Windows: Line-Based vs. Message Signaled-Based Interrupts. MSI tool.

Discussion in 'Operating Systems' started by mbk1969, May 7, 2013.

  1. Leon77

    Leon77 New Member

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    the solution is " IOAPIC 24-119 Entries" on disable within the bios
     
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  2. EternalStudent07

    EternalStudent07 New Member

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    Just trying this out and noticed something odd for the driver names. This is with v3 on Windows 10 with latest OS updates.

    If I look in Device Manager with view set to "Resources by type" then look in the IRQ group, I get one driver name for all my audio devices ("High Definition Audio Controller" by Microsoft). But in the default view of "Devices by type", I get more specific driver names - one Intel High Definition Audio, two NVIDIA High Definition Audio (and an "NVIDIA Virtual Audio Device (Wave Extensible) (WDM)"), and one Realtek High Definition Audio. Maybe there is a different driver name you can find for those IRQ devices?

    I'd managed to turn on MSI mode for 3 of 4 audio devices and I was trying to figure out which wasn't letting the mode change. I'm guessing it's the onboard audio, the Realtek one. The rest are display audio outputs (for HDMI or displayport output), and their GPU drivers work in MSI mode so I'm guessing the audio should too. Intel's drivers were mostly at a default of MSI mode.

    Other than the single audio device that won't let me switch modes (setting turned off after a reboot), I have two "Standard Enhanced PCI to USB Host Controller" entries that don't list MSI support.
     
  3. Astyanax

    Astyanax Ancient Guru

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    intel spec hd audio drivers are for endpoints, they all terminate in the root controller using the high definition audio driver (hdaudbus.sys) which is also intel hd spec.

    the root controller is where the IRQ is, rather than the endpoints

    No, its the nvidia virtual audio device, it doesn't connect to a physical device so it doesn't use a real irq but emulated instead.

    Thats not how PCIE adapters work,
    the GPU itself has a completely seperate IRQ from the HD Audio root controller,

    This is why, if the GPU goes into protect mode (black screen crash) the hd audio can still continue streaming to a hdmi receiver.
     
    Last edited: Mar 22, 2022
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  4. mbk1969

    mbk1969 Ancient Guru

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    @EternalStudent07

    Notes to identify some of audio and video devices.

    Select device in MSI utility v3, see "Instance ID" property in "Device PNP properties" group.
    It looks like "PCI\VEN_10EC&DEV_522A&SUBSYS_10001458&REV_01\4&633C680&0&00E0".
    "VEN_NNNN" part contains vendor ID (where "NNNN" is sequence of hexadecimal digits in upper case).
    "VEN_10EC" is Realtek
    "VEN_10DE" is NVIDIA.
    "VEN_8086" is Intel
    "VEN_1002" is AMD

    In case of videocard one PCI-E device has two functions - video output and audio output.
    So you will see something like (in "Device PNP properties" group):
    - "Location : PCI bus 0, device 26, function 0" - for videocard;
    - "Location : PCI bus 0, device 26, function 1" - for "High Definition Audio Controller";
    - and you will see the same "VEN_NNNN" parts in "Instance ID" for both.
     

  5. VoVranic

    VoVranic New Member

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    Did you also noticed improve in other games than FF7? I tested it in like 10 other games and they are more smooth also less stutter when loading something.
     
  6. Warkratos

    Warkratos Member Guru

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    upload_2022-3-31_5-7-37.png

    New Motherboard and CPU. Any tips on this?
     
  7. EdKiefer

    EdKiefer Ancient Guru

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    Just enabled MSI mode on the 2060 and if you want the Nvidia HD audio (look up two post for info picking that one out from Realtek or other HD audio controllers.
     
  8. MARS666

    MARS666 New Member

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    Guys is everything is correct with my system? Thanks!
     

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  9. mbk1969

    mbk1969 Ancient Guru

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    You can switch both High Definition Audio controllers to MSI mode.

    I see 3 storage controllers - 2 SATA and 1 NVMe. Are you sure you use all of them? If not it is better to disable unused ones in BIOS.

    Also I see 2 network controllers - I210 Gigabit and I219-V. It is better to disable unused ones in BIOS. Generally speaking I219-V is old one but if you use it then switch it to MSI mode too.
     
  10. Ahmet Hasan

    Ahmet Hasan Member

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    Hi dude. Can you look those too.Thank you.
     

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  11. mbk1969

    mbk1969 Ancient Guru

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    You better use newest version of MSI utility, because it shows more correct/full information.
     
  12. Astyanax

    Astyanax Ancient Guru

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    i210 is on a CPU lane, supports 4 RSS queues.
    i219 is on the PCH dedicated ethernet port.

    imo, you'll never notice a performance or latency difference from the NIC being on the PCH vs being on a cpu lane.
     
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  13. PanosXidis

    PanosXidis Active Member

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    @Astyanax i think same latency and perfomance no change something
     
  14. Ahmet Hasan

    Ahmet Hasan Member

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    How about that?
     

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  15. PanosXidis

    PanosXidis Active Member

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    @mbk1969 i have Intel i219v and Aquantia 10G i dont know what is better for gaming?whats your opinion?
     

  16. mbk1969

    mbk1969 Ancient Guru

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    We see that all devices work in MSI mode.
    Also we see that network card uses 32 IRQs, which is useful only on servers. You can limit number of IRQs either to "1" or to CPU cores number. And test network after.
     
  17. mbk1969

    mbk1969 Ancient Guru

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    I am not an expert on network cards. Also any PC configuration is unique combination of HW, FW, SW and user chosen settings/tweaks, so any device can work better or worse in your rig.
    My point is to disable unused devices. So choose one controller by your impressions.
     
  18. Athlonite

    Athlonite Maha Guru

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    If the Aquantia is an AQC107 make sure you have the latest firmware from Marvel along with the driver which you can grab from Marvels website here

    https://www.marvell.com/support/downloads.html#
     
  19. PanosXidis

    PanosXidis Active Member

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  20. PanosXidis

    PanosXidis Active Member

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    @mbk1969 one is pci express with MSI-X support and intel i219v MSI only
     

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