OK a couple of things:
Have you already selected "Load Optimized Defaults" in BIOS? If not, do so.
I would also try "Fail Safe Defaults" just for kicks and grins.
I do not install Beta BIOS versions, personally. That means the newest BIOS upgrade I would install is F8. If you are brave you could try F9E.
The safest way to flash a BIOS is from the BIOS Utility, not from an OS.
For that you would use Q-Flash.
I assume you do not have a floppy disk drive and/or floppy disks.
Because you can not access a USB stick in BIOS I would place the BIOS update download file on the hard disk and access it from there. To do this you need to:
- Create a partition on your hard drive, temporarily, of any size, that is formated FAT32. You can not use a NTFS partition for this.
- Label the partition something unique and 8 characters or less. "DIRT" would work.
- Put the BIOS update download on that partition (with nothing else on it).
Read and carefully follow the instructions for navigating and using Q-Flash on page 66 of your manual here: http://download.gigabyte.us/FileList...78g-ds3h_e.pdf