My story:
Migrate from z87 to x99, connect everything the same way as z87.
First boot, can boot into windows, everything worked after reinstalling drivers.
I restarted and tried to enter bios (ver F5), no hope with A9 code then blank screen with signal.
Then I updated bios from F5 to F9c, no hope, same results.
Tried to clear CMOS, even worse, cannot even boot into windows.
Now I don't even know what to do.
Product Info
Product Name: GA-X99-UD4 (1.0)
BIOS Ver: F9c
Brand: ASUS
Model: STRIX-GTX980-DC2OC-4GD5
Model: Intel Core i7-5820K
Operation System: Win 8.1 64-bit
Ram Size: 4X4G
Memory Part No.: G.SKILL DDR4-2800 (PC4-22400)