power problems with Toshiba Satellite A205-S5855, randomly shuts off

Discussion in 'Computer Cases, Power Supplies and Cooling' started by elmer91, Apr 2, 2009.

  1. elmer91

    elmer91 Member

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    About a week ago my laptop starting randomly shutting off. at first i didnt think anything of it, but the last few days it has gotten really bad. i am not doing anything that could cause it, it has good airflow, it is fairly level, and i am not beating on it or anything. it shuts off sometimes when i set it down, when i am typing. one time it shut off when my wrist was barely resting on the left side under the keyboard. any ideas on what the problem is?
     
  2. Zatharus

    Zatharus VIP Member

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    2,065
    That sounds like you have a bad connection or short internally, either to the power systems or to a component (RAM, CPU, etc...).
     
  3. elmer91

    elmer91 Member

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    372
    ok. i checked to power supply, the battery, and everything seemed fine. is this something i should send in for the warranty? (im not to good with computers, joined this forum to get help)
     
  4. Zatharus

    Zatharus VIP Member

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    2,065
    I would definitely call Toshiba tech support for this. How new is the laptop?
     
  5. elmer91

    elmer91 Member

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    372
    i bought it june 2008.
     
  6. Zatharus

    Zatharus VIP Member

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    Yeah, call warranty services. You most likely have a hardware problem if it is just powering off abruptly.

    In the mean time, grab SpeedFan and run Prime95 on it. Monitor the laptop for sudden spikes in temperature. It could be a thermal shutdown, too.
     
  7. elmer91

    elmer91 Member

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    both of those free to download?
     
  8. Zatharus

    Zatharus VIP Member

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    2,065
  9. elmer91

    elmer91 Member

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    372
    got them both now. but no idea what i am doing with them. speedfan says core 0 is at :48, and core 1 is at 1:48
     
  10. Zatharus

    Zatharus VIP Member

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    2,065
    That's normal. Watch those number while running a long session of Prime95. See if they spike right before a shutdown or just note what the highest numbers you see are.
     
  11. elmer91

    elmer91 Member

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    what do i need to have everything set on to run prime95?

    and what numbers would be considered a high temp number?
     
    Last edited: Apr 2, 2009
  12. Zatharus

    Zatharus VIP Member

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    2,065
    Just launch both programs. In Prime95, go to the options menu and choose "Torture Test" and then the second option, In-place large FFTs.
     
  13. elmer91

    elmer91 Member

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    thanks for the help. i will run that tomorrow when i have the time to. and what numbers should i be looking for when the temp gets high?
     
  14. Zatharus

    Zatharus VIP Member

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    2,065
    My pleasure! :)

    Too high for this model is going to be in the 70's plus I believe. The main thing to watch for though is a sudden spike temperature or a constantly rising temperature and then crash.
     
  15. elmer91

    elmer91 Member

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    372
    i am starting to think it is a short somewhere. the highest number i have seen with normal usage is 52, and i was experimenting, seeing if there was a certain spot that would trigger the shutdown, and it does it all around at random times. the average number i am seeing is 47-48
     
  16. Zatharus

    Zatharus VIP Member

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    That is quite possible. I had that happen to some of my machines in the past. Either a short or a loose CPU (happened on one of my old machines).
     
  17. elmer91

    elmer91 Member

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    my brother mentioned that it could be a faulty temp. sensor. he said that the laptops at his school were doing the same thing, and that was the problem.
     
  18. Zatharus

    Zatharus VIP Member

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    Yeah, that's what I was getting at when I was suggesting to look for sudden spikes in the temp. I have had this happen before on desktops where the motherboard's sensor freaks out and causes a thermal shutdown without legitimate cause.
     
  19. gregboyd

    gregboyd New Member

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    I am having the same issue, as is another person on another forum. The A205-57464 has recently started shutting off. My wife, who now has lost faith in my ability to purchase her a decent laptop will be working on something and the Toshiba will just shut off, sometimes 3-4 times a day. For a while I blamed Vista, but being an Electrical Engineer, I can see this is a bigger problem. It is frustrating because I paid an additional $400 to get what I thought was a "better" model.

    According to this other forum, the issue is the Mother Board and it will run approx. $500.
    Yikes. That is not what I signed up for with Toshiba.
     
  20. elmer91

    elmer91 Member

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    372
    wow.... glad mine is still under warranty. this is one of the first problems i have heard of with toshiba.
     

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