В двух словах: поддержка Gigabyte сказала, что их материнки поддерживают только Windows, ставьте Windows. Это дословно.
If you have an affected motherboard to the ASPM power regression in the Linux kernel and it's from Gigabyte, don't expect a BIOS update from them to correct the ASPM semantics in the BIOS. Gigabyte recommends you just use Microsoft Windows.
Цитата от Gigabyte:
Thank you for your kindly mail and inquiry. About the issue you mentioned, since our products only support Windows OS, we do not receive proper driver from chipset vender, we cannot guarantee Linux to work on our system. We suggest you to install Windows OS to prevent having problems. If you install the Windows OS and still have any problems, please provide the error message screenshot for us, so we can try to see how to help. Sorry for the inconvenience.