Question about IBM ThinkPad R40 Notebook

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Switching off immediately no ac current

When using it just goes off immediately there is a power outage.I don't know what todo

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Sounds like thermal shut down... basically getting too hot... you need to make sure the fan(s) are working.. you also need to clean out the dust and dirt from the fan and heatsink.

Robert

Posted on Jan 24, 2009

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The t30 light goes immediately from green to orange and won't power up. I just replaced the fan


Remove all power sources(battery and AC adapter) from the laptop. With the power source out, press and hold down the power button for 15 seconds. Then, power on the laptop using the AC adapter only. If this does not work, issue might have something to do with the motherboard.

Jun 09, 2010 | IBM ThinkPad T30 2366 Notebook

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My dell pa 12 won?t start ?


When i start my dell pa 12up and it takes 10 mins to load to windows XP, , when the windowsloading screen comes up the FANS go crazy. I then wait till i’m at thedesktop at which point i immediately shut down the pa 12(which takes afurther 7 mins) while the FANs are going crazy.

answer :

Now if i start the pa 12 again it works normally.

I had to do this procedure everyday, untill today when i switched the pa 12 on, waited till the desktop appaered and i removed the battery while the pa 12 was on..
17028ca.jpg
Now when i switch the pa 12 on it powers up but i’m not getting anything on the screen

First try a different AC adapter (such as :pa 10 ac adapter)

If no change then the issue is the motherboard. Often the AC adapter will fail then the battery discharges and you get the symptoms youdescribe.
SO AC adapter then MB

It shows no power on your laptop but it shows you the dvd player led comes on then off.

I would suggest try the following:

1. Remove laptop battery, optical drive, hard drive and ram. Remove external peripherals as well.

2. Make sure AC Adapter is not yet connected to the laptop. Pressand hold on the laptop’s power button for 10 seconds to drain the powerflea.

3. Connect the AC Adapter to a known good power outlet, check ACAdapter power LED if it is on. Try to sense if AC Adapter is not makinga bit of noise when it is plugin to the wall power outlet.

4. Connect now the AC Adapter (hp dv6000 ac adapter)tothe laptop. Check if AC Adapter LED stays on when it is connected tothe laptop. If the LED stays on means the AC Adapter is fine. If the ACAdapter LED turned off check the AC Adapter pin that goes to the laptopAC socket if it is loose.

5. If laptop AC Adapter stays on after connecting to the laptop try topower on laptop. If no power LED comes on then this is motherboardproblem.

6. Before replacing the motherboard there is one checking needs todo. If you can open your laptop bottom part then good, do this whenlaptop is not connected to any power source. Try to reseat the laptopCMOS battery then try to power on laptop after, if still fails thenreplace motherboard. I hope this helps.

on Feb 09, 2010 | PC Laptops

1 Answer

1525 dell battery not charging.


this could be one of 3 things.

Bad battery
Bad AC power adapter
Bad internal power jack (where the plug goes into the laptop)

The easiest thing to do is to try and use your laptop with the ac power adapter plugged in and no battery. This should work but if it doesnt then you know it probably is your ac power adapter. But if you feel like you have to wiggle and hold the cord in then it may be the jack on the inside. The only way I know how to fix that is to take it apart and resoder the joint holding that part together to make a stronger electrical connection.

As for the battery if you let it sit out for a day it will discharge any current it currently has inside of it and then you can try again to charge it. If that doesnt work and your cord and jack seem fine then you will need to look for a new battery to replace the one that died. This happens over a couple of years as the battery life shortens over the life of the laptop and more so if you use it heavily.

May 07, 2010 | Dell Inspiron 1525 Notebook

1 Answer

Acer 5920 aspire wont start


1. Remove laptop battery, optical drive, hard drive and ram. Remove external peripherals as well.

2. Make sure AC Adapter is not yet connected to the laptop. Pressand hold on the laptop’s power button for 10 seconds to drain the powerflea.

3. Connect the AC Adapter for laptop to a known good power outlet, check ACAdapter power LED if it is on. Try to sense if AC Adapter is not makinga bit of noise when it is plugin to the wall power outlet.

4. Connect now the AC Adapter tothe laptop. Check if AC Adapter LED stays on when it is connected tothe laptop. If the LED stays on means the AC Adapter is fine. If the ACAdapter LED turned off check the AC Adapter pin that goes to the laptopAC socket if it is loose.

5. If AC Adapter stays on after connecting to the laptop try topower on laptop. If no power LED comes on then this is motherboardproblem.

6. Before replacing the motherboard there is one checking needs todo. If you can open your laptop bottom part then good, do this whenlaptop is not connected to any power source. Try to reseat the laptopCMOS battery then try to power on laptop after, if still fails thenreplace motherboard. I hope this helps.

Jan 19, 2010 | Acer Aspire 5920-6727 Notebook

2 Answers

Toshiba m60 will not power up - power supply is


If you know for sure the ac adapter is okay and the laptop won't turn on then its got to be the motherboard that is bad cause that is where the power goes thru to start.

Take out the battery and only hook up the ac adapter and see if the laptop will turn on then, if it does then that means the battery needs to be recharged up or bad if it won't charge up.

If you take the battery out and the laptop still won't turn on then you know for sure motherboard is bad.


Jan 06, 2010 | Toshiba Satellite M60 Notebook

1 Answer

C500 Laptop won't come on power button just flashes


Have you tried attaching an external monitor when the LCD screen is disconnected from the motherboard? this connector is located under the keyboard strip – a piece of plastic just above the keyboard.
If it works, this way, then the video cable isn’t seated properly in the connector on the back of the screen. Plugging the video cable back in should fix the problem.
I don’t know how comfortable you are with taking apart laptops but I think that this information could be useful for you.
Source: http://www.asklaptopfreak.com/laptop-notebook-help/2006/08/08/laptop-powers-on-and-shuts-off-immediately/

Sep 28, 2009 | Compaq PC Laptops

2 Answers

Battery wont change


A problem is just like a mountain. You don't jump over the mountain, you climb it in steps, one step at a time.

1.How old is the battery? 1 to 2 years old, you can expect it to be at the end of it's Life Cycle. Batteries are rated in so many hours of usage.
Best bet is to let the battery charge 24 hours, then try it.

Would be nice if you someone else that has an Inspiron 1525, and they would try to charge your battery. If it doesn't charge up, you would know it's the battery. If it does charge up you can move on down the charging system, to try to find the problem.

2.AC adapter, (Charger) If you have a multimeter, set it to the 50 volt DC scale.
Laptop and desktop computers use DC current. (Direct Current) Your house, for example, uses AC current, (Alternating Current)
AC is converted to DC by the AC adapter, (Charger)

An example of DC current are flashlight batteries, and your laptop battery.
DC current has a Positive pole, and a Negative pole.
The center pin of the plug of your AC adapter is the Positive pole. Any of the four outside pins on the plug, are Negative.
The Red, (Positive), probe of the multimeter goes to the center pin. The Black, (Negative), probe goes to any of the outside four pins on that plug.
Example of a DC Power Jack, for the Dell Inspiron 1500 Series of laptops, 1525 and 1526, (This is the jack inside your laptop, where you plug the AC adapter into),
http://www.megaemarket.com/dc-power-jack-for-dell-inspiron-150150015011505.html

3.It may be that DC Power Jack itself is bad, or one of the solder connections is cracked. It's hard to see it clearly on the link I provided, (So I Right-clicked on it, Save Image As, and put it right in my My Pictures folder. Then I magnified it), but in the photo you will see some metal pins sticking out of the rectangular body.

The metal pins are sticking up. In reality those pins go down, when the jack is mounted on the motherboard. They go through the motherboard, via holes, and are soldered on the other side.
It is these solder joints that may crack, is what I'm referring to.

Solution to 1?
Obviously buy a new battery.

Solution to 2?
If your multimeter findings show lower voltage than needed, it's time to buy a new AC adapter. They have generic ones that can be used on a variety of laptops. The voltage will be stated on the top of the AC adapter.
Example: 19.2V-1.0A
That's 19.2 Volts at 1 AMP.

It may just be the plug end on the AC adapter itself. The plug end that goes into the DC Power Jack, on your Inspiron laptop.

Solution to 3?
Unless you are a skilled Electronics Technician, and have Excellent de-soldering/soldering skills, I advise taking it to a computer repair shop. It may not just be cracked solder joints. The DC Power Jack may need to be replaced. Maybe the motherboard is one of a bad design, and where the DC Power Jack attaches to it, has cracked.

Jul 25, 2009 | Dell Inspiron 1525 Notebook

2 Answers

Emachine Turns Off


This is the best way to tell. If your system is shutting down on you by behaving like your shutting it down thru windows then it could be a spyware, virus trojan issue going on. If thats the case then run your virus program and see what it finds and remove it. If your laptop is shutting down on you where everything turns off right away with no lights, kind of like a power outage then go ahead and remove the battery and only use the ac adapter and see if that solves the problem. If it does solve the problem then you know its your battery that is the culprit. If your only using the ac adapter and the machine shuts off on you like a power outage with no lights then you know its a problem with the motherboard. With just the ac adapter plugged in, wiggle the cord near where it plugs into the laptop and if it shuts off on you like a power outage then you know its a loose DC Jack and it needs to be resoldered back into place. Hope all this helps.

Jun 12, 2009 | PC Laptops

1 Answer

Problem with power cord/AC adaptor...maybe?


I would just go buy another battery charger pack. They are like 75 dollars to buy. Sounds like yours might have a short in it!

Mar 26, 2009 | HP Compaq nx6110 Notebook

1 Answer

Toshiba Satellite 1405 - Power problem


Hi Don

Although symptom is showing that AC Adaptor is not working as its not providing power to the unit. I will suggest you to perform some basic troubleshooting steps. Check if outlet is working if not check with known working outlet. If you have a multimeter you can the output of the AC adaptor.

Also you can perform full power cycle and component discharge. Take the battery out and disconnect the AC adaptor press the power button and hold about 7 seconds. After that put the AC adaptor in and test again.

If issue persist take to nearest Service center check with known working AC adaptor. After that I believe you will figure out the best solution.

Good Luck

Jan 21, 2008 | Toshiba Satellite 1405-S151 Notebook

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