I'm trying to update my GA-EX38-DS5 bios, bought it in feb 2008, the board came with F1 original bios, flashed it succesfully to F2 version using the @Bios utillity (from Windows XP SP3). Meanwhile Gigabyte rolled out it's D.E.S. Advanced that allows for power saving schemes even while overclocking, to use those features though I need to flash my bios to F4 (F3 version was shortlived as it had a flaw with Intel RAID-0, it was up for a week or so before being removed and replaced on the site with F4). I installed @Bios on Vista 32-bit, turned off all apps, and my Antivir residend shield, and used the offline bios update. After hitting the "flash bios" button in 3 seconds or less, hell broke loose, I was flooded with "kernel memory failure" errors and I had to reset as the system was non responsive. Bios was corrupt, and my dual bios kicked in repairing the bad flash. I wasnt very nervous the 1st time I updated to F2, because I never had a bad flash before. Now I kind of hesitate to try again and see what happens... I know that updating BIOS is very risky, but I had confidence in my dual bios. I am curios about what I may have done wrong? Is it because I flashed from Vista? And most importantly, what would be the safest way to try again?