Question about Toshiba Sattelite A105-S2071 Notebook

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The mysterious ticking motherboard

My laptop is the s2091 but it wont turn on at all
i have checked the power adapter and its good , i checked the fan and its good
the motherboard is making a faint ticking sound and i think ,that it whats causing the problem
now i took everything off the motherboard and it still makes that faint ticking sound (ie there is no hard drive, fan, processor, or any other drives on the board) and it still ticks
please if you know what the problem is, please help

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  • icepanther Oct 22, 2007

    what does a capacitor look like

  • icepanther Oct 22, 2007

    There are none on this board at all

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  • 1,601 Answers

A bad capacitor may be the problem.

Posted on Oct 22, 2007

  • 3 more comments 
  • Thomas Christopher
    Thomas Christopher Oct 22, 2007

    they are small and looks like small cans. there are probably 25 to 50 of them on a board

  • Thomas Christopher
    Thomas Christopher Oct 22, 2007

    bad ca

  • Thomas Christopher
    Thomas Christopher Oct 22, 2007

    bad caps

  • Thomas Christopher
    Thomas Christopher Nov 04, 2007

    Then it must be the hard drive controller. The question is how do you fix it. Unfortunately, controllers are integrated into the motherboard and the only way to fix it is to replace the motherboard.

    Sorry for the bad news.

  • Thomas Christopher
    Thomas Christopher Nov 06, 2007

    Did this post work for you?
    Please post an answer so we can help you further.
    If it worked please rate this post as solved.
    Thanks,

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These tips may or may not help depending on the type, if any damage done to your system....

Laptop is dead. How to troubleshoot the problem.
In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
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What you can do in this case?
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2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.

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First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint.
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In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
Try removing battery, hard drive and DVD drive and turning on the laptop without these components.
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Finally, disassemble the laptop and removed the motherboard.
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2. CPU with heatsink and cooling fan.
3. Known good memory module.
4. The power button board witch you need to turn on the system.
5. Working DC power adapter.

Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
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Here are some troubleshooting hints, see if these will work for you. It is hard to knnow what to do in these situations because there is no way of telling what key combinations etc. were hit.

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In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
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What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
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3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.

OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
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If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack.
Example 2. When you plug the DC power adapter and press on the power button, the laptop starts making normal noises, the LEDs work properly but noting appears on the screen. The laptop will not start.
First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint.
If there is no image on the laptop LCD screen, test the laptop with an external monitor. Connect an external monitor to the VGA port on your laptop and turn the laptop on. You can toggle video output between the internal LCD screen and external monitor by pressing Fn and F4 keys simultaneously on HP laptops, Fn and F5 keys on Toshiba laptops, Fn and F7 keys on IBM laptops. Other laptops may use different key combinations.
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In my case, both internal and external monitors were absolutely dead. Neither of them had image. That means the problem is not related to the LCD screen or the video cable. From my experience I know that this problem could be related to the laptop memory.
Try reseating the memory module, maybe it’s not making good connection with the memory slot. Try cleaning contacts on the memory module with pen eraser. Try moving the memory module into another slot. Try replacing the memory module with another known good module, it’s possible that your original module is dead.
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In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
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Also, try turning on the laptop with an external monitor when the video cable is unplugged from the motherboard. If the laptop start with video on the external monitor, apparently there is something wrong with the laptop display panel.
Finally, disassemble the laptop and removed the motherboard.
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2. CPU with heatsink and cooling fan.
3. Known good memory module.
4. The power button board witch you need to turn on the system.
5. Working DC power adapter.

Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
At this point I’m 95% sure that the motherboard is dead. CPU failures are not very common, so it must be bad motherboard.

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