Question about System Power Supplies

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Do you have any idea why a laptop would power up all the way to Windows and then unexpectedly shut off without powering down? It is still plugged in. The battery is fully charged.

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Maybe a heat issue. I had a P4 system once that would do that exact same thing. I cleaned the cpu cooler and fans and added new heat sink paste between the heat sink and cpu. No problems after that. Let me know if this helps.

Posted on Dec 16, 2008

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I was running the program "windon Defender" on it and walked away. When I returned the computer was off and wasn't turn back on.


The Windows Defender Application is the Antivirus Software which will be pre-installed with the Windows Operating System(Windows Vista, Windows 7).
The Computer will always Shut down after any Windows Updates or any Operating System Updates are downloaded and installed.
If you are connected to the Internet and running Windows Defender, the Computer will automatically download the Updates for the Windows Defender Application.
Once the Updates are downloaded and installed, the Computer will prompt for a shut down.
The count down will be for 10 seconds.
After 10 seconds, the Computer will install the downloaded Updates and shut down.
This might be the reason for the Computer to shut down while using the Windows Defender.

If the Computer still shuts down randomly, the issue might be due to overheating.
All the Processors in Notebooks are designed to shut down automatically, if there is any overheating issues.
The overheating issue mainly occurs due to the malfunction of the Cooling fan.
If the Computer shuts down frequently, the issue might be due to the above factors.
It would be better to get the Unit examined at the Service Center.

Jun 22, 2010 | Acer (56.04145.901) (5604145901) Power...

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Have a Gateway Laptop Computer Model #MT6708. Previously computer had blank screen and no power. Currently purchased new battery and power cord. Computer now operating screen and power is on. However, when...


First thing check that the battery charge light is on when the battery and the charger are connected.
If it is it indicates that the power supply is charging the battery,
If it isnt it may indicate a fault with the battery or that the charger is not compatable with the laptop or that there is a fault with the charger.
If the battery is charging then try running the laptop on battery only without the charger and on charger only without the battery.
This will eliminate which one is faulty.

You mentioned that if you wiggle the cord then the light comes on again.
Check to see if the charger end plug is lose or the actual port on the laptop is lose.
If the charger plug is lose then return to seller and make sure they gave you the correct charger. if the actual port on laptop is lose then perhaps u got a bad connection and you need electrician or local laptop technician to open it up and solder properly on motherboard.

Let me know how it goes.

Oct 26, 2009 | Gateway System Power Supplies

1 Answer

Toshiba satellite A135S4437..wont work


If you are recieving power from just the Power cord without the battery. This could be a bad battery. If you are recieiving power but no video it would also be bad RAM. Try taking out the ram one piece at a time and testing one at a time. That should give you a better idea.

Oct 15, 2009 | System Power Supplies

1 Answer

Emachine shuts off when Windows starts to load


what os are you running? if xp try booting to repair console and run "fixboot" and or "fixmbr".

Jul 15, 2009 | E-Machines Emachine T5026 power supply **...

2 Answers

Asus ac adapter will not wrk green light on adapter


First check the wall socket make sure you are getting power, plug a lamp into it for instance. If there is no green light on the adapter then it is bad and you will need to order a new one from your computer manufactor.

rate with 4 diamonds

Mar 02, 2009 | ASUS AC Adapter- Universal Notebook AC...

1 Answer

Laptop booting up and then shutting off unexpectedly.


This sounds like the cpu fan assembly go to Gateway and enter the model in the support then download the system diagram so you can remove the casing it would take me forever to type the inst. once you have removed the cover put you hand over the cpu fan assembly and check for airflow
If you are afraid to diass. your comp. take it to a pro.

Dec 15, 2008 | System Power Supplies

1 Answer

350w switching power suply


Michael
at first chack at which time it shutting down. if it happen when u click on any drive or when u using cd/dvd drive then power supply cant regulate power. then chack switching transistor and filter section capacitor.
(Be careful about filter capacitor in primary section because some time it stored high voltage dc after plug of power supply at first discharge this two capacitor.)
** also chack supply voltage r stady or not.

Jun 26, 2008 | Codegen POWER SUPPLY CG|PS-350XA-12 RT...

2 Answers

Power up problem


Your laptop needs a new battery. Buy a new one and have it replaced by a service technician for free.

Sep 15, 2007 | System Power Supplies

1 Answer

Shuttle XPC XB51G Barebones - no power


I think you will find your PSU has gone faulty, they are very cheap these days, I would guess at the PSU and replace it "On Spec" with a similar one. Remove the four PSU screws around by the Fan at back. Unplug it from The motherboard noting connections, can only go one way thogh. Take the PSU to ya local repair shop and get another... put new one in connect up to MB and power up. If ya lucky.. ya solved ya problem. Or better still see if you can test it with another one B4 buying another.

Aug 08, 2007 | Shuttle XPC 250W Power Supply (CSSHMIS10)...

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