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Toshiba Satellite A205 Laptop

 
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Mattc30



Joined: 10 Feb 2011
Posts: 4

PostPosted: Thu Feb 10, 2011 8:57 am    Post subject: Toshiba Satellite A205 Laptop Reply with quote

Hi there

This may be a common problem but i cant seem to find any real diagnosis anywhere so im hoping somone here can help me Smile

My laptop started turning itself off about a month ago, randomly. Now have done some research and elimanted certain possible factors. Its not set to hibernate or sleep and the laptop switches off sometimes when im using it. Ive checked the power supply and the cords do not appear slightly torn or damaged. Also sometimes it can run for an hour off the mains then suddenly power off, other times it is minutes. The laptop seems to run fine off the battery, the problem seems to happen when running off the mains. Ive taken it to a repair shop where they stripped it and cleaned out the fan etc to eliminate an overheating issue, this was done last week but the problem remains.

The only thing i havent managed to do yet is download the Pc Health software from toshiba for it to do a temperature check.

I hope ive supplied enough information and thanks in advance to anyone who can shed som light on it.

Oh also, in case it was a virus i did a complete system restart and i have the latest licenced version of Zonealarm running.
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Steve



Joined: 07 Feb 2006
Posts: 184
Location: Bangalore, India

PostPosted: Thu Feb 10, 2011 9:13 am    Post subject: Reply with quote

I would doubt it's a virus or software issue, as you say it only happens when running on the mains. My first thought was overheating, dust often clogs up the fans/heatsinks, but you say that this has been cleaned with no luck. It's possibly a problem with the connection of the heatsink to the processor, but unlikely.

I would look to see if you can try a different mains adapter on the laptop, it could be that this is not providing a clean supply causing the problem. Other than that I would think it something internal that would require a professional to look at and diagnose/repair.
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Mattc30



Joined: 10 Feb 2011
Posts: 4

PostPosted: Thu Feb 10, 2011 9:28 am    Post subject: Reply with quote

Hi, cheers for that Steve i did forget to mention i have tried using my dad toshiba laptop power supply and the problem does occur then too. It seems very intermittent which is what really baffles me.

Thanks for you help
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JonS



Joined: 31 May 2010
Posts: 813
Location: Morecambe

PostPosted: Thu Feb 10, 2011 9:34 am    Post subject: Reply with quote

I'd be inclined to suspect either that the power jack is faulty and arcing / earthing the chassis and making it crash
or the voltage regulator capacitors on the board are faulty

both are repairable by someone with the right experience - however most PC engineers don't have that experience. it needs to go to a specialist laptop engineer
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Steve



Joined: 07 Feb 2006
Posts: 184
Location: Bangalore, India

PostPosted: Thu Feb 10, 2011 9:38 am    Post subject: Reply with quote

I agree with Jon; doesn't sound like something that can be fixed without taking it to an engineer.
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Mattc30



Joined: 10 Feb 2011
Posts: 4

PostPosted: Thu Feb 10, 2011 7:14 pm    Post subject: Reply with quote

Thanks for your help guys, ill give you an update once ive taken it to an engineer.
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Mattc30



Joined: 10 Feb 2011
Posts: 4

PostPosted: Fri Feb 18, 2011 10:42 am    Post subject: Reply with quote

Hi

I thought i would post the conclusion of the problem for people who may experience the same thing.

I had the laptop picked up yesterday by my dad from the original shop we took it to (who fixed the fan) and it seems there were 2 issues. One was the fan was blocked so obviously this causes the overheating etc. The second was the laptop had a number of infections within it. The shop had tried everything else and found no problems, so they did a deep system/hard drive scan and fuond a number of infected objects. They removed them and after tspeaking to my dad last night, he said the laptop was now running fine for a few hours. I will obviously have to test it at my house but im optimistic. What im not sure of is how these infections have manifested themselves within the laptop as i did a complete system restore using the Toshiba cd that came with the laptop (which had never previously been used). There is a chance that some files i had backed up months ago that i transferred to the restored laptop were infected, but i know the restored laptop was still shutting off before i had put these on and after the fan was fixed. They may have been a contirbuter to the problem but not the whole reason.

Anyway, many thanks for yuor help trying to figure it out and hope my posts help in the future.
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JonS



Joined: 31 May 2010
Posts: 813
Location: Morecambe

PostPosted: Sat Feb 19, 2011 2:21 am    Post subject: Reply with quote

you say they fixed the fan, but the fan was still blocked? Thats garbage. You fix a fan by unblocking it and maybe replacing it.You can't fix a fan without unblocking it. They didn't do the job last time

As to the viruses, nothing would have got past that Tosh recovery CD. That totally nukes the system. Theres a chance something may have been in the backed up files, but I presume you installed up-to-date antivirus software BEFORE you copied them back? if so, the shop is probably having you on

My guess is they failed to do the fan properly first time, so they did it again - and charged you again. You've been had


PS - the suggestion that the power jack was at fault was in the assumption that the fan HAD been checked / fixed.
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