Frequent & random BSOD ahcix64s.sys & ntoskrnl.exe

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  1. Ztruker
    Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       New #11

    Yup, all the latest du8mps are the same ahcix64s.sys error.
    Code:
    BugCheck D1, {ffffc2fe50274000, 7, 1, fffff80d373a390c}
*** WARNING: Unable to verify timestamp for ahcix64s.sys
*** ERROR: Module load completed but symbols could not be loaded for ahcix64s.sys
    Mixed memory can sometimes cause weird problems like this. As a test, remove the 1GB DIMM and make sure the two remaining are in the blue sockets per this note from the Users Manual:
    Code:
    NOTE: Install the memory modules into the blue sockets
first, starting with the largest capacity module placed in
the socket closest to the processor on the motherboard.
    Are you overclocking your system at all? If yes, reset everything to default and test.

    Other than that all I can suggest is to remove the current SATA controller drivers and use the Microsoft default. See this post for how: iaStorA.sys causing BSOD - Windows 10 Forums
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  3. PCGuy53
    Posts : 52
    Windows 10 64 bit
    Thread Starter
       New #12

    I forgot to mention that the system is not overclocked.

    I checked the memory, and of course, HP didn't put the two 4 gig ram sticks in the blue slots. In order to swap the ram and remove the 1 gig stick, I had to remove my video adapter.

    I must have bumped one of the drive SATA cables, because when I tried to restart, BIOS said the RAID array was critical, and had lost one of the drives. I reseated the cables and did a quick BIOS check on both drives & they were ok.
    The RAID array was still critical, but from my limited past experience, I knew that the rebuild would need to be done in Windows.
    A
    I then got an unumountable boot volume error. When trying to get to Windows repair multiple times, the USB keyboard & mouse were not detected. Tried different keyboard & ports, along with a USB Windows repair drive. No luck. I was able to boot to a third party USB drive ok. This showed 2 single drives instead of 1 RAID array.

    After much weeping, wailing, and knashing of teeth, I got the system booted. Because I had tried several versions of AMD RAIDXpert, it took a while to get back to the RAIDXpert web interface. I am currently rebuilding the RAID array. It's at 5% after 5 hours, so this is going to take a while.

    Hopefully the system won't crash during the rebuild.

    If I decide to get rid of the AMD RAID controller software, will there be a way with the Microsoft drivers to rebuild the RAID array if needed?

    Ken
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  4. Ztruker
    Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       New #13

    If I decide to get rid of the AMD RAID controller software, will there be a way with the Microsoft drivers to rebuild the RAID array if needed?
    I know nothing about RAID. Never used it and don't see any reason to do so now, sorry.

    Curious, why are you using RAID? What advantages does it give you?
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  6. PCGuy53
    Posts : 52
    Windows 10 64 bit
    Thread Starter
       New #14

    I ordered RAID mainly for redundancy. If one drive fails, which has happened, you don't lose any data. You replace the failed drive, rebuild the RAID array, and keep on going without data loss or down time to restore from a backup, which may or may not be current.
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  7. Ztruker
    Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       New #15

    Makes sense. I don't mind a little down time as it takes me about 30 minutes to restore from backup.

    I guess when RAID works right it's nice but I've read so many threads over the years of significant problems it just didn't seen worth the effort. Nice to see where it works well (probably most RAID setups work well and it's only the problem ones I read about).
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  8. PCGuy53
    Posts : 52
    Windows 10 64 bit
    Thread Starter
       New #16

    Frequent & random BSOD ahcix64s.sys & ntoskrnl.exe


    After all of these problems, I may re-evaluate my RAID usage and backup methods.

    The RAID rebuild is speeding along. 10% done after 9 1/2 hours!!

    Once the rebuild is done I will look for a backup program besides the legacy windows 7 backup in Windows 10. It keeps canceling itself.
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  9. Ztruker
    Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       New #17

    Most of us here use Macrium Reflect Free or Pro (I have Pro).
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  10. PCGuy53
    Posts : 52
    Windows 10 64 bit
    Thread Starter
       New #18

    Frequent & random BSOD ahcix64s.sys & ntoskrnl.exe


    The system blue screened overnight. It is only stable now in Safe Mode. I have been manually copying data to an external 1 TB drive, since I cannot install Macrium in Safe Mode. Once I get my data backed up, I may try removing the RAID. It may have already broken into two separate drives.

    I won't be able to get back to it for about week though.
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  12. Ztruker
    Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       New #19

    No problem. We'll still be here. Just update this thread and I'll see it.
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  13. PCGuy53
    Posts : 52
    Windows 10 64 bit
    Thread Starter
       New #20

    Frequent & random BSOD ahcix64s.sys & ntoskrnl.exe


    I haven't had any BSODs for a week or more. With all of the crashing, rebooting, and attempts to repair the RAID 1 array, the array broke, so Windows showed 2 separate drives instead of 1. I backed up what data I could, then deleted the RAID array in BIOS and changed the drives in BIOS from RAID to AHCI & rebooted.
    Lo & behold, my partitions and data were still there. I booted to Safe mode and disabled ahcix64s.sys with Autoruns.

    I formatted my now unused 2nd drive, and used Macrium Reflect to backup the system to it. I may create a 2nd backup job to backup to an external drive.

    No more BSODs!! Now on to fix the other problems with the system.

    Thanks for your help. You can close this thread now.
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