Ud3 X99 black screen on Bios

[Janka75]

Hello all,
I've purchased a X99 UD3 mobo last week, assembled with a 5930k, 16Gb Kingston HyperX, Zotac Gtx 680, Corsair ForceGT SSD, Sandisk SDSSDHII120gb, WD Raptor 10.000rpm and WD 1Tb Sata HD.

The motherboard doesn't boot from os Hd and if I try to go into bios the screen remains black. Also if I hit F12 on boot I can choose the Corsair HD and windows 10 starts correctly, but if I try to enter setup using del key, or also choosing "Enter setup" from boot Menu, the screen remains black.

I've tried 3 different monitors and cables... this is the first Gigabyte mobo that gives me problems from 9 years and other 3 different motherboards.

I've flashed the latest F20 bios but nothing changed.

[dmdilks]

It is one the HHD's that is causing the black screen trying to get into the bios. This is known fact with these boards. Try and disconnect one drive at a time to see if you can get into the bios. It could be all the drives or it could just be one. It is the way the drives are setup.

http://forum.giga-byte.co.uk/index.php?topic=16246.0

[Janka75]

I tried to unplug the Sandisk SSD and the bios failed, but when I started again with all peripherals I saw that the Corsair SSD changed position in the Boot manager menu.
So I unplugged the Sony BD Writer which was in first position in the boot manager, and the WD Raptor which was in second position and it worked!
Windows started without the boot manager and I can enter bios. After I shut down my pc and re-attached all windows starts without boot problems.