Thank you everyone for pointing out this board. I replaced the popular Gigabyte 740g motherboard with a Biostar TA760g in my WHS box. According to my Kill A Watt, it now idles at ~27 watts when the hard drives spin down. Biostar TA760g motherboard BE-2400 processor undervolted to 1.075V 1 2GB stick ...

MiKeLezZ wrote:I have it, the differences are the one you have said. Does have ECC support. Can undervolt. Good board.

I have it on order...

What about the Biostar TA760G? It's more expensive and has 2 more memory slots, but appears to have more BIOS options.

I don't have enough posts to post a URL, but the Newegg number is N82E16813138137