Hello everyone,
I’m hoping someone here might have experience with this kind of issue on older AMD hardware.
System (Shipping PC at work):
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Motherboard: Gigabyte GA-970A-UD3P
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Chipset: AMD 970 / SB950
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Storage: Kingston SH103S3 240GB SATA SSD
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GPU: Radeon HD 6670
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OS: Windows 11 (installed via Rufus bypass for TPM/Secure Boot)
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BIOS Mode: UEFI (was Legacy previously)
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Virtualization: Disabled (
hypervisorlaunchtype = off)
Background:
This machine used to run Windows 10 perfectly. I upgraded it to Windows 11. Installation completes, but the system randomly freezes or reboots.
I analyzed the crash dump and the bugcheck is:
Bug check code: 0x00000133
Bug check string: DPC_WATCHDOG_VIOLATION
Caused by driver: ntoskrnl.exe
So the kernel is crashing due to something timing out (likely a driver).
What I have tried so far:
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Disabled Hypervisor (
bcdedit /set hypervisorlaunchtype off) -
Disabled network adapter and USB devices during testing
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Installed drivers using Snappy Driver Installer
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Checked SSD firmware using Kingston SSD Manager (no firmware updates available)
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Verified that Windows is using Microsoft storage drivers
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Tried Windows Update drivers
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Verified that no virtualization features (Hyper-V etc.) are enabled
Current storage controller situation in Device Manager:
Under IDE/ATA controllers I see:
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Standard Dual Channel PCI IDE Controller
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AMD SATA Controller
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ATA Channel 0
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ATA Channel 1
The SSD shows as:
Kingston SH103S3 240G SATA Disk Device
Driver provider: Microsoft
Driver date: 06/21/2006
Other observations:
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System freezes seem random but often during system activity or updates.
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The machine previously ran Windows 10 without a single stability issue.
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Another PC built from my older gaming hardware shows similar freezing behavior under Windows 11.
Questions:
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Could the AMD SB950 SATA controller be causing DPC watchdog issues with Windows 11?
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Is there a recommended AHCI / modded SATA driver for this chipset that works better with Windows 11?
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Would forcing a different storahci configuration or disabling SATA power management help?
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Has anyone run Windows 11 reliably on the 970A-UD3P platform?
Any suggestions or known stable driver combinations would be greatly appreciated.
Thank you!