Question about Toshiba Satellite L455D-S5976 Notebook

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When AC adapter is plugged, (no batery no ram, no hDD) ac led blinks green, and when pressed several times, power led blinks for a split second, but computer never gives any signal of life.... same behavior with ram, batt and HDD installed....

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  • Expert
  • 140 Answers

Defective motherboard. Buy a new one

Posted on Nov 04, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

harvester3
  • 181 Answers

SOURCE: Toshiba Satellite A105

The most common problem on these units is the ac connector solder joints break away from the motherboard. If you're sure the ac adapter is working, and the correct one, and it's not charging the battery (assuming the battery is good), it's most likely the problem. They don't have to appear loose to be loose.
Otherwise, it's motherboard time, or a loose screw, etc has caused a dead short on the board.
Good luck, if you have additional info, let me know.

Posted on Feb 09, 2008

  • 36 Answers

SOURCE: Laptop stuck in sleep / hibernate mode??

Try holding the power button down for at least 10 seconds, that should turn off the laptop completely. Then press the power button again to turn it on. Hopefully it will boot up.

Posted on May 19, 2008

SOURCE: Toshiba Satellite L25-S119 Does not Power on

The Toshiba laptops are famous for the power jack wriggling loose from the motherboard. Once it gets so loose the adapter power stops and it uses battery power until that runs out. You can usually move the power cord around until it starts working again but this is just a temporary fix and the jack will eventually need to be replaced. Most computer shops charge between 100-250 bucks for this service.

Posted on Jul 17, 2008

  • 81 Answers

SOURCE: blinking AC light with/without battery, computer shuts down

I want to try a very simple thing, cause it happened to me, while I am working on my computer , it shut down unexpectedly... cause the processor is working with its full performance and no enough cooling around the laptop. so while I move to other place and also I raise the laptop a little bit from the back to let the fans (bottom of the laptop) works perfectly .
try to open it again and do so.... may be it is a so simple thing that was far from your mind like I was before... good luck

Posted on Nov 30, 2008

cheap to fix
  • 404 Answers

SOURCE: Flashing Charging Light on AC Power

shortage on the motherboard, needs new motherboard.

Posted on Mar 09, 2009

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1 Answer

Why won't my computer boot up?


does not sound easy . Try holding power button in for 30 seconds and then try normal power up. Is the AC adapter plugged into laptop it may have a flat battery. If the Ac to DC adapter is failing to charge the battery this could cause a flat laptop battery and cause the symptoms you are experiencing.

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When ac adapter is plugged in, only AC led blinks green, (no batt, no ram, no HDD) and after pusshing the power button several times, power led blinks greeen for a split second, and the computer never...


Try using another ac adapter, sounds like the adapter is failing. You can either ask if one of your friends has the adapter with the same connector and voltage (check that the wattage of the adapter is sufficient) or if someone has a universal ac/dc adapter for the test. If the laptop starts normally wiht another adapter, then get a replacement adapter and you are good to go.

Oct 10, 2013 | Toshiba Satellite L455D-S5976 Notebook

1 Answer

Wont start up


Remove the battery and AC Adapter cord, and press and hold the power button for 30 seconds. Then, without replacing the battery try plugging in your AC Adapter to see if you get any love. If that doesn't work, remove the AC adapter, reset the board again, and this time hold the power button down as you plug in the AC Adapter cord. If you still don't get any lights, you could try removing your memory, reset the board, replace the memory, plug in the AC Adapter, and try one more time.

If all of this fails...you should take advice from experts,call at-http://www.vtechsquad.com

Sep 05, 2012 | Acer Aspire 7750G-6662 - Core i5 2.4 GHz -...

1 Answer

Basically i plugged in the ac adapter to it, pressed the power button and the power light comes on for 2-3 seconds then the power light shuts off. lcd screen never turned on or show anything, fan never...


>>> Please leave feedback so I can continue helping You & Others
Hi,

The middle blue led is the charging indicator, sounds like you have (at least) a bad battery, remove it, plug in AC and try again, if no good, remove the HD and repeat, if no good, remove/replace the ram and repeat, if still no good, your mainboard is cooked.

Thanks,

Adam.

Feb 19, 2011 | HP Pavilion DV9429US Notebook

2 Answers

My Laptop doesnt start at all . I dont know what


1. remove all ext peripherals
2. remove battery
3. check first the ac adapter if it has led on (make sure ac adapter is not connected to the laptop)
4. try any other wall socket check if ac adapter will led stay on
5. if ac adapter stayed on then connect to laptop (without the batter)
6. after connecting the ac adapter to laptop check if the ac adapter led turned off, if yes then check ac adapter laptop pin on the side if is loose or damage.
7. if ac adapter stayed on after connecting to laptop press now the power button on the laptop just once. check if the power led on laptop will turn on (check if power led stays on or it blinks amber)
8. if it blinks amber then remove all CRUs such as dvd drive, memory, hard drive and wireless cards. put them back one at a time. make sure you turn off laptop when putting removed hardware. this will check and isolate which causing the power led to blink.
9. if the power led stays on then turn it off again then wait a couple of seconds then press and hold on Fn key then press power button. wait for about 5 minutes while the power led is steady on, until you hear beeps once you hear beeps it means that LCD has problems. try then connecting laptop to an external monitor if it shows display there. press on Fn + F8 to toggle the display from LCD laptop to the ext monitor. if no display replace the motherboard. if it has display replace LCD.

Oct 15, 2009 | Dell Inspiron 6000 Notebook

1 Answer

Pavillion dv2025nr Blank Screen, but all LEDs on.


VGA card problem..that's what tech told me & changed it 3 times...but still laptop goes off.(exactly like u described)...they finally said need new motherboard??? so VGA will not do this again!!!! I don't know, If I change motherboard...will this happen again...is it worth it??? My pavillion dv 2000 is only 1.5 years old..was expensive??/

Oct 01, 2009 | HP Pavilion dv2000t 14.1" Notebook Laptop...

1 Answer

Dell inspiron 5150 do not come on when the power button pressed


If you remove the battery and disconnect power cord, then hold power button for 20 seconds, then reconnect power cord but do not re-insert battery, and the unit powers on okay, the problem may be your battery. If there is still an intermittent problem, the power connector inside the unit may be loose and need re-soldering, or you could have a bad power supply.

May 17, 2009 | Dell Inspiron 5150 Notebook

4 Answers

HP DV2036ea i have a blank screen on the computer


Hello there

Description.

When pressing the notebook power button nothing is displayed on the screen or display. The cause of this problem may be a failed AC adapter, the memory modules (RAM) need to be reseated or a failed notebook system board component which will require an HP certified repair.

Below steps will assist in identifying the cause of the problem and suggest the best solution. Test the AC adapter Follow the steps below to determine whether the problem is related to the AC adapter or your notebook system board.
  1. Remove the battery and disconnect all external devices from the computer.
  2. Hold the Power button for several seconds, with all power sources removed. This drains residual power from the system, and may correct many problems.
  3. Connect the AC adapter to a wall outlet and plug the other end into the computer.
  4. Press the Power button to start the notebook PC.
If the notebook does not start or the display is blank then check the power indicator light or power socket LED. Check the power indicator light or power socket LED On newer models of notebook PCs, there is an LED or indicator light around the power socket on the notebook. Check to see if this light is on or off, when the notebook is plugged into AC power.The power indicator light or power socket light should turn on when the AC adapter is connected.

  • If the light does not turn on then the problem is most likely related to the AC adapter or the electrical source in your home or office. Go to the Light does not turn on section on this page.
  • If the light does turn on but the notebook does not start or the there is a blank screen then continue to the Light does turn on but the notebook does not start section on this page

The light does not turn on when the AC adapter is connected If the power indicator LED is off, the AC power adapter may need to be replaced. To determine if the AC power adapter needs to be replaced follow the steps below:
  1. Ensure that the AC adapter is plugged directly into a known working wall outlet.
    NOTE: To check the wall outlet, plug in a different known working device like a light, radio etc.
  2. Check all of the following connections:
    • The connection from the power cord to the wall outlet.
    • The connection into the power adapter from the power cord.
    • The connection from the AC adapter to the notebook power socket.
  3. Press the power button again to test the notebook PC.
If the power indicator light still does not turn on, then the AC Adapter needs to be replaced. Contact HP Service and Support for further assistance. Power socket LED or power indicator light is on but the notebook does not start If notebook power indicator light (LED) is on, the AC adapter is working correctly. The problem is a result of a hardware failure in the notebook itself. In some cases, reseating the memory module (RAM) may solve the problem.

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1 Answer

Gateway 400SD4 Power Problem


Faulty Battery.
Get a new one.


If that is not the problem check the ram.

Jul 01, 2008 | Gateway 400SD4 Notebook

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