Oh my, you're kidding me!
I spent a few hours troubleshooting this issue the other day on a DX79SI. I tried clearing the CMOS, swapping the nVidia card for an AMD, removing all peripherals, swapping PSU, swapping RAM, recovery BIOS update, removing sound card, re installing Windows, different HDD...
And its a stupid BIOS bug! Argh!
You know what? The USB3 on these boards is an absolute joke. If I have ANY storage device plugged in at boot, it sits at 58 for a few minutes before finally booting...
I can help you to update the Renesas USB 3.0 firmware 4021, that was released for the SR and TO boards only.
I have updated my SI board, and the long boot error is solved.
You can PM me your E-mail, and I will send you the guide how to do it + the firmware 4021 and update program.
Why Intel/Renesas can't release it for the SI board, I don't know. Perhaps they got lazy.
Hello Sylvia, in order to make the firmware updater work with the DX79SI, I use the "200(front)" version.
The 200(rear) doesn't find any device. Still you have to edit the "update_18.104.22.168.bat file".
I used the following command.
for device 08-00-00:
W200FW36 /srom 0 /address 08-00-00 /write F402103.MEM cfg.ini
for device 02-00-00
W200FW36 /srom 0 /address 02-00-00 /write F402103.MEM cfg.ini
It works for me on the DX79SI. I haven't noticed any adverse effects.