Question about Computers & Internet

3 Answers

Acer 5920-6474 does not power on

When I plug my adapter (wall to adapter plug) green light on adapter is ON. When i connect the adapter wire to the laptop...the adapter light is FLASHING.. and NO POWER sign in the laptop...

no power at all in the laptop. Called ACER Tech and he said my ac adapter is broken or not working.

If anyone has / had same problem let me know...changing adapter solved or not.

Posted by on

  • 2 more comments 
  • brdprince Jan 08, 2009

    OK, i tried to power up with fully charged battery (charged battery on other acer laptop-as mine is dead) still NO power. I was running all time on AC adapter and NOT on battery so i guess the computer is set on the POWER MANAGEMENT SETTINGS of AC Adapter NOT battery so it wont start on battery (some one told me above-dont know if correct).

    ACER Tech says mother board mostly is gone..needs replacement. or ac power jack connection with the mother board. He doesnt know why its not starting with the fully charged battery. Other acer tech send me new ac adapter -tried- same-NO POWER

    Can anyone tell what might be the solution and approx cost..


  • fidders Mar 31, 2009

    i have acer 5920 same exact problem will not power on .green light flicker when plugged into back of laptopunplug it light glows steady Please help i dead in the water

  • Anonymous May 06, 2009

    I am facing the same problem with same laptop.

    I would suggest if anyone can suggest the resolution on the same.

  • Anonymous May 25, 2009

    Same problem,my lappy pooched today with the exact same symptom.



3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

The problem lies with failed smd capacitors grounding out underneath the motherboard on the same side of the board as the cpu heatsink. if you look at the board with the heatsink/fan in the top right hand corner- the culprit caps are in the bottom right hand region under some see through plastic. they are labeled pc144 and pc145.

Posted on Jul 28, 2009

  • vermeulec Jan 11, 2011

    Those particular caps you are talking about look like they are associated with the IR comms. Nothing to do with the power supply circuit at all.


  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

I have the sam problem except I could smell electronics burnout which I discovered to be PR8 (I think is a 20 Ohm resister located close to where the 19V adaptor plugs onto the motherboard). There are a few fets and diodes and regs in this regin. If any of these are shorted then you will get thissort of prob as well. I will check out these caps though!!
Any one know the value of PR8 for sure??

Posted on Dec 26, 2010

  • 1 more comment 
  • vermeulec Jan 11, 2011

    I have now located 2 faulty fets and what seems to be a regulator. I have ordered new parts and will try and fix my computer over the next week or so.

  • Meecowhy Feb 02, 2011

    try here

  • vermeulec Feb 04, 2011

    I ended up buying a second hand motherboard from a computer repairman and fitted it. It fixed my problem.
    When I get a chance I will be fitting the new fets into the old motherboard to see if I can get it up and running.
    It is difficult becuase they now use lead free solder which requires a bit more heat then the lead solder. Special tools are needed to get the heatinto the borad ad te components for rempval and replacement. Luckily I have a friend with the right equipment.
    I will post again if I get the old motherboard working.


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 72 Answers

Does your laptop power up on battery power? Have you removed all external devices (external monitor, keyboard, mouse, any USB device or expansion card, etc.)? Can you remove the CD/DVD drive? Do you feel comfortable removing the hard drive?

First remove everything you possibly can and see if the power adapter works. If it does, try adding and testing the items one by one to see which is causing the problem.

If the laptop will power up with battery and not with A/C adapter, it is very likely the adapter is the source of the problem.


Posted on Jan 06, 2009

  • honest1abe
    honest1abe Jan 09, 2009

    From what you told me, Acer tech is most likely correct. Laptop motherboards are not cheap and replacing them is best done by a professional.

    There are a couple of options you might find attractive. Look on E-bay or Craig's list for someone selling the same make and model with a display problem. In other words, they have a dead or damaged LCD but the rest of the computer works well when attached to an external monitor. If you are lucky enough to find one at a very reasonable cost, you might be able to attach your LCD screen to the other laptop for a working computer. You could even swap out the hard drive with yours and everything should work getting you back to full functionality.

    Another option is to go online or shop locally for a laptop repair shop. Get the rates up front and look for places that offer free diagnostics. They may be able to solder the joint on the A/C connector or even have a used motherboard replacement at a decent price.

    A third option would be to put your laptop on E-bay or Craig's list and sell it as is and use the money with some of your own to buy a new laptop.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


Step by step troubleshooting.
Verify power outlet is good
Verify power adapter is good
verify connection to computer is good
fully charge battery
=======do this
Check power source, plug known good light into AC receptical.
If AC cord has connector to power block verify it is properly seated.
plug adapter into AC outlet
Verify Power is present at power connector with another similar computer or voltmeter. (12V to 20V)
When plugged into computer, charge (not power) indicator MUST light either red, amber, or green. If not, connector on computer may be broken.
leave overnight or until charge light is green
turn on normally.

most likely causes:
- loose connector
- broken wire from power adapter
- broken power plug on computer.
- anything else is probably beyond ur capabilities to fix.

Aug 10, 2014 | Acer Aspire One PC Notebook

2 Answers

New PSU doesn't have four point connection

You can still use this power supply but you will need to purchase a 4 to 8 pin connector . you can find them on ebay etc. You can also use two power supplies, one for gfx card one for PC. I use two. To turn on a PSU without it connected to PC ( just to use it as extra power.) You just have to connect the green wire to any black wire with a wire or paper clip. (At your own risk. Set pins first tape off and turn on by plugging into wall) . Good luck.

Nov 29, 2013 | Acer Aspire Computers & Internet

1 Answer

My emachine em350 battery is not fully charging. it started by charging to 89% then 86% now its at 65% I bought it 5 months ago. What should I do?

Here's how Dell
recommended a reset. First, power down and remove baterty. Second, unplug
AC Power adapter from computer AND wall. Third-Wait till green light goes
out. In my case, went and got coffee and watch a show. Fourth plug adapter
into wall and computer and power up WITHOUT the baterty installed. After
boot up, insert the baterty. It worked?!!?!

Sep 07, 2011 | Acer eMachines 350-2074 Netbook

2 Answers

Sir i have acer 4720Z series laptop. when I plug in the power adapter it show adapter light green. when adapter pin connect the laptop then light show blink and laptop not charging.

Your laptop battery seems to be broken.
To be a 100% sure, can the computer run on only battery?
Try to have the computer plugged in to the charger for a couple of hours without starting it.

Feb 28, 2011 | Acer Aspire 4720 Notebook

1 Answer

I have a Dell M20 and it has stopped turning on. the green light on the adapter is illuminated when plugged into the wall ... then when plugged into the power port on the M20 the green light goes out. ...

I want to say that it sounds like a short in the wires for the adapter. I doubt that a motherboard would cause the light to go out on the adapter. Go to best buy, frys, or some computer store and ask them to let you plug your laptop in to test and see if it is the wire. They surely have a dell being displayed and usually they will let you plug it in with that wire to see if it works.

Dec 27, 2009 | Dell Precision M20 Notebook

1 Answer

Not charging

which green light?

light from the ac power adapter or the light from the battery?

if ac power adapter you are referring to try a diff power wall socket if ac power adapter still off then replace ac power adapter alone.

if battery light is off but the laptop works fine with ac adapter alone try updating the laptop BIOS.

if ac adapter light turns off when it plug to the laptop replace motherboard.

Oct 13, 2009 | Dell Latitude D531 PC Notebook

1 Answer

My Acer Aspire 5920 is not booting up. When the power supply is plugged into the wall, its green LED is solid. As soon as I plug it into the laptop, the light starts to flash. When connected to the AC...

Your motherboard is probably shorting out your A/C adapter, you may need a new motherboard. With a Dell, the A/C adapter light will be green when plugged into the wall but as soon as you plug it into the PC the green light goes off. Which means that the Motherboard is shorting out the A/C adapter...

hope this helps

Sep 08, 2009 | Acer Aspire 5920-6727 Notebook

1 Answer

On the issue with th ebattery on the 1521 inspiron. Took battery out and plugged in still will not power up. Could it be the adapter as well?

On the ac adaptor, look for a green light that will turn on when you plug it into the wall outlet, if its on that means the ac adapter working. If you get a green light on the ac adapter but then the green light goes away when you plug it into the laptop then that means the laptop has a bad motherboard.

If you plug the ac adapter into a wall outlet and get no green light then that means the ac adapter is bad and you would need to get another one.

Jun 21, 2009 | Dell Inspiron E1705 Notebook

1 Answer

2wire HomePortal - green power light blinking

disconnect the power adapter. Reinsert the power adapter directly into the wall socket. Remove any power strips or surge protectors temporarily to ensure that these items are not preventing the 2wire's proper operation. make sure you are using the power adapter that came with the modem. Plug the power adapter into a different wall socket in another room.

Apr 07, 2008 | 2wire HomePortal 1000HW DSL Modem and...

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

4,434 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

David Payne
David Payne

Level 3 Expert

14162 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides