I'm a proud owner of an DH87RL Board since a few days and I'm confused about this behaviour:
1. My Board is flashed w/ the latest BIOS Release and runs on Win8 x64 installed on an Intel SSD with GPT.
2. Windows 8 works fine with Fast Boot
3. With Fast Boot enabled, I'm trying to engage to UEFI through 'Shift + Restart'
4. After launching UEFI all my USB Devices doesn't work and there are no Disk Drives recognized. I can't do anything! Only the Clock works..
I don't think, that it's by design! Can anybody help me ?
I am sorry to hear that have had issues with your motherboard model DH87RL.
Enabling Fast boot will disable USB ports until operating system is engaged.
I would like to know does this problem happen with an earlier BIOS version?
You can always downgrade BIOS version if you do BIOS recovery,
See instructions for BIOS recovery available below: