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Variety of problems with one laptop


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#1 Wolt

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Posted 06 March 2016 - 06:53 AM

Greetings.
I apoligize for my insufficient knowledge of English.

 

I decided to search for an advice abroad since nobody is able to help me here in my country.

 

I have a Packard Bell Easynote TE 11HC laptop. It has two very strage problems that I can't solve for months. Before I throw it into recycle bin, I would like to know if maybe there is something that can be done (besides changing the MOBO).

 

1st problem: Whenever I physically move, touch, lift the laptop it instantly drops Internet connection. The CPU starts to run at 100% with System interrupts process at the top. It also gets huge latency spikes at that moment caused by ndis.sys driver. The ONLY  way to get back the connection is to restart or hybernate the laptop. At first I thought that my wireless card is on its way out, so I took it out, and switched to LAN cable. To my surprise, the same thing happens with LAN cable. I simply lift my laptop from table, put it in my lap and the network is gone. CPU runs at 100%, LAN or Wireless adapter has glitched out and doesn't even respond when I dissable it. Again, the only way to get back the connection is to restart or hybernate the laptop.
Software wise I have tried practically everything. It happens on all versions of Windows with all drivers. It almost certainly looks like some sort of hardware problem, but since it happens with both adapters, I have no idea what could cause this.

 

2nd problem: This problem showed up just recently. Laptop started to shut down when the charger is plugged in and something graphically demanding is happening on screen. (Video or game). I've tried to take out battery and leave it only on charger - same thing happens. It works perfectly fine only on the battery power. When it shuts down, I can turn it back on right away BUT it disconnects the battery for like 5 minutes. It shows ''plugged in'' not charging. At first I thought that the charger is unable to provide sufficient power, since it happens when watching videos or playing simple games, but then I tried similar charger (not original though), and it did the same thing. Laptop is not overheating! I've monitored CPU and GPU temperatures. It barely reaches 65C. Heat sink is clean, thermal paste looks fine, and no dust are inside the laptop. Something causes short circuit when it is charging.

The worst thing is that I gave this laptop to specialists, and they said that there is nothing wrong with the laptop... But obviously it is barely breathing!

Could it be, that the Motherboard has gone completely crazy?

 

Thank you in advance!

 



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#2 ranchhand_

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Posted 06 March 2016 - 09:08 AM

Hello Wolt, and Welcome to BC. Your English is far superior to many who have been born and raised in the USA. No joke.

You said:
 

 

Whenever I physically move, touch, lift the laptop it instantly drops Internet connection

This is definitely caused by a bad connection. When you move the laptop, whatever connector on the motherboard that is loose makes/breaks connection. To be honest, there isn't much that can be done. Replacing the motherboard has two problems:

> You may not be able to get one; Packard Bell has always specialized in cheaply made computers and this lap is no exception. That company has not existed in the USA for at least 10 years, and I understand that the assets were purchased by another manufacturer, I am not sure which one. Evidently it is still being manufactured under that name in Europe (I assume you are from Germany).

> Even if you could find one, the price and installation labor charge would be at the very least half or more of a new laptop. It just isn't worth it. Unfortunately, that is the problem with laptops; they are made so cheaply, and the engineering is so customized for each one, that major parts replacements are financially unrealistic.

 

Laptop started to shut down when the charger is plugged in

Since you have replaced the wall adapter, and the laptop only works on battery power, I can only assume that the problem is in the connection from the plug where the jack from the wall adapter plugs in to the connection on the motherboard. There is also a possibility that the integrated GPU (video card) is in the process of failing or overheating since this only happens with graphics-intensive games. Again, you are dealing with the motherboard which puts you back to square one. Most laptops, and especially the lower-cost type, integrate everything onto the motherboard to save space, so that is a big reason why laptop computers are largely unrepairable items, except for minor things like replacement batteries, wall adapters, memory chips, etc.

There may be others on the forum with more insight that I have, so let's hope.


Help Requests: If there is no reply after 3 days I remove the thread from my answer list. For further help PM me.


#3 Wolt

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Posted 06 March 2016 - 12:04 PM

Thank you ranchhand_ !

Honestly, I've spent so much time during last month just to figure out what's wrong with this laptop, that it's time to finally let go. I suspected the motherboard at one point, but I simply thought that there might be individual components that are faulty and could be repairable. But. yeah, I gues it's just not worth it. This disconnection problem is the strangest thing I have ever seen on a laptop. I reseated both network cards and still nothing. So I guess it really is a faulty motherboard that simply has been acting up all this time.

Thank you again!



#4 ranchhand_

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Posted 06 March 2016 - 11:02 PM

My pleasure, Wolt. :cowboy:


Help Requests: If there is no reply after 3 days I remove the thread from my answer list. For further help PM me.





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