ASUS sucks, hands down. They used to be top mobo makers, but now their quality is slipping and tech-support is nonexistant unless you speak taiwanese. This is just my opinion Blind_Arrow just like you not liking ABit is yours so please don't come back with "whatever abit sucks asus rocks" cause we each have our own opinion and I respect your opinion of liking ASUS and not ABit. I've flashed this ABit board more than 10 times and only had one problem and that was because I messed up and chose the wrong BIOS. I've used their flash utility time and time again and as long as you choose UPDATE FROM FILE and have your own BIOS selected on your desktop you'll be fine. I've never had a problem with it that way. I've heard that simply doing the 'Update BIOS from server' can be somewhat iffy.
as in Asus, old BIOS is only replaced, once new BIOS is installed completely
It doesn't matter if you picked the wrong BIOS to begin with which I believe is what he did. Besides, if you are halfway through flashing your BIOS with any board and power is interuppted, then you're pretty much screwed. It's gotta start writing the BIOS immediately and writing the boot sector as soon as you go to flash it so it's not like ASUS has some magical ability to not screw up a BIOS flash.
The only time I've seen a flash go wrong is USER ERROR. I have yet to see a BIOS flash that was caused from bad hardware or a bad winbased flash utility.
This is including ASUS, MSI, and ABit as I've flashed each of those brands of boards.