode and then when the computer runs, it is actually running from the battery, not 120v AC. The battery then runs down and the sytm shuts off.

So look at the Toshiba Label on the bottom of your laptop and read the correct voltage and AMPS!!! The 6.3 AMP power supply is BIG (6.5x2.5x1.5 inches) and is available new online for about $27.00. This problem solved my power problems on both an A75-S2292 and an A25.

Good luck

Sep 28, 2009 | Toshiba Satellite A75-S229 Notebook

1 Answer

Computer shuts off

Does it feel hot?

Sounds like it's overheating. It's very common with this model.

Let me know so that I can diagnose it correctly.


Feb 25, 2009 | HP Pavilion zd8000 Notebook

1 Answer

Does not power up

It's a dreadful way to start a day - you press the power button on your computer and nothing happens. Do not fear because all may not be lost! Follow these simple steps to determine why your computer won't turn on.

Note: It is very important to troubleshoot any issue beginning with the most likely and easily testable problem so be sure to follow these steps in order.
Difficulty: Average
Time Required: Anywhere from 10 minutes to a few hours or more depending on why the computer won't turn on
Here's How:

As silly as it may sound, the number one reason why a computer won't turn on is because it wasn't turned on! Before starting a sometimes time consuming troubleshooting process, make sure you've turned on every power switch and power button associated with your computer:
Power button/switch on the front of the computer's case.
Power button/switch on the front and/or back of the monitor.
Power switch on the power supply on the back of the computer.
Power switch on the power strip or surge protector (if you have one).

Verify that the power supply voltage switch is correctly set. If the input voltage for the power supply does not match the correct setting for your country, your computer may not power on.

Check for loose computer and monitor power cable connections. A loose or unplugged power cable is one of the top reasons why a computer doesn't turn on.

Perform a "lamp test" to verify power is being provided. Your computer isn't going to turn on if it's not getting power so you need to make sure that the power source is working properly.

A damaged power supply could be preventing the computer from being properly powered.

Do a quick test of the power supply by holding your hand behind the power supply fan located at the rear of the case. If the power supply is working, you should feel air from within the case blowing against your hand. If not, you may need to replace the power supply.

Tip: Is the power light on the front of the computer's case on? If you've turned the power switch on but the light is off, this is another good indication that the power supply is the cause of this issue.

Over time, internal components and the cables that connect them can wiggle loose which can often times result in a computer unable to power on. Try reseating the following and then try to power on the computer again:
Reseat the internal cables
Reseat the memory modules
Reseat the video card
Reseat other expansion cards

Reseating the CPU may also be necessary but should only be attempted if the reseating of all other components is not successful. This is due to the fact that this process is a little more involved and can run a small risk of damage to the CPU. This isn't a big concern if you're careful, so don't worry!

Check for causes of electrical shorts in the computer case. This is often the cause of the problem when the computer powers on for a second or two but then powers off completely.

Most monitors have a small light next to the power button that can change between various colors. If the screen is blank, this light is your main source of information about the monitor.

If this light is not on at all, double-check the power switch and connections (Steps 1, 2 and 3) and also make sure the monitor cable is securely plugged in to the video card port on the back of the computer case. If the light is still off, replace the monitor. If it comes back on, try starting your computer again - a loose or unplugged monitor cable may have been the issue all along.

An amber or yellow power light simply means that the monitor is not receiving any information from the computer. In and of itself, this doesn't tell us much.

On the other hand, if the light is amber or yellow, the computer power light is on, and the hard drive is active (making familiar sounds and the hard drive activity light on the computer case is blinking), the computer is probably starting normally but the video card is not sending information to the monitor. Replace the video card.

Beep codes (see Step 11) usually sound when a video card has malfunctioned but this is not always the case.

Is your computer making a beeping sound? Sometimes a computer will turn on just enough to play a series of beeps from the speakers.

These beep codes play in particular sequences and represent a specific problem that your computer is having. Troubleshoot the beep code to figure out what it's saying and then service the computer as necessary.

Let us know how things turn out and don?t forget to rate the posting.

Jan 27, 2008 | IBM ThinkPad T22 2647 Notebook

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