Solved Intermittent failures on USB 3 ports on new mobo

EdTittel

New Member
Guru
mvp
Messages
22
Location
Round Rock, TX, USA, Planet Earth
I've been struggling for two months to fix a situation where one or more USB 3 ports on my PC would fail, usually --but not always -- under heavy I/O loads. Read about the problem and my ultimate fix at Unraveling a USB Mystery | Ed Tittel. Sometimes, you just have to replace the wonky hardware with a known good working replacement. Sigh.
--Ed--
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    White box
    CPU
    i7 2600K
    Motherboard
    GA Z77X-UD3H
    Memory
    32 GB F3-10666
    Graphics Card(s)
    Nvidia GTX-750 Ti
    Sound Card
    Real-Tek HD Audio (mobo)
    Monitor(s) Displays
    2 x Dell 2707 WFP
    Screen Resolution
    1980 x 1020
    Hard Drives
    OCZ Vertex 4 256 GB
    2x Jmicron RaidO 2xEVO256 GB
    2xToshiba 3GB drives
    Other drives as needed
    PSU
    SeaSonic 650W 80-Plus Gold
    Case
    Antec Nine Hundred Two
    Cooling
    1 x 200 mm top fan, 6 x Nexus 120 mm fans
    Keyboard
    MS Comfort Curve 4000
    Mouse
    Logitech M325
    Internet Speed
    100 Mbps and up (Road Runner Turbo Internet)
    Browser
    IE 11, Chrome, Firefox, Safari
    Antivirus
    NIS 2015
    Other Info
    Asus Blu-ray Optical Player
    Axiom Audio amp/sub/speakers (2.1)
    APC 1500W UPS
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