Solved How can I track down bad driver causing system interrupts?

mindaugas

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Littleton, CO
I have an HP laptop (HP g7-1320dx) that I am trying to put Windows 8 on. After installing and even in safe mode the CPU is pegged with system interrupts. 30-40% consistently. I have another HP laptop that I can use a donor so ... I swapped out the RAM, hard drive (spindle and SSD), the DVD drive, the wireless card, remove all USB devices, different power adapter, with and without battery, only batter with no power adapter. I also tried disabling (in device mgr) the sound, the web cam, anything I can disable that isn't necessary. All drivers are updated. I tried both HP's drivers and direct from manufacturer where I could (realtek, AMD). Rebuilt a few times.
There is one unknown device which I have not been able to track down a driver for. I don't think that would cause the issue though since the driver wouldn't be loaded.
Perhaps this isn't a driver issue and the system interrupts are from something else. But in my experience (I'm a sys admin) and from all my googling system interrupts = bad driver.
Anyone know a good way to track down what driver it is? It's obviously something I cannot swap out or disable.
 

My Computer

System One

  • OS
    Win8 | Win8 Pro
    System Manufacturer/Model
    Acer Aspire E1-571 | PC
    CPU
    Core i3 3110 | Celeron e3400 @ 3.3GHz
    Motherboard
    Acer | Asus P5G41-M LX Plus
    Memory
    4GB DDR3
    Graphics Card(s)
    Intel HD4000 | Radeon 6870
    Sound Card
    SB Live 24-bit External
    Monitor(s) Displays
    15" | 22" + 20"
    Screen Resolution
    1366x768 | 1080p
    Hard Drives
    120GB SSD | 750GB Hybrid
    PSU
    OCZ 500W
    Case
    Gigabyte
    Cooling
    Stock
    Keyboard
    Kensington
    Mouse
    MS 5000
    Internet Speed
    Comcast 20Mbs+
    Other Info
    Laptop | PC - Extreme bang for the buck :)

My Computer

System One

  • OS
    Win 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home Built
    CPU
    i7 6700K
    Motherboard
    ASUS ROG Maximus VIII Hero
    Memory
    16 Gb G Skill TridentZ DDR4 3400
    Graphics Card(s)
    Intel (i7 CPU)
    Sound Card
    RealTek Integrated
    Monitor(s) Displays
    27" Dell SE2717HR
    Screen Resolution
    1920X1080
    Hard Drives
    500GB Samsung 850 SSD, 3TB for backups
    PSU
    EVGA Supernova 750 G2
    Case
    BeQuiet Silent Base 600
    Cooling
    Deepcool Captain 120EX
    Keyboard
    Microsoft Wireless
    Mouse
    Logitech wireless
    Internet Speed
    Cable - 100MB Downlink
    Browser
    Edge/Firefox
    Antivirus
    Microsoft
    Other Info
    Sonar Platinum 64 bit recording studio software with MOTU 896Mk3 Hybrid recording interface unit.
I've been using their Registrar Registry Manager for awhile now; cautiously, carefully, with good results.
 

My Computer

System One

  • OS
    Windows 7 Pro 64bit [MS blue-disk set]
    Computer type
    PC/Desktop
    System Manufacturer/Model
    2 Acers & 1 Antec[?]
    CPU
    i7 in 2 Acers, i5 in desktop
    Motherboard
    Desktop w/Gigabyte
    Memory
    Two w/16GB, 1 w/8GB
    Graphics Card(s)
    Laptops GameWorthy; Desktop maybe GameWorthy
    Monitor(s) Displays
    flatscreens; 2 are BluRay worthy
    Screen Resolution
    1368x768; 1600x900
    Hard Drives
    1TB internals; 2 ext usb WD 1TB HDs
    PSU
    what's PSU?
    Cooling
    Regular plus external fans
    Keyboard
    desktio w/PS2
    Mouse
    desktop w/PS2
    Internet Speed
    DSL middle level [160?]
    Browser
    from Netscape 0.9 to FF 36
    Antivirus
    well-balanced, well-configured mult-layered defense is best
    Other Info
    From MS-DOS 3.3, MS-DOS 6.22, from Windows 3.1 to WFW 3.11 to Windows 95-98SE, now to Windows 7 Pro.
    Security for now: Windows 7 Firewall, Emsisoft AM, MSE [scan-only], SpywareBlaster, Ruiware/BillP combine

My Computer

System One

  • OS
    Win 8.1.1 Pro x64
    Computer type
    Laptop
    System Manufacturer/Model
    Lenovo E525
    CPU
    AMD A4-3300M @ 2,0GHz
    Memory
    6GB DDR3 1333MHz
    Graphics Card(s)
    AMD Radeon HD 6480G 512MB shared
    Sound Card
    Creative Sound Blaster X-Fi Surround 5.1
    Screen Resolution
    1366x768
    Hard Drives
    WD 465GB
    Cooling
    Fusion Tweaker
    Keyboard
    Logitech K360
    Mouse
    Logitech M705
    Internet Speed
    50/50 MBps
    Browser
    Yandex
    Antivirus
    No AV & No Firewall
    Other Info
    Headphones: Sennheiser RS170
Last edited:

My Computer

System One

  • OS
    Win8 | Win8 Pro
    System Manufacturer/Model
    Acer Aspire E1-571 | PC
    CPU
    Core i3 3110 | Celeron e3400 @ 3.3GHz
    Motherboard
    Acer | Asus P5G41-M LX Plus
    Memory
    4GB DDR3
    Graphics Card(s)
    Intel HD4000 | Radeon 6870
    Sound Card
    SB Live 24-bit External
    Monitor(s) Displays
    15" | 22" + 20"
    Screen Resolution
    1366x768 | 1080p
    Hard Drives
    120GB SSD | 750GB Hybrid
    PSU
    OCZ 500W
    Case
    Gigabyte
    Cooling
    Stock
    Keyboard
    Kensington
    Mouse
    MS 5000
    Internet Speed
    Comcast 20Mbs+
    Other Info
    Laptop | PC - Extreme bang for the buck :)
Great suggestion, thanks!
 

My Computer

System One

  • OS
    Win8 | Win8 Pro
    System Manufacturer/Model
    Acer Aspire E1-571 | PC
    CPU
    Core i3 3110 | Celeron e3400 @ 3.3GHz
    Motherboard
    Acer | Asus P5G41-M LX Plus
    Memory
    4GB DDR3
    Graphics Card(s)
    Intel HD4000 | Radeon 6870
    Sound Card
    SB Live 24-bit External
    Monitor(s) Displays
    15" | 22" + 20"
    Screen Resolution
    1366x768 | 1080p
    Hard Drives
    120GB SSD | 750GB Hybrid
    PSU
    OCZ 500W
    Case
    Gigabyte
    Cooling
    Stock
    Keyboard
    Kensington
    Mouse
    MS 5000
    Internet Speed
    Comcast 20Mbs+
    Other Info
    Laptop | PC - Extreme bang for the buck :)
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