Question about Toshiba Satellite 1405-S151 Notebook

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Motherboard--- ac connection

The pin at the conection of the power cord into the computer is loose and the power will not stay connected. DataDoctors says the mother board has to be replaced and it is not financially feasible to do it. Is this definetly the problem and if so can some one with experience in building PC's be able to change the mother board and how much are they?

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  • pastordarrel Nov 07, 2008

    Thank you for your wisdom and expertice.

    Darrell

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You mean the PIN on the motherboard's side - soldering will do the trick OR if you can position the power cable to the right spot (where you'll have power while holding the cord)

motherboard replacement for a laptop - costly

Posted on Nov 07, 2008

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All that is needed is the pin to be resoldered, it does not need replacement. I have done this on several occasions.

Posted on Nov 07, 2008

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1 Answer

Won't start


WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.
http://www.kitchentablecomputers.com/static.php - rules
Only work inside the computer case when the power has been switched off and disconnected. Never open the power source.
Some of the below steps recommend removing physical parts within the computer.
While in the computer it is highly recommend that you be aware of ESD and its potential hazards.
Remove the memory modules from their slots.
Take the opportunity to clean the slots on the motherboards and the memory module connectors.
Use compressed air to blow dust away and clean contacts with a soft cloth.
Do not use a metallic vacuum cleaner if it touches any component it may create a short and cause damage to the motherboard or other components.


Do not use solvent that may attract dust and never poke things like cotton buds in to slots. lightly rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do the work on the copper gold or silver tabs and r
Allow the pins to dry.
They will air dry in a matter of minutes
If reseating the memory did not resolve the issue try swapping the location of the memory.
If you have only one stick of memory in the computer try moving it to another slot and then boot the computer.
Check the memory module and memory slot contacts.
They are either copper tin or gold.
The colour will tell you which they are.

Mixing tin and gold can result in corrosion that prevents proper contact.
Look for any sign of physical damage to the memory module, memory slots or the motherboard.
Reseat the memory modules.
You should hear an audible click when they are in place.
Do not use too much force to reseat the memory module in to the slot this can cause damage to the module, slot or motherboard.
The hardware that you are trying to access is damaged or failing.
Could be a problem with the Hard Drive or the Hard drives PCB
http://www.onepcbsolution.com/
http://www.youtube.com/watch?v=du0Qd_3wFWM
There is a connection problem such as a bad cable

Test all power and data leads that attach to your hard drive SATA

the leads from your MOTHERBOARD TO THE HARD DRIVE make sure they have a
secure dust free connections and are not faulty.
Although it would be very rare for the sata lead to be faulty.
Make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty
Computers need power and data to travel through every working device and continue its cycle and have an end so any faulty leads will end up with a computer error
also
There are several possible reasons the computer may not be powering on.
The connections may be loose or damaged.
The AC adapter or power cord may no longer be functioning.
The battery may be defective or no longer working; or the battery may need to be reset or recalibrated.
If these methods do not solve the issue with your Acer Aspire, contact Acer support for further troubleshooting options.

Inspect the AC adapter to be certain it is fully connected to the computer.
If the connection is loose, contact Acer for repair service (see Below).
Online Product Supporthttp://acer.custhelp.com/app/answers/detail/a_id/4/kw/battery
Check the AC adapter connection to the power cord. If the cord will not stay connected , there may be a defect in the power cord.
Contact Acer for service options or replacement parts.

If the adapter is connected to a power strip, make sure the strip is powered on and is fully connected to the wall socket.


Connect the adapter to a different electrical outlet if necessary.


After verifying all connections, attempt to power the computer on.
If the computer does not turn on, try power reset.

Reset
Disconnect the battery, and detach the AC adapter from the notebook.


Push the power button, and hold it for 30 seconds.


Reattach the battery.


Reconnect the AC adapter to the computer and a functioning electrical outlet.


Press the power button. If the computer does not power on, attempt to power on without the battery.

Power on Without the Battery
Shut down the computer.


Remove the battery from its compartment.


Connect the AC adapter and power cord.


Verify that the power cord is connected to a functioning socket.


Press the power button. If this method is successful, the battery may need replacing.

Recalibrating the Battery
Attach the notebook to the AC adapter, and allow the battery to fully charge.


Detach the AC adapter, and restart the laptop.


Fully discharge the battery.


Reattach the AC adapter to the laptop.

Fully charge the battery.

Jul 18, 2013 | Acer Aspire One PC Notebook

1 Answer

Laptop power cable


Has the AC jack been damaged due to pulling on the cord? Most likely the connection or the AC jack to the Mobo has been damaged. Depending on the AC jack it may need replacing or re-soldering.

Jan 28, 2013 | Acer Aspire PC Laptops

1 Answer

Dell inspiron elec cord isn't firm so power turns off


Maybe it's the DC Jack that the power cord plugs into. If the jack is loose then you will experience the issue you are having.

Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.

Apr 18, 2012 | Dell Inspiron 1525 Notebook

1 Answer

I connect the ac adapter (battery charger) and I have the battery in but when I turn the computer on it stays on for about 5 seconds then shuts off.


That is a hallmark of a failed DC jack...or a bad motherboard. I'll address the simplest thing first. The jack pin often comes loose. If you check the pin and it is not loose, test the computer with a known good compatible AC adapter. This will likely tell you what is causing the problem.

Nov 01, 2010 | Dell Vostro 1000 Laptop

1 Answer

Laptop won't power on with ac adapter or battery


Could be a combination of things.

1) Battery is low. Not enough power to turn the laptop on.
Caused by;

2) AC adapter has a plug on the end of the cable. The plug plugs into a DC Power Jack on the laptop.

The DC Power Jack is bad.

2a) The DC Power Jack has a bad connection to the motherboard, (Cracked solder joints), and/or the jack itself is bad.

2b) Center Pin is loose in the jack's mount.
The back of the Center Pin where it mounts has become loose.

2c) The plastic body of the jack, which composes the jack's case, is cracked. This allows movement of the Center Pin.

2b, and 2c cause a bad connection with the AC adapter plug.

No charge to the Battery, no power to the laptop.

http://www.laptopjacks.com/view_part/For-Gateway-MX6920-DC-Power-Jack-GW51425.html

[ If this is the case the DC Power Jack needs to be resoldered to the motherboard. The cracked solder joints need to be re-melted, (Reflowed)
Entire laptop needs to be disassembled down to the bare motherboard in your hand.
(No Processor, Ram Memory, or any adapter cards mounted to the motherboard. Nada)

OR,
The DC Power jack needs to be replaced.
This entails disassembling the entire laptop, down to just the motherboard in your hand. (Same as above)

The old DC Power Jack is de-soldered, and a new one soldered in place.

Very FEW computer repair shops have the necessary skill level.
They just want to replace the entire motherboard.
IF one is available.
More Ka-Ching for them also. ]

3) The AC adapter is bad.
Not providing power to the laptop, to charge the Battery, nor give power to the laptop without the Battery.

AC adapter cord from adapter to plug, which plugs into the laptop, (DC Power Jack), may have a break in it.

May be an intermittent contact provided by wiggling the cord.
If this is the case the wires have stretched, and broken.
Wiggling causes the wires to briefly touch, and make contact.

Where this cord meets the plug itself. A lot of times there is a break in the wires in this area.

Solution is to replace the AC adapter. There are universal AC adapters you can buy, or perhaps Gateway still has some for sale.
(Ka-Ching)

Oct 21, 2010 | Gateway MX6920 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

1 Answer

Power jack is broke. want to connect to battery pins off motherboard. need pin assignments. i found them for the power jack but cant find for battery connection.


it is nearly just as easy to cut the conection of the power cord and weld it strait to the board where the conection was, or use a volt meter and trace the conections back to some where more stable, conecting strait to battery will or might do damage and the laptop will think it is always running of the battery. and or also could over charge the battery because you are bypassing the switch that stops it. hope this helps a bit.

Dec 02, 2009 | Dell Inspiron 6000 Notebook

1 Answer

Battery is run down, AC power works, but will not connect.


It sounds like the store is probably right.

The fact that you had to wiggle the cord to get it to work tells us that the receptacle for the power adapter was damaged, and that receptacle is almost always attached directly to the motherboard.

Sorry :(

Mar 20, 2009 | Toshiba Satellite A75-S209 Notebook

1 Answer

Power Issue


sounds suspiciosly like your chord fitting is damaged(loose wires at connection)and shorting.if possible try a friends power supply with same connecter type before renewing cos could be faulty(loose)connection at pc(inside)constant pushing and pulling of connections often causes 1. loose split or disconnected wires at male connection or 2.loose pins on motherboard female connection or broken housing (not difficult to repair)more difficult to find out how to get to internal connection.

Mar 04, 2008 | Toshiba Satellite M65-S9092 Notebook

2 Answers

No power


A broken power pin is quite common on laptop computers. The pin gets damaged from plugging and unplugging the cord plus all the daily tugs and pulls on the cord. The cumulative damage breaks the connection from the power pin connector to the motherboard.

If you are mechanically inclined the repair can be made pretty easily. The pin usually runs anywhere from $5 - $15. It's the labor at a shop that is expensive ($99 - $250 or more).

Once you get the system repaired get a Cable Retention device and use it religiously so the problem doesn't reoccur.

Here's a video about the problem and the JerkStopper AC Cable Retention kit.

Dec 25, 2007 | Dell Inspiron B130 Notebook

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