Question about how DDU works?

Discussion in 'Videocards - AMD Radeon Drivers Section' started by Johnarat, Mar 20, 2023.

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Do you check the two unchecked boxes on ddu and does this uninstall some stuff from the amd chipset

  1. Yes

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  2. No

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  1. Johnarat

    Johnarat New Member

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    I want to uninstall anything that belongs to AMD GPU drivers do i need to check the two unchecked boxes under amd. I have an AMD motherboard will this delete some stuff from the chipset driver as well?
    Can someone help me about this
     
  2. Chastity

    Chastity Ancient Guru

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    DDU will remove only the GPU software. The AMD Removal Tool will remove everything AMD.
     
  3. Johnarat

    Johnarat New Member

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    So should i check these two boxes to remove the gpu driver will this affect the chipset?
     

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  4. Cp0

    Cp0 Master Guru

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    Does factory reset not use AMD own removal tool which they disabled for now cos it breaks windows boot due to windows update installing PCI Bus driver during driver install, even tho it does not if windows driver updates are disabled on Windows 11 ?
    I do check option to remove chipset driver i do not trust AMD own tool currently atleast not on Windows 11.

    Check them and test it out yourself, both of those are reinstalled anyway if you reinstall radeon drivers and chipset drivers.

    edit: or well on windows 10 atleast, on Windows 11 you wont see PCI Bus be installed if you disabled Windows Driver Update which more stable with default PCI Express root complex driver, i do not think its supose to be installed cos radeon drivers do not install it on windows 11 with Windows Driver Updates disabled, but it does if its enabled, which is probably a windows 11 specific bug.
     

  5. Chastity

    Chastity Ancient Guru

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    The first option will affect chipset drivers, the second one will not. You can do both, and reinstall the chipsets after rebooting. Or just do the Audio one.
     
  6. Johnarat

    Johnarat New Member

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    Thanks for the awesome and detailed answer.
     
  7. AlleyViper

    AlleyViper Master Guru

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    Btw, amdkmpfd.sys ("Pci Bus") is also installed by the display drivers package, not the chipset one.
     
  8. Chastity

    Chastity Ancient Guru

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    I just checked the amdkmpfd package in 23.3.1, and while using the same revision of 22.40.0.2 and date, compared to the package floating around here, the filesize changed on the sys file, from 103 KB to 113 KB.
     

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