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walter.sk

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walter.sk

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February 9th, 2011 16:00

Area 51 Desktop: Revert to Older BIOS?

I just had my motherboard replaced.  I had been having 2 problems:  1) With SLI enabled with my nVidia GTX 460's and USB2 peripherals plugged in, on starting up I would end up with VGI resolution.  2) With XMP memory installed, when accessing the DIMM2 readings in the BIOS v.A09, either the computer would freeze, or I would get a "Multi-Bit ECC ERROR" even though the memory is non-ECC DDR3 XMP.

On the old motherboard, I had BIOS v. A09.  When the new motherboard was put in, with BIOS A05, neither of the 2 problems showed up, and the computer ran fine.  I flashed the BIOS to A09, and now both the problems are back.

Is there a way to get a copy of the A05 BIOS, and is it possible to install it over the A09 again?

 

  • DELL-Chris M

    Community Manager

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    Posted February 11th, 2011 15:00

    The older ones are here but not A05. I have never tried to backflash. Maybe another user has saved it and can upload it?


    DELL-Chris M (old account)

    #IWork4Dell

  • flotown

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    Posted February 11th, 2011 22:00

     

    I don't know about finding A05  but here is a good tutorial on how to " backflash " using USB  stick or temp partition on C  drive if you can't within windows.

     

    http://www.vistax64.com/general-discussion/186156-how-flash-old-bios.html

     

    http://www.vistax64.com/tutorials/95398-disk-management-shrink-partition.html

     

    http://www.vistax64.com/tutorials/95418-disk-management-delete-extend.html

  • walter.sk

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    Posted February 13th, 2011 09:00

    Thanks for the links, Chris M and Flotown. I'm going to check them out.  My main fear is ending up with a brick that won't do anything!