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Author Topic: What are the causes of BIOS failure?  (Read 23202 times)

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Zaeem

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    What are the causes of BIOS failure?
    « on: September 21, 2011, 11:49:49 AM »
    I recently had to replace my motherboard because of BIOS failure. The system won't boot up! And all that happened suddenly, overnight! Last night I shut the computer down without any problem and the next day nothing shows up on screen, with the fans of GPU and CPU running (because the PSU was OK). Can you experienced people tell me, why does BIOS fail at all? What are the reasons? Or, is it just pure bad-luck?
    Thanks in advance!

    Allan

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    Re: What are the causes of BIOS failure?
    « Reply #1 on: September 21, 2011, 01:00:52 PM »
    There's no such thing as "bios failure". So please describe your problem IN DETAIL.

    Geek-9pm


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    Re: What are the causes of BIOS failure?
    « Reply #2 on: September 21, 2011, 10:27:15 PM »
    There's no such thing as "bios failure". So please describe your problem IN DETAIL.
    I agree. Look at the documentation for the motherboard. If the BIOS is generating error messages, it is working. Please explain why you use the term BIOS Failure" The first order of the BIOS is to report failures of hardware sub systems. If VGA  or RAM does not work, it sends 'beep' codes.
    Quote
    Award BIOS beep codes.
        1 short DRAM refresh failure
        2 short Parity circuit failure
        4 short System timer failure


    quaxo



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    Re: What are the causes of BIOS failure?
    « Reply #3 on: September 21, 2011, 10:42:40 PM »
    with the fans of GPU and CPU running (because the PSU was OK).

    This is not a guarantee that the PSU is healthy. A failing PSU could still provide enough power to make fans operate.

    Geek-9pm


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    Re: What are the causes of BIOS failure?
    « Reply #4 on: September 21, 2011, 11:12:40 PM »
    This is not a guarantee that the PSU is healthy. A failing PSU could still provide enough power to make fans operate.
    True. Fans tolerate voltage variations. A 12 volt foes work on 9 volts. But a hard drive will not.

    Zaeem

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      Re: What are the causes of BIOS failure?
      « Reply #5 on: September 22, 2011, 06:00:50 AM »
      My bad! I should have used "Corrupted BIOS" instead of "BIOS Failure". A situation that causes the motherboard to be out-of-order; when your are unable to see anything on screen. Now, tell me what causes BIOS to get corrupted?

      Allan

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      Re: What are the causes of BIOS failure?
      « Reply #6 on: September 22, 2011, 06:10:46 AM »
      Same answer - bios doesn't get corrupted. AGAIN - Please explain the problem in detail and forget about the bios. Thank you.

      Zaeem

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        Re: What are the causes of BIOS failure?
        « Reply #7 on: September 22, 2011, 08:13:20 AM »
        LOLs brothers!
        Check this:
        http://www.wikihow.com/Repair-Corrupted-BIOS-Firmware
        What's the problem they are helping to solve?

        What I mean to say (in simple terms) is that:
        If your:
        1) CPU is OK
        2) GPU is OK
        3) RAM is OK
        4) PSU is OK
        then, you just do a replacement of Motherboard and nothing more, and your computer is fixed, what might have caused the old (faulty) motherboard to become out-of-order?

        patio

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        Re: What are the causes of BIOS failure?
        « Reply #8 on: September 22, 2011, 08:26:06 AM »
        Quote
        what might have caused the old (faulty) motherboard to become out-of-order?

        Old Age
        Excessive humidity/moisture
        Physical jarring
        Bad Power components
        Bad Karma
           
         
        " Anyone who goes to a psychiatrist should have his head examined. "

        Allan

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        Re: What are the causes of BIOS failure?
        « Reply #9 on: September 22, 2011, 08:52:49 AM »
        LOLs brothers!
        Check this:
        http://www.wikihow.com/Repair-Corrupted-BIOS-Firmware
        What's the problem they are helping to solve?

        If you try to install a new bios version and the upgrade doesn't go as expected (power outage during the flash, etc) then yes, the bios can become corrupted. Other than that, bios' don't go bad on their own. As patio says, motherboards are just another piece of hardware and hardware can go bad over time.

        Geek-9pm


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        Re: What are the causes of BIOS failure?
        « Reply #10 on: September 22, 2011, 10:59:30 AM »
        The BIOS is a firmware program that resides in a programmable chip that is most often solderer to the motherboard.Write operations to firmware are allowed only in very specific conditions. There is a special sequence used to write anything to the firmware.

        Quote
        http://www.wikihow.com/Repair-Corrupted-BIOS-Firmware
        The guy who wrote that is more goofy that I am. Do any motherboards now come with BIOS in a socket? If so, then all you need to do is buy a new BIOS chip and plug it in.

        To answer his question directly; firmware is most often corrupted by an attempt to flash the firmware and the process does do work right. The possibility that a random  software error could flash part of the BIOS is very remote.

        Any environmental condition that would compromise the firmware chip would also endanger most of the other components. Heat, mechanical shock, static discharge. or cosmic rays can damage most components. A power surge bad enough to cook the BIOS would also take out the other support chips.

        One other possible cause of premature BIOS chip failure is a manufacturing defeat that cause s one of more cells to lost is state, thus causing a binary 1 to become a 0, or the other way. One bit bit is enough to derail the program logic.

        If the defect is persistent, flashing the firmware is of little value. Or maybe a temporary fix if it is a weak cell that only holds state for a limited time.

        Again, if the chip is in a socket, the best choice is to replace the chip.

        P.S. There are tools for programming a chip while it is in the board. That is way beyond the scope of this forum, IMHO. Instead, you send the motherboard back to the manufacturer to repair or replace the chip. At ate same time they can test the motherboard for any other issues.

        patio

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        Re: What are the causes of BIOS failure?
        « Reply #11 on: September 22, 2011, 11:16:00 AM »
        Cosmic rays ? ?

        Hadn't considered that one...
           
         
        " Anyone who goes to a psychiatrist should have his head examined. "

        Geek-9pm


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        Re: What are the causes of BIOS failure?
        « Reply #12 on: September 22, 2011, 01:07:49 PM »
        Cosmic rays ? ?

        Hadn't considered that one...
        Yes, just before Nuclear blast in the list of things that knock out electronic systems.
        About Cosmic rays:
        Source of super cosmic rays pinned down
        Quote
        ...
        Cosmic rays are charged particles, mostly protons, that come swooping through space from beyond the solar system. They carry such an energetic punch they can knock out electronics systems on Earth if they manage to make it past our atmosphere. ...

        patio

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        Re: What are the causes of BIOS failure?
        « Reply #13 on: September 22, 2011, 01:24:13 PM »
        I give up...

        That in case you didn't recognise it was Humor...no embellishment was required.
           
         
        " Anyone who goes to a psychiatrist should have his head examined. "

        BC_Programmer


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        Re: What are the causes of BIOS failure?
        « Reply #14 on: September 22, 2011, 01:29:23 PM »
        Yes, just before Nuclear blast in the list of things that knock out electronic systems.


        It's Just after, thank you. I should know, I'm an expert on the subject, since I saw it on Stargate Atlantis.
        I was trying to dereference Null Pointers before it was cool.