Motherboard

A motherboard failure on a laptop that is out of warranty would usually mean that… it’s time for a new laptop. The price of a new motherboard is usually higher than the current value of the laptop.

Symptoms:

Plug in the power adaptor and try to start the laptop.

  • Nothing happens.
  • The “ON” light comes on, the fan spins, but nothing on the screen (black) and you can’t hear the HD working after 10-15 sec.
  • The “ON” light comes on, the fan spins, but after a few seconds the light goes off.
  • After pressing the “ON” button the screen stays black and you can hear a quiet high-pitched sound coming from the laptop.

Troubleshooting:

Look for the “lid closed” switch and try pushing it a few times. It’s usually a small switch near the hinges that is pressed when the lid(the screen) is closed. Sometimes these switches get stuck in the “lid closed” position that results in black screen(no backlight) or non-starting laptop. Also some laptops have a magnetic switch (newer Dell’s and most Apple’s), that doesn’t get stuck.

Test the laptop with another power adaptor. Although not common, the adaptor can fail and not supply the needed voltage even if it has a green “power on” light that lights up when you plug it in. Even if you measure the output voltage and it’s OK, the adaptor may have failed and wouldn’t supply that voltage under load (typically 3.5A to 6A). You can use an universal adaptor or go to an independent repair shop and ask them to check it (some shops will try to charge you for “estimate” for doing just that, so ask in advance).

Reset the RAM. See the article on RAM failures for instructions.

Remove the hard drive and the CD/DVD if it’s easily removable.

Finally try to start the laptop again with only the power adaptor plugged in and with the RAM reset and all removable components and the battery out. If there’s still nothing on the screen, you will need to bring it to a repair shop.

156 Comments

  • #156 by snyper October 28, 2014 at: 5:00 am

    I have Acer aspire E1-531 it can’t charge again,I have tried it with so many adapters but still refuses to charge please help out what can I do about dis

  • #155 by Vincent October 27, 2014 at: 12:59 am

    Hello,

    I have a Medion MD96970 Laptop and the problem i have with it now is that the sceen refuse to come up. The power button light is on, the fan is working, but the screen remain black. I’ve tried all the tricks of removing the battery and the memory but still remain the same. Pls help?

  • #154 by Vincent October 27, 2014 at: 12:55 am

    Hello,

    I have a Medion MD96970 Laptop and the problem i have with it now is that the sceen refuse to come up. The power button light is on, the spining, but the screen remain black. I’ve tried all the tricks of removing the battery and the memory but still remain the same. Pls help?

  • #153 by Femi October 19, 2014 at: 8:12 am

    My Dell Ispiron 3521 is giving problem coming up. When I press the on button, the fan comes up and some other indicators and it do gives a tick sound but won’t come up. What might be the issue pls…

  • #152 by moses Ay October 12, 2014 at: 3:38 am

    try a known good charger. and reseat your battery .

  • #151 by moses Ay October 12, 2014 at: 2:44 am

    my acer aspire turns off immediately I turn it on , no booting ….I have change the mother bard to a working board but the second mother board now does the same , I have change the dc jack to a new one, still the same . please what can I do ……reflow has been done but no way ….and this is a working motherboard before in a bad case.

  • #150 by Pandanix September 4, 2014 at: 12:42 am

    Good day to everyone. My friend came to me to repair his Dell laptop because water has spilled over the laptop a few days ago. Before he bring it to me, he tried to turn it on if it still works (NOT RECOMMENDED, as water conducts electricity and may damage the circuitry of the motherboard) but to no avail. Now I disassemble it completely and clean/dried the wet parts with a damp cloth and turn it on. LED lights lit up, but fan and dvd drive doesn’t spin, and no display. I think that the problem is with the motherboard because my friend turn it on, with wet motherboard, before bringing it to me. I tried the hard reset (pressing the power button for 60 secs with battery and ac adapter disconnected) but to no avail. Can someone have a get around to this problem?

  • #149 by Md. Mostaq Ahmed August 27, 2014 at: 11:45 am

    My Clevo W243HUQ power button not working. But, if I remove all power (Battery & Adopter) and reconnect. Then pc automatic turning on. But then also power button not working. Please some one help me to fix this problem.

  • #148 by dupe August 3, 2014 at: 10:32 pm

    Help my hp 250 is less then a month but it giving me a problem
    when the switch is on the screen is always black, the caps lock is on and it shows charging even when the charger is not connected. Pls what can i do

  • #147 by javier July 26, 2014 at: 5:18 pm

    toshiba l955-s5330 power ligt ligts orange 5 times and then goes off