Question about Toshiba Satellite M105-S3021 Notebook

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Mainboard replacement ,where do i get a repairs manual

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Hello. Try searching on the net. Some guys post very interesting video or picture tutorials on how to remove all the pieces.

Posted on Mar 16, 2009

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My Acer Aspire 7720-4428 memory slot clips are broken how can they be replaced


They can't. The memory sockets, along with the clips, are integrated onto and soldered to the mainboard of the laptop. The only repair is complete replacement of the mainboard and that would be more costly than replacing the unit with an new one.

Dec 19, 2014 | Acer Aspire 7720-4428 Notebook PC

1 Answer

My headphone jacks doesn't work on my 5517. How can I replace soundcard?


You cannot replace the sound card as it is integral to the mainboard, the only way to resolve the issue is to replace the mainboard, but you could always try taking the laptop to a reputable repair tech who may be able to re-work the headphone socket.

Jun 14, 2014 | Acer Aspire 5517 Laptop

1 Answer

Loose charger connection


If it is the power pin on the laptop itself then it could need a repair or even replacement, sometimes it could be the ac adapter plug that connects to the laptop that has worn and it simply needs a new ac adapter, either way it will need replacing.
If the power pin is part of the mainboard then it can be re-worked, but sometimes they cannot and it will be a mainboard replacement, good luck.

Dec 07, 2013 | Fujitsu Siemens Computers & Internet

1 Answer

My HP Compaq nc8000 will not start up correctly. When i hit the power button, only one green LED comes for a few seconds, then a yellow LED (which is the charge light) it sounds like the laptop is powering...


Check it is powering laptop,if not the jack has bad connection and not connecting to mainboard constantly,
Dobt thats what is happening in your case but need to rule it out for next step.
Remove the battery then try ac adaptor on its own.
Next try removing ram,insert one stick only,next sub it with other stick only,if still no good remove hard drive,you are attempting to get bios start screen to show up,if still no good you may be looking at mainboard power regulator ic fails,which are a real problem on some compaq models this also damages other components on the mainboard(google search will reveal what im on about)
Dont remember offhand but if its the type that has common mainboard fail its not worth repairing as the new boards always fail eventually due to same problem.
There are also light error codes in the back of the manual and available online to diagnose this by the type of lights showing up.

Feb 17, 2011 | HP Compaq Business nc8000 Notebook

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My screen is black..my computer come on but nothing in the screen


Video chipset fails or more frequently bad welded on the mainboard. Mainboard must be replaced, or repaired by a NASA's technician...

I had more than 40 5100 laptops in hands for similar problems...

Feb 09, 2010 | Acer Aspire 5100 Notebook

1 Answer

The DC Jack seems to be loose, I've tried two different AC Adapters and discovered that they are in fact not the issue. The screen will show constant switching between power mode and battery mode at times,...


More likely than not the DC jack will need to be desoldered from the mainboard and replaced or the whole mainboard replaced.

Without warranty coverage you're looking at around $75 for a qualified tech to solder a new DC jack in or the full cost of the computer (replacing the whole system) as parts for the Eee PC's are prohibitively expensive and motherboard/mainboard replacement not really an option.

Jan 22, 2010 | ASUS Eee PC 1000HA Notebook

1 Answer

How to turn up back lite on acer aspire 5100


Based on what you are describing it sounds like you your mainboard has failed, and it will need to be replaced. Even if it is just the video component that has failed you would still need to replace the entire mainboard as the graphics are made onto the mainboard.

I agree with hoggie if your notebook is less that 1 year old I would return it and use your warranty to get it repaired.

Jan 20, 2010 | Acer Aspire 5100 Notebook

1 Answer

Hp nx8220 display problems


I think I came across to a similar situation, try resetting the RAM by pulling it out and inset it back properly. If it does not work, try replacing the RAM from a working Laptop and see. Normally after disassembling the laptop assembling it again the RAM does not sits down properly causing the no display or a faulty RAM either.

Aug 10, 2009 | Computers & Internet

1 Answer

My A21m power button will not turn on laptop. Button just clicks and system will not turn on. Battery and power cord ok.


Check if it is plugged in. If not, you may have a problem either with your mainboard, battery, or power button. Try replacing your battery. If it still doesn't power on, contact lenovo support for a mainboard replacement. The battery should be roughly $100, and the mainboard roughly $200. Since your computer is quite old, the costs of repairing it may exceed the cost of a new computer.

Jun 13, 2009 | IBM ThinkPad A21m 2628 Notebook

1 Answer

Motherboard fried for no reason and suddenly


I understand your pain. Acer has a extensive case-history of motherboards that die or quit for no reason. Do a search and you will find forums full of complaints where the machine just quit for no reason and did not start ever again.

I repair laptops for a living and see dead Acers in here all the time. Replacing the motherboard of a dead laptop is not easy. If you know how to work on computers, make sure you have a Service Manual for that make and model to make sure you can reassemble the computer. I do NOT recommend this.

I also do not recommend replacing the motherbaord at all. Firstly, only an ACER mainboard for that particular model will work - and secondly if you have to pay for another mainboard plus installation, the cost of labor and parts will likely exceed the value of the machine - which even if repaired with a new mainboard - could conk out on you all over again.

My advice - consider it totaled, invest your money in a newer model, and think twice before you buy Acer again.

Dec 19, 2008 | Acer Aspire 5100 Notebook

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