Nope, it was an update from ATi for the 3850 & 3870 cards.It was basically to fix the fan issues so that the fan would spin up at a lower temperature and at a faster rate at higher temps to keep the cards from going into the 95*C range.The device ID and everything is the same, but for some reason it doesn't like the packages I've seen here on the site.I was using a package posted by eddie11c to go along with his Leo4All distribution and it worked right up until that BIOS update.Now the OS won't boot. I tried a re-install and sure enough the OS works right until I load up the drivers and then it stops booting again.
Bios update from apple update ?
What BIOS and what maker are you referring to?The ATi BIOS that I know of are v103 for the 3850 and v104 for the 3870.Those are the "fixed" BIOS that actually operate the fan correctly.The problem that was happening was that the fan typically wouldn't go much over 25% and it was causing cards to really screw up.
as i say before the speed fun is controlled by the bios of the video card. So, if the GPU increase the temperature the fun increase the speed. in bios 073 the fun is slower but the temperature culd arrive at 85°Cin bios 071 the fun is faster and the temperature culd arrive at 60°C but have more noise