Will not boot up

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  1. Posts : 16
    win 10
       #1

    Will not boot up


    My clock was giving me the incorrect time so I changed the motherboard battery
    now it pc will not boot up . I have tried reinstalling Win 10 but there is no recognition of any of my drives.

    Maximus V11 Ranger
    16Gb Ram
    I7 4770
    M.2 as my main OS drive
    Win 10 :-17134 rs4 180410-1804
      My Computer


  2. Posts : 12,486
    Win10 Version 21H2 Pro and Home, Win11 Pro
       #2

    Are you able to enter the BIOS setup? F2 or Del key at the logo or prompt, whatever your computer uses.

    Changing the CMOS battery is the only time I leave the power cord plugged while working in a case, retains the user settings.
      My Computers


  3. Posts : 16
    win 10
    Thread Starter
       #3

    Yes i can enter the UEFI Bios and ave set uo the use of the M.2
      My Computer


  4. Posts : 7,127
    Windows 10 Pro 64 bit
       #4

    Check the new battery is OK - it should be c. 3.2V. Load the BIOS defaults, check Windows boots then enter your preferred BIOS settings.
      My Computers


  5. Posts : 16
    win 10
    Thread Starter
       #5

    already checked the battery voltage ok
    tried loading the defaults and it still will not boot
      My Computer


  6. Posts : 39,996
    windows 10 professional version 1607 build 14393.969 64 bit
       #6
      My Computer


  7. Posts : 515
    Windows 10 Home
       #7

    stormforce said:
    already checked the battery voltage ok
    tried loading the defaults and it still will not boot
    Changes to the BIOS setup typically are not saved automatically. Read the screen carefully to see how to exit and save the changes.

    Ben
      My Computer


  8. Posts : 5,829
    Win 11 Pro (x64) 21H2
       #8

    stormforce said:
    My clock was giving me the incorrect time so I changed the motherboard battery
    now it pc will not boot up . I have tried reinstalling Win 10 but there is no recognition of any of my drives.
    When you changed the CMOS battery you effectively reset the BIOS. Go back to the BIOS and look for something that says "Load Optimized defaults". Hit enable or whatever it requires and this will set the BIOS back to it's basic settings (outside of any customized settings you may have done) and allow your PC to boot properly.

    And for the record, any time you change the CMOS battery or do a Clear CMOS, this needs to be done. It also should be done anytime a BIOS update is done (though some BIOS updates "usually" leave custom setting alone).

    Let us know.
      My Computers


  9. Posts : 17,369
    Windows 11 Pro
       #9

    If for some reason the Windows installation was MBR and booting in legacy BIOS mode, the battery change likely enabled secure boot and UEFI by default. You might try disabling secure boot and enabling CSM mode for booting.
      My Computer


  10. Posts : 5,829
    Win 11 Pro (x64) 21H2
       #10

    NavyLCDR said:
    If for some reason the Windows installation was MBR and booting in legacy BIOS mode, the battery change likely enabled secure boot and UEFI by default. You might try disabling secure boot and enabling CSM mode for booting.
    No need to do all that when a simple load optimized defaults would work. And Secure Boot isn't automatically enabled in the BIOS on standalone boards. The default is off because the manufacture has no idea what OS is going to be used with it. And CSM would be enabled as not all (in particular) GPU's and older hardware support UEFI.

    Again, the manufacture has no idea what hardware is going to used with the board so CSM is defaulted to Enabled, thus Secure Boot is defaulted to Disabled.

    Now if the OP made custom changes in the BIOS (as I do) then he'd have to re-do them.
      My Computers


 

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