I have a Gigabyte GA-EP35-DS3R MB that has onboard a Gigabyte SATA chip (1 x IDE connector supporting ATA-133/100/66/33 - 2 x SATA 3Gb/s connectors.)
The controller seem to function properly, but has an annoying side effect. Whenever the chip is turned on in the BIOS the case IO activity light constantly blinks at the rate of about once each second. I have used Perfmon to monitor disk activity and even when Perfmon shows an idle system relative to disk activity the IO light continues to blink.
Under VISTA the blinking activity light is present in both a new OOTB configuration and one with the Gigabyte SATA controller driver loaded.
I don't think that this is a VISTA problem, since the blinking light also occurs when the system is booted with a BartPE CD.
Any suggestions on fixing this annoyance (other than turning off the Gigabyte chip via the BIOS)?
Crashman has a point. AHCI doesn't give a $h!t if you're booted into a CD or an OS, it's going to check for added devices once a second because it supports hot swappable drives. It can't be that annoying unless you just thought something was wrong. You can turn AHCI off in BIOS but I'd leave it enabled. Besides, I wouldn't worry about how much it blinks unless the son of a b!tch starts blinking while the computer's off. That's when I'd worry about it....
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