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Bios flashing

Discussion in 'Hardware' started by zmaster, Sep 11, 2004.

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  1. zmaster

    zmaster Thread Starter

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    This is probably not a very good issue to discuss but i thought what the hey? My friend decided to try and overclock his cpu and it backfired. His computer won't startup/boot. It turns the power supply on and flicks the light on once to the cd-rom and thats about as far as it gets. Does anyone know if it is possible to flash his bios from such an early stage or does it always have to get past the posts before you can flash the bios?
     
  2. ratchet

    ratchet

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    It has to get through POST and detect a Floppy Drive.

    It may have zapped the Rom Chipset that is used to store BIOS.

    You could try removing the Battery and looking into CMOS reset jumper on the Mother Board.

    You may have to locate a shop that can flash the factory bios.
     
  3. ratchet

    ratchet

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  4. crjdriver

    crjdriver Moderator

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    What did he do? Did he raise the fsb [front side bus] or multiplier in the bios and then no boot or did he get it to boot and now it will not?

    If it never booted at all after he changed settings, you might be able to just clear cmos and be ok.
     
  5. zmaster

    zmaster Thread Starter

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    thanks for the replies, you wouldn't happen to know if you can flash the bios using a cd rather then floppy disk? i have found a bios upgrade for the motherboard. i was afraid it might have to get past the POST. hmm a researching i will go
     
  6. ratchet

    ratchet

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    I have never heard of or thought about flashing from CD-Rom, don't think the drivers are available at that stage.

    Definitely start with the simple stuff try the reset jumper and go from there.
     
  7. crjdriver

    crjdriver Moderator

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    Yes, you can flash a bios from a boot cd that you make, however you will not be able to save the old bios.

    Why do you want to flash the bios? If this is a failed OC attempt, you should be able to reset the bios with a clearing of cmos. Flashing a bios sometimes resets everything to default and sometimes keeps your settings. So if your friend changed multi or fsb, it may stay there after a flash.

    It is important that you DO NOT flash a bios that is OC; it must be returned to stock settings before you flash.
     
  8. crjdriver

    crjdriver Moderator

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    BTW it is somewhat involved making the CD to flash the bios. You will need a floppy with the boot files on it anyway, so it is generally best to flash from a floppy or the hd.
     
  9. zmaster

    zmaster Thread Starter

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    Thanks ratchet and crjdriver for your very helpful advice. I cleared cmos by taking out the battery and moving the jumper from normal to clear cmos and it fixed everything. his computer now works perfectly. Thankyou again for your help.
     
  10. crjdriver

    crjdriver Moderator

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    Glad you got it to work.
     
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