That board is definitely an Atom. Specifically a 1.66 GHz, dual-core "Atom 330". I have the same board in an ultra-small chassis as my home theater PC. The "D945GCLF" with no '2' on the end has the single-core "Atom 230", which, aside from only having one core, is nearly identical.
The VGA port on mine is dead, and I could never get OS X to boot with video out over the S-Video port. I did lots of research about getting OS X on it, and pretty much everything is fully supported. But no boot-to-S-Video, so I couldn't do it. So it's running Vista Home Premium, and I use a USB IR receiver and remote for Windows Media Center. It works great for Netflix.
P.S. Intel does make a Core 2 compatible motherboard that is the same physical size: DG45FC (codename "Fly Creek".) It can even take quad-cores if you get the low-power "Core 2 Quad S" series chips. But, even with dual-core, it does draw noticeably more power than the D945GCLF2 (codename "Little Falls 2".) But the Fly Creek has enough graphical power to play Blu-ray. (And do some light gaming.)
The VGA port on mine is dead, and I could never get OS X to boot with video out over the S-Video port. I did lots of research about getting OS X on it, and pretty much everything is fully supported. But no boot-to-S-Video, so I couldn't do it. So it's running Vista Home Premium, and I use a USB IR receiver and remote for Windows Media Center. It works great for Netflix.
P.S. Intel does make a Core 2 compatible motherboard that is the same physical size: DG45FC (codename "Fly Creek".) It can even take quad-cores if you get the low-power "Core 2 Quad S" series chips. But, even with dual-core, it does draw noticeably more power than the D945GCLF2 (codename "Little Falls 2".) But the Fly Creek has enough graphical power to play Blu-ray. (And do some light gaming.)