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I can't get a power to my laptop. The battery is dead as well. Nevertheless, I checked the ac adapter but it seems fine. Is that a problem with a dc jack???? or something else????

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Have tried moving it to a new ac outlet, that might help but thats all i know

Posted on Jun 25, 2008

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I once had the same problem, and turned out it was a faulty memory RAM.
Try a differnet RAM SODIMM, or if you got two plugged in, take one out and try again.
Alway try removing the battery then power up using AC only.
Check to see if there is a small green light on the powerpack, if not try changing the fuse.

If non of the above works, if could be a dead dc jack as you said or even worse, like fried motherboard or cpu.

Best of luck mate.

Posted on Jun 25, 2008

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1 Answer

My computer does not start up looks like in satnd by mode


Most All-in-One Personal Computers (PCs) are based on internal laptop/notebook component technology.

The first item to test is the Alternating Current (AC)/ Direct Current (DC) Power Adapter to see if there is:

damage or a fault in the cabling;

damage or a fault in the transformer box;

a fault, damage or a loose connection in the AC/DC Adapter Jack point via which the AC/DC Adapter plugs into the PC.

If no AC/DC Adapter-related fault is evident or any such fault is definitively resolved (such as by testing a definitively functional replacement AC/DC Adapter), then his sounds like either a Loose AC/DC Power Jack detached from or short-circuiting its Motherboard Solder Points, a Power Management problem on the Power Management Tracks, Electrolytic Capacitors or Power Management Contoller Integrated Circuit (IC)/Chip on the Motherboard or a Graphics Chip or Graphics Card damaged surface or Motherboard Solder Point Contact fault.

Any of the 3 internal faults described above would require specialist internal diagnostics, repair and testing by a technician with specialist laptop repair experience and specialist Infra Red Workstation, BGA Reballing StationMicro-Soldering, Oscilloscope, and Multi-Metering equipment.

DC Jack repairs are likely to be moderately expensive. Power Management or Graphics repairs are likely to be more expensive still, but if conducted by a professional, all three repairs should resolve the problem. A competent repair technician should be able to repair these faults and offer a minimum 3 month warranty on a reoccurrence of the same fault.

So, on the symptoms described in the question, yes. Unless it is just an AC/DC Adapter fault, this will probably prove to be a serious, non-DIY repair problem, I'm afraid.

Dec 04, 2011 | Acer Veriton Z431GUi5650W 215Inch AllInOne...

1 Answer

XPS M1210 Laptop not powering up


No Power Issues on Laptops

There are 3 things to consider in order for you to determine a No Power Issue

1. Battery
2. Mother Board
3. AC Adapter


1. Remove the battery from the laptop

2. Disconnect all non essential cables (external hard drive, usb memory key, printer...etc.)just connect the AC Adapter

3. Take out the Battery....Usually there is a battery indicator that you can push at the back of the battery

4. By Now the battery power indicator should be full since it was never taken out

5. If still theres no light on the battery.... replace battery

6. Turn the laptop on without the battery

7. If the computer still did not turned on check the AC Adapter if there is light coming out

8. If there's no light that comes out from the AC Adapter. Reseat the cable from the AC Adapter to the Cord

9. Check if there is no light that comes out from the AC Adapter. AC adapter needs to be replaced

10. Otherwise the Mother Board needs replacing

May 17, 2011 | PC Desktops

1 Answer

My gateway laptop note book, will not power up, I have checked the cord, battery etc. Went to turn it on one day and no power? someone mentioned that it over heated?


First of all, take the battery off and try to turn it on with the ac adapter (power cord) connected. If it comes up without the battery then it's your battery.

If it doesn't turn on without the battery and with just the ac adapter, try a different ac adapter. You can find one to try at your local pc shop or electronics store. If it comes up with another ac adapter then all you need to do is purchase an ac adapter at the store or order one online (cheaper).

If it still doesn't come on then it's either your dc jack or your motherboard. Normally if it's just the dc jack it will turn on or attempt to turn on when you wiggle the connecter in the ac adapter connection. If it's your dc jack it's relatively inexpensive to purchase online. The problem comes with having to take apart the laptop, desoldering the old and soldering the new dc jack, and putting the computer back together.

Good luck and let me know if you have any other questions.

Oct 23, 2010 | PC Desktops

1 Answer

No power


Reset the memory modules and any other cards that are accessable, like the WIFI and modem cards.
Power up your laptop, does it work normally?
If not, then try rhe following steps.
Does it work when the battery is removed and the AC adapter plugged in?
If so you may have a bad battery.
Try this, unplug the AC adapter and remove the battery for a few minutes, leave the battery out and connect the AC adapter, power on your system, does the laptop work normally?
Power down, and reinstall the battery, with the AC adapter still connected, power up your laptop, does it work normally?
If not, the battery may be defective.
If NONE of the steps work then *********** board needs to be replaced.

I hope this helped, good luck and have a nice day.

May 26, 2010 | PC Desktops

1 Answer

My loptop is an Averatec 7100. How can I test the motherboard? I took it to a computer repair shop and they said is the motherboard, I want to know how can I test it on my own.


This is more of a system diagnosis that an actual motherboard testing procedure, but since all components attach to the motherboard in one way or another it could count as a prcess of elimination......

Laptop is dead. How to troubleshoot the problem.
In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.

What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.

OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.

If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack.
Example 2. When you plug the DC power adapter and press on the power button, the laptop starts making normal noises, the LEDs work properly but noting appears on the screen. The laptop will not start.
First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint.
If there is no image on the laptop LCD screen, test the laptop with an external monitor. Connect an external monitor to the VGA port on your laptop and turn the laptop on. You can toggle video output between the internal LCD screen and external monitor by pressing Fn and F4 keys simultaneously on HP laptops, Fn and F5 keys on Toshiba laptops, Fn and F7 keys on IBM laptops. Other laptops may use different key combinations.
Let’s say the external monitor works fine but the internal LCD screen has no image at all. If that’s the case, your problem could be related to the LCD screen or the video cable. Also, make sure the video cable makes good connection with the motherboard and the LCD screen. Try reconnecting, reseating the cable.
In my case, both internal and external monitors were absolutely dead. Neither of them had image. That means the problem is not related to the LCD screen or the video cable. From my experience I know that this problem could be related to the laptop memory.
Try reseating the memory module, maybe it’s not making good connection with the memory slot. Try cleaning contacts on the memory module with pen eraser. Try moving the memory module into another slot. Try replacing the memory module with another known good module, it’s possible that your original module is dead.
If you have two memory modules installed you can try removing them one by one, it’s possible that one of the modules is bad. Try installing different memory modules into different memory slots.

In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
Try removing battery, hard drive and DVD drive and turning on the laptop without these components.
Also, try turning on the laptop with an external monitor when the video cable is unplugged from the motherboard. If the laptop start with video on the external monitor, apparently there is something wrong with the laptop display panel.
Finally, disassemble the laptop and removed the motherboard.
1. Motherboard. Like on most laptops, in my case the video card is integrated into the motherboard
2. CPU with heatsink and cooling fan.
3. Known good memory module.
4. The power button board witch you need to turn on the system.
5. Working DC power adapter.

Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
At this point I’m 95% sure that the motherboard is dead. CPU failures are not very common, so it must be bad motherboard.





Oct 13, 2009 | PC Desktops

2 Answers

Laptop died suddenly and is not charging


Take the battery out and discharge the capacitors by holding down the power button for 15 seconds. plug in the charger without the battery in to see if you get a charge light. If you do, replace battery and plug in charger and power on laptop. If this does not work, you may have to pull the cmos battery for 15 minutes and try it again.

Oct 03, 2009 | PC Desktops

2 Answers

Compaq nx6320 won't power up


Replace your battery Some laptops don't boot up when no battery is present even it is connected directly on the power supply. Or if not to visit your nearest HP service center. If its still with warranty, use it.

Good luck kabayan. ^_~

regards,
-engrkoiled-

Mar 27, 2009 | Lenovo 3000 N100 0768 - Pentium Dual Core...

9 Answers

Dead Toshiba A100 laptop computer


In order to replace the power jack in your laptop you’ll have to remove the jack from the motherboard as I explained in the previous post: Replacing DC power jack.
While removing the jack you can accidentally pull out the internal copper coating (I’ll call it a sleeve) from the inside of the “+” terminal as it shown on the picture below.
9807c6d.jpg
The internal copper sleeve has been removed and cannot be installed back. If you solder the power jack back on the motherboard without this sleeve it might work but the connection between the “+” lead and motherboard will not be reliable.
In the following guide I explain how to fortify a damaged power jack connection. You can use this repair technique in some laptops with similar power jacks.
Laptop is dead. How to troubleshoot the problem.In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead. 
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.
What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.
OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.
If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack. Check out thisguide for fixing laptop power jack.

Jan 12, 2009 | PC Desktops

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