I too own a Biostar A760G which boots fast, but the ECS A885GM-A2 boots slow and I cant seem to find a way to get it to boot faster. Its a very minor problem.
Other then that, I like the board it runs very well and fast after boot
I have 6 3tb drives ST3000DM001, parity checks at 5 1/2 hr @ 145MB/sec
Edit: When i talk about booting i mean bzroot load times