Ditt moderkort ska visst ha "dualbios" om det är denna du har: https://www.gigabyte.com/Motherboard/Z390-GAMING-SLI-rev-10/s...
Beskrivning utav Gigabytes dualbios: https://www.gigabyte.com/microsite/55/tech_081226_dualbios.ht...
(Ditt moderkort verkar inte vara listat där men det kan bero på att dom inte uppdaterat denna sidan.)
Dessutom ska moderkortet ha stöd för Q-flash+: https://download.gigabyte.com/FileList/Manual/mb_manual_z390-...
(Det vill säga att man ska kunna flasha bios utan CPU/minne installerat. Detta brukar väl i dagligt tal kallas för "flashback"?)
Men som skrivits tidigare, börja med en CMOS-reset.
Utklipp ifrån Q-flash Plus sektionen i manualen:
(Ser ett fel i manualen, det verkar inte finnas en vit usb-port på bakre panelen.??)
"- 6 -1-3 Using Q-Flash PlusA.
Before You Begin
1. From GIGABYTE's website, download the latest compressed BIOS update file that matches your motherboard model.
2. Uncompress the downloaded BIOS file, save it to your USB flash drive, and rename it to GIGABYTE.bin.
Note: The USB flash drive must use the FAT32/16 file system and it must be a USB 2.0 flash drive.
3. Insert the USB flash drive into the white USB port on the back panel.
B. Using Q-Flash PlusIf both the main and backup BIOS fail during system boot, wait for 15-20 seconds, the system will automatically search and match the BIOS file in the USB flash drive on the white USB port.
The FBIOS_LED will flash when the BIOS matching and flashing activities start.Wait for 2-3 minutes and the FBIOS_LED will stop flashing when the main BIOS flashing is complete.After the main BIOS is flashed, the system will reboot automatically and then DualBIOS™ will continue to update the backup BIOS. After completion, the system will reboot again and boot from the main BIOS for normal operation.
