Tip & How-To about Computers & Internet

Acer 5420 Extensa no power lights on and off

My kids Acer extensa would not power up, front power lights go on for a couple of seconds then go off leaving us with a dead laptop ready for the trash, I followed the tip to disassemble the laptop completly and reasssemble my thinking was why not its dead anyway? so I did and guess what it worked. I think the biggest reason this worked is because of the removal of the battery CMOS caused a hard reset therefore clearing Main board boot logic this allowed for laptop to boot and work again. So far so good its been 10 days. The first tests I made where to check the power supply for voltage with a digital voltmeter and paper clip to probe the center of pin terminal for 19.0 volts dc. My second test I made prior to dissasembly was removal of battery, hold down the power button for 30 seconds for a soft reset. the laptop should power up with the battery taken off the laptop in my case it did not, so I said lets dissasemble, while I was there I removed the battery that retains CMOS memory on the main board and checked for over 3.0 volts that tested ok. I did not see any abnormal wiring or mainboard issues or odors! all visual looked perfect so I proceeded to reasemble and laptop booted. All tips vary by laptop and if problem is software or hardware but this one worked for me so far, thanks for all the great tips out there keep up the good work!

Posted by on

Computers & Internet Logo

Related Topics:

Related Questions:

2 Answers

My acer laptop extensa 5620 will not turn on,it is totally dead with no lights showing and no sound coming from the laptop, i have taken the battery out and plugged in the power cord and still nothing

My Laptop wont turn on [Solved] - CCM

ccm.net > Forum > Hardware > Laptop
Nov 13, 2015 - Hello,i need help.my acer extensa 5630ez wont turn on.i tried charging it for hours.it still wont turn on.when its plugged in, the battery led light ... My acer laptop wont start up!!! [Solved] - CCM
Jan 10, 2015
Connecting an external monitor to my Acer [Solved] - CCM
May 3, 2013
Mass storge controller acer extensa 5620 [Solved] - CCM.net
Apr 27, 2011
More results from ccm.net

Acer extensa won't boot. FIXED !! - YouTube

? 0:28
Apr 1, 2011 - Uploaded by Gen
Watch the fix i used here http://adf.ly/Pnk8u Acer extensa 5420won't boot. ... MADE THE LAPTOP HOT AND TURNED IT ON AND IT WORKED!

Acer Laptop Stops Powering Up- Wont Turn ON - Tech Support Forums ...

www.techimo.com > Forum > PC Hardware and Tech > Technical Support

Jun 5, 2010 - 11 posts - ‎3 authors

Dec 21, 2015 | Acer Extensa 5620 Notebook PC

1 Answer

Acer Extensa 5235 wil not power on

The solution to your problem lies in one of the following three areas:

1.) Your charger is faulty and is therefore not able to pass power to your laptops battery.

2.) The charging connector on the laptop has come loose from the contacts. Therefore a bad connection.

3.) Your battery is faulty.

I think possibility 2 is the most likely, although you will have to test possibility 3 by removing the battery and plugging in your charger and seeing if the laptop powers on.If it does power on then that rules out possibility 1 and 2 leaving a faulty battery.

Replacement Acer Extensa 5235 AC Adapter 65Watt 19V 3.42A

Nov 19, 2012 | Acer Extensa 5420-5687 Notebook

1 Answer

Laptop Dead, Wont power up

its power button doe not work please change it as soon as possible

Apr 14, 2009 | Acer Extensa 5420-5687 Notebook

1 Answer

Bios password on acer extensa 4620

ok on all desktops there is a jumper on the motherboard conecting 2 out of three pins and on the motherboard it says psswd. power off and unplug it then remove the door on the back where the ram goes ill bet thats where ull find it. take the jumper off and put it on the other pins. boot it up and password should be dissabled go int bios and make sure. u can leave it like this or turn off and replace the jumper. hope this helps.

P.S. if the jumper isnot by the ram check behind any other doors the laptop might have

Jan 24, 2009 | Acer Extensa 4620 Notebook

Not finding what you are looking for?

546 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers


Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

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

Answer questions