I have one and I don't like it much.
The cpu vcore with the newest bios goes to 1.80v with the original bios it went to 1.825v
Whenever the cpu voltage is set to anything but the default it won't reboot. I have to turn off the power and back on to get a boot again.
I contacted gigabyte several times in hopes they would look into it but I only got dumb replies saying they do not support overclocking and when I told them this was at the default cpu speed they said the cpu should only be used at the default voltage.
Besides that its ok I was not able to overclock any more than with my abit vh6-ii
STR=suspend to ram.
Its like a standby mode for power conservation.
You can download the manual for it from gigabyte.