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jfreeman6
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2016/08/29 18:45:12 (permalink)
I just put together a new system and I am getting a CMOS Checksum error and the system boots to the BIOS if I attempt to clear it.
The motherboard post codes are A2 and then it will cycle between 32, 33, 34, 35, and 36.
I have reset the CMOS and the problem persists.
I have removed everything but the video card, one stick of ram, the CPU, and motherboard power cable.  There are not fan, case switch, or usb headers connected.
 
Hardware:
Motherboard: EVGA Z170 FTW updated to v1.09
CPU: Intel i7 LGA 1151 6700K
RAM: Corsair Vengeance DDR4 3200Mhz 16GB
 
What am I missing?  What should I do next?  I am very stuck.
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 18:51:34 (permalink)
    New build should get a CMOS check sum error
     
     
    post edited by Cool GTX - 2016/08/29 18:54:36

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    jfreeman6
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    Re: Having problems with CMOS Checksum Error 2016/08/29 18:53:13 (permalink)
    Ok, well...how do I make it stop?
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 18:54:40 (permalink)
    Is your RAM on the approved list of MB or RAM MFG ?
     
    Load default Bios settings
    Save
    Reboot
    Load your edits and Turn Fast Boot OFF
    Set RAM to Auto with manual Voltage set to Mfg specs -- Or set RAM full manual ---- Do NOT use XMP at first
    post edited by Cool GTX - 2016/08/29 19:04:14

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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:06:04 (permalink)
    jfreeman6
    I just put together a new system and I am getting a CMOS Checksum error and the system boots to the BIOS if I attempt to clear it.
    The motherboard post codes are A2 and then it will cycle between 32, 33, 34, 35, and 36.
    I have reset the CMOS and the problem persists.
    I have removed everything but the video card, one stick of ram, the CPU, and motherboard power cable.  There are not fan, case switch, or usb headers connected.
     
    Hardware:
    Motherboard: EVGA Z170 FTW updated to v1.09
    CPU: Intel i7 LGA 1151 6700K
    RAM: Corsair Vengeance DDR4 3200Mhz 16GB
     
    What am I missing?  What should I do next?  I am very stuck.


    You have the CPU 4/8-pin (PSU) and the 24-pin connected ?

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    jfreeman6
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:11:09 (permalink)
    Yes, I have both the 8 pin and 24 pin connected. 
     
    I turned fast boot off and set the memory to manual at the mfg specification.  It got into a post loop ending in 4C...which is not in the list in the manual
    Now I have reset the CMOS and it is putting up a new error, A6, which is SCSI Detect...  That is the first time I've seen that...
    post edited by jfreeman6 - 2016/08/29 19:13:58
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:16:29 (permalink)
    Did it BOOT with the default BIOS loaded or stop on a code
     
    The Post DeBug display will show CPU temp after Post completes
    post edited by Cool GTX - 2016/08/29 19:45:14

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    jfreeman6
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:18:58 (permalink)
    It stops on A2.  Ok, that makes sense why I keep seeing 32, 33, 34, ect...
     
    After it stops on A2 it says CMOS Checksum error.  It gives me an option to skip F1 or go to setup F12.  Either options takes me to the BIOS.
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:34:18 (permalink)
    jfreeman6
    It stops on A2.  Ok, that makes sense why I keep seeing 32, 33, 34, ect...
     
    After it stops on A2 it says CMOS Checksum error.  It gives me an option to skip F1 or go to setup F12.  Either options takes me to the BIOS.


    This is with default BIOS settings ?

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    jfreeman6
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:35:50 (permalink)
    Yes
    #10
    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:37:15 (permalink)
    jfreeman6
    It stops on A2.  Ok, that makes sense why I keep seeing 32, 33, 34, ect...
     
    After it stops on A2 it says CMOS Checksum error.  It gives me an option to skip F1 or go to setup F12.  Either options takes me to the BIOS.


    A2 IDE Detect
    A3 IDE Enable
     
    BIOS looking for your HD

     
    What kind of drive are you booting from
    post edited by Cool GTX - 2016/08/29 19:48:18

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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:41:26 (permalink)
    Are you using SSD ? set IDE to ACHI
     
    UEFI or legacy BIOS ?
     
    NVMe Drive ?
     
    What OS are you using ?
    post edited by Cool GTX - 2016/08/29 19:45:37

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    MDeckerM
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:50:05 (permalink) ☄ Helpfulby jfreeman6 2016/08/29 20:08:11
    A2 is what you will see if Bios has not been configured or you have cleared CMOS.
     
    A6 is what you will see while you are inside bios.
     
    Unless you have a master boot record on a drive associated with the motherboard you will not load into windows. It will keep booting into bios unless you have installed windows properly and your boot settings are set correctly.
     
    To me, it sounds like you are trying to use a hard drive that you have windows installed on from a previous system on this new motherboard and that is why you are confused.
     
    You will need to completely reformat and install windows on this new motherboard if that is the case.
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/29 19:59:14 (permalink)
    EVGATech_MDecker
    A2 is what you will see if Bios has not been configured or you have cleared CMOS.
     
    A6 is what you will see while you are inside bios.
     
    Unless you have a master boot record on a drive associated with the motherboard you will not load into windows. It will keep booting into bios unless you have installed windows properly and your boot settings are set correctly.
     
    To me, it sounds like you are trying to use a hard drive that you have windows installed on from a previous system on this new motherboard and that is why you are confused.
     
    You will need to completely reformat and install windows on this new motherboard if that is the case.


    +1
     
    Great job reading between the lines

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    jfreeman6
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    Re: Having problems with CMOS Checksum Error 2016/08/29 20:08:29 (permalink)
    EVGATech_MDecker
    A2 is what you will see if Bios has not been configured or you have cleared CMOS.
     
    A6 is what you will see while you are inside bios.
     
    Unless you have a master boot record on a drive associated with the motherboard you will not load into windows. It will keep booting into bios unless you have installed windows properly and your boot settings are set correctly.
     
    To me, it sounds like you are trying to use a hard drive that you have windows installed on from a previous system on this new motherboard and that is why you are confused.
     
    You will need to completely reformat and install windows on this new motherboard if that is the case.




    I think that this is the problem as well.  This is what I am attempting now.
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    MDeckerM
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    Re: Having problems with CMOS Checksum Error 2016/08/29 20:39:06 (permalink)
    jfreeman6
    I think that this is the problem as well.  This is what I am attempting now.

     
    Please let us know if you get hung up along the way or have any other questions
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    KenMcC
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    Re: Having problems with CMOS Checksum Error 2016/08/30 10:12:36 (permalink)
    Format if HDD before reinstall.  You might have a ROOT virus.  I believe for a SSD you need to do ONLY a Quick Format as SSD should never be Full Format. 

    KenMcC
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    Cool GTX
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    Re: Having problems with CMOS Checksum Error 2016/08/30 11:04:05 (permalink)
    KenMcC
    Format if HDD before reinstall.  You might have a ROOT virus.  I believe for a SSD you need to do ONLY a Quick Format as SSD should never be Full Format. 


     
    +1
    Only have the 1 drive attached when installing Windows -- Microsoft will span install file onto every HD it can access.  If you later remove on of the additional drive -- Windows will fail to load.
     
    Glad to help get you sorted out

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