Hello, I built my system in July 2014 using the Maximus VII Hero motherboard, the boot times never used to be an issue but over the last couple months or so i've noticed my system taking forever to boot up and i suspect it is USB related.

So, i hit the power button and the system will sit on a qcode of '64' and then '99' and then 'AE' before eventually booting literally a minute or 2 later.. I've noticed that if i unplug a USB device like my keyboard or mouse etc when the system is sat on one of these codes that it then clears and boots so i'm not sure if this is USB related but it seems so.

I just formatted a week ago and installed Windows 10 Pro 64bit, i cleared the CMOS prior to installing as well as secure erasing everything for safe measure. My BIOS setup is basically stock apart from Asmedia controller being disabled, XMP being setup and fan profiles setup. Anyway, PC specs below

CPU - Intel i7 4790K @ stock
MB - Asus Maximus VII Hero - BIOS 3103
RAM - 16GB (4x4GB) Corsair Vengeance CMZ8GX3M2A1600C9R
HDD - Seagate 1TB ST1000DM003
SSD - Samsung 256GB 850 Pro & Samsung 128GB 830
PSU - EVGA SuperNOVA 1000w P2 220-P2-1000-XR
GPU - EVGA GTX 780 Ti Superclocked 3GB 03G-P4-2883-KR
Case - Corsair 900D
USB Devices - Corsair Strafe MX Silent RGB, Razer DeathAdder 2013, Logitech C920 Webcam, Blue Yeti Microphone, USB3 External 1TB HDD
Monitor - Asus VG278HE

Think that's everything, any suggestions would be greatly appreciated!