My Motherboard/BIOS doesn't detect USB devices (Mouse, Keyboard) when I cold boot my computer (booting after complete shutdown). BIOS is always showing me 0 Keyboard / 0 Mouse / 2 USB Hosts connected. If I press the reset button at that point, my computer reboots and BIOS will recognize all devices. Fastboot is OFF.
This means that I have to press the reset button on my computer after every cold boot. I can't figure out what's causing this
- If I don't press the reset button during first boot and let my PC continue to boot with 0 Mouse / 0 Keyboard detected, they will NOT be detected by the operating system either (Ubuntu, Windows 10, Hackintosh).
- BIOS recognizes that 2 USB Hosts are connected (front panel USB Ports on my Case)
- The LEDs of my Keyboard and Mouse stay off when they are not detected by BIOS (they don't get any power at all).
- The problem persists regardless of which Keyboard, Mouse or USB Port I use (Apple Keyboard, WASD Keyboard, Corsair K65 Keyboard, Logitech MX 518 & G502 Mouse)
I'm using the following BIOS Settings potentially relevant to USB:
POST Report: 5 Sec
- Boot up NumLock State: Enabled
- Interrupt 19 Capture
- Legacy USB Support: AUTO
- Intel xHCI Mode: Smart Auto
- EHCI Hand-off: Disabled
- Launch CSM: Enabled
- Boot device control: UEFI and Legacy OPROM
- Boot from storage devices: Legacy OPROM first
Hardware: Asus Maximus VII Hero (Z97, BIOS Version 3201 x64), Intel 4790K, 32GB RAM, GTX 1080