Boot problems

I have a problem when booting my comp, all goes fine up to where it says STARTING WINDOWS where it displays the windows logo, then it just hangs.
I have an ASUS P6T WS pro m/b, Intel 3.2 i7 cpu. win 7 32bit.
I have removed all cards and hard drives except video and boot drive, it still hangs.
Have tried to install win 7 on a new formatted drive, but when it comes to the last boot up it hangs just the same,
the only thing that is on m/b is video card and boot drive everything else has been removed, I believe it's the m/b as the video will only work in one PCle slot.
I have 3 of these m/b and they all suffer from the same problem, anyone got an email address for Asus.
Thanks.
Walrolleyes

 

Asus doesn't, apparently, offer email support. But, this site tells you the currently best way to contact Asus for support.

 

Thanks guys.
I have contacted Asus now waiting for reply.
Wal