I'm building a new system with this board, and flashed the f7 BIOS to it. It refused to boot from that BIOS and booted from the backup BIOS instead. After installing Windows I used the Windows utility to flash the BIOS. I'm guessing it copied the F7 in the main bios to the backup BIOS before putting f7 in the main bios again, because now the board is totally unbootable!! If it happened in the Biosflash or in Windows I'd say it was me screwing up the bios flash, but not both times. I was already about to RMA the board because it would not POST with a TV tuner card in it (any PCI slot, even will all other devices removed, etc.) I placed the tuner in my old system and it posted fine, so it had to be the MB.
LED, you say F7 "sucks" for you. Does it at least POST and boot? If so, that's just more evidence for me that this board is defective.
The Giga-byte website only had F3 and F7 on it. In both instances, it lists the only changes to the BIOSes as CPU ID updates, which doesn't make sense.
Lastly, the F3 BIOS recognized the X2 3800+ by name, but XP never recognized the chip as dual-core. I'm starting to regret making the K8N Ultra-9 the MB for my first major PC upgrade in six years. :-(