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Computer froze during Bios Update, now it will not boot up, no display

I was trying to update the bios because my computer kept freezing. Well it froze during the update, manually restarted and ever sense it will not start. There is power the fan turns on lights show, no beep, no display or keyboard...Tried to take the mobo battery out, and manually resetting the bios but no go. any help?

DELL XPS STUDIO 435 MT INTEL CORE I7 MOTHERBOARD R849J 0R849J CN0R849J CN-0R849J
Intel i-7
Windows 7
5 answers Last reply Best Answer
More about computer froze bios update boot display
  1. Very likely a dead BIOS. You may want to bring it somewhere that can test the RAM and PSU to confirm though.

    There's a rumor that if you unplug, pull the battery, hold the power button for 30 seconds and leave it unplugged for 24 hours, that your bios has a greater chance of being set back to default. It's just a rumor though, but it's worth a try.
  2. Can it be replaced?
  3. Hi

    Without full details of the motherboard no one can help you more

    Some PC's have dual bios which can be made to boot from backup bios chip (usually jumper switch)
    Others can be made to boot up and read usb memory stick or CD containing bios file, then flash the bios if you press correct key at POST
    (because not all of memory in eprom chip is replaced by bios flash, so enough bios code is left to boot up & re flash).

    read motherboard handbook or contact motherboard or PC manufacturer for help

    Never update bios if PC is unstable or mains power is unstable or for laptop on battery power alone
    Find out what components or drivers are fauly or causing instability before updating bios.

    regards

    Mike Barnes
  4. mbarnes86 said:
    Hi

    Without full details of the motherboard no one can help you more

    Some PC's have dual bios which can be made to boot from backup bios chip (usually jumper switch)
    Others can be made to boot up and read usb memory stick or CD containing bios file, then flash the bios if you press correct key at POST
    (because not all of memory in eprom chip is replaced by bios flash, so enough bios code is left to boot up & re flash).

    read motherboard handbook or contact motherboard or PC manufacturer for help

    Never update bios if PC is unstable or mains power is unstable or for laptop on battery power alone
    Find out what components or drivers are fauly or causing instability before updating bios.

    regards

    Mike Barnes



    DELL XPS STUDIO 435 MT INTEL CORE I7 MOTHERBOARD R849J 0R849J CN0R849J CN-0R849J
    Intel i-7
    Windows 7
  5. Best answer
    I've had a few dead motherboards, and they do just that. Both most likely BIOS related.

    Not much you can do, unfortunately. You can sometimes order a new BIOS chip, but that will require soldering into place.

    You most likely will need to replace the motherboard. I think it's a LGA 1156.
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